{"id":45820,"date":"2023-05-22T23:17:54","date_gmt":"2023-05-22T14:17:54","guid":{"rendered":"https:\/\/kinsta.com\/jp\/?p=45820&post_type=knowledgebase&preview_id=45820"},"modified":"2025-10-02T04:46:43","modified_gmt":"2025-10-01T19:46:43","slug":"spread-operator-javascript","status":"publish","type":"post","link":"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/","title":{"rendered":"JavaScript\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306e\u57fa\u672c\u7684\u306a\u4ed5\u7d44\u307f\u3068\u4f7f\u3044\u65b9"},"content":{"rendered":"

ECMAScript 6 (ES6) \u306e\u30ea\u30ea\u30fc\u30b9\u306b\u4f34\u3044\u3001JavaScript\u3092\u3088\u308a\u5f37\u529b\u3067\u8868\u73fe\u529b\u8c4a\u304b\u306a\u3082\u306e\u306b\u3059\u308b\u305f\u3081\u306b\u3001\u591a\u304f\u306e\u65b0\u6a5f\u80fd\u3068\u69cb\u6587\u306e\u5f37\u5316\u304c\u5c0e\u5165\u3055\u308c\u307e\u3057\u305f\u3002\u305d\u306e\u4e00\u3064\u304c\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u3067\u3001\u305d\u306e\u6c4e\u7528\u6027\u3068\u7c21\u6f54\u6027\u304b\u3089\u958b\u767a\u8005<\/a>\u306e\u9593\u3067\u6025\u901f\u306b\u4eba\u6c17\u304c\u9ad8\u307e\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001JavaScript<\/a>\u306e\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306e\u57fa\u672c\u7684\u306a\u7279\u5fb4\u3084\u7528\u9014\u3092\u307e\u3068\u3081\u306a\u304c\u3089\u3001\u30b3\u30fc\u30c9\u3092\u7c21\u7d20\u5316\u3057\u305d\u306e\u6f5c\u5728\u80fd\u529b\u3092\u6700\u5927\u9650\u306b\u5f15\u304d\u51fa\u3059\u65b9\u6cd5\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n

<\/div><\/kinsta-auto-toc>\n

JavaScript\u306e\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u3068\u306f<\/h2>\n

JavaScript\u306e\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u3068\u306f\u3001ECMAScript 6\uff08ES6\uff09\u3067\u5c0e\u5165\u3055\u308c\u305f\u6a5f\u80fd\u3067\u3001\u53cd\u5fa9\u53ef\u80fd\u306a\u8981\u7d20\uff08\u914d\u5217\u3001\u6587\u5b57\u5217\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306a\u3069\uff09\u3092\u5225\u306e\u53cd\u5fa9\u53ef\u80fd\u306a\u8981\u7d20\u3084\u95a2\u6570\u547c\u3073\u51fa\u3057\u306b\u5c55\u958b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u3053\u308c\u306f\u30013\u3064\u306e\u30c9\u30c3\u30c8 “...<\/code>” \u306e\u5f8c\u306b\u5f0f\u3084\u53cd\u5fa9\u53ef\u80fd\u306a\u8981\u7d20\u304c\u7d9a\u304f\u3053\u3068\u3067\u8868\u73fe\u3055\u308c\u307e\u3059\u3002\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u3092\u4f7f\u3063\u3066\u3001\u7c21\u6f54\u304b\u3064\u67d4\u8edf\u306bJavaScript\u3067\u30c7\u30fc\u30bf\u3092\u6271\u3046\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n

\u914d\u5217\u306e\u9023\u7d50\u3001\u914d\u5217\u306e\u30b7\u30e3\u30ed\u30fc\u30b3\u30d4\u30fc\u306e\u4f5c\u6210\u3001\u6587\u5b57\u306e\u914d\u5217\u3078\u306e\u5909\u63db\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u7d50\u5408\u3084\u8907\u88fd\u3001\u95a2\u6570\u3084\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3078\u306e\u52d5\u7684\u306a\u5024\u306e\u53d7\u3051\u6e21\u3057\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u7528\u9014\u3067\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306f\u3001\u8907\u96d1\u306a\u64cd\u4f5c\u3092\u7c21\u7565\u5316\u3057\u3001\u3088\u308a\u8868\u73fe\u529b\u8c4a\u304b\u3067\u52b9\u7387\u7684\u306a\u30b3\u30fc\u30c9\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001JavaScript\u958b\u767a\u8005<\/a>\u306e\u9593\u3067\u4eba\u6c17\u306e\u3042\u308b\u6a5f\u80fd\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n

JavaScript\u306e\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u3068\u305d\u306e\u4f7f\u7528\u65b9\u6cd5<\/h2>\n

\u914d\u5217\u3001\u6587\u5b57\u5217\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f7f\u3063\u305f\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306e\u4f8b\u3092\u898b\u3066\u3001\u305d\u306e\u4f7f\u3044\u65b9\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n

1. \u914d\u5217\u306e\u9023\u7d50<\/h3>\n

\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306f\u3001\u3042\u308b\u914d\u5217\u306e\u8981\u7d20\u3092\u5225\u306e\u914d\u5217\u306b\u79fb\u884c\u3059\u308b\u306e\u306b\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u914d\u5217\u306e\u9023\u7d50\u3084\u914d\u5217\u306e\u30b7\u30e3\u30ed\u30fc\u30b3\u30d4\u30fc\u306e\u4f5c\u6210\u306b\u4fbf\u5229\u3067\u3059\u3002<\/p>\n

\u4f8b\uff09<\/p>\n

const<\/span> arr1 =<\/span> [<\/span>1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>]<\/span>;<\/span>\nconst<\/span> arr2 =<\/span> [<\/span>4<\/span>,<\/span> 5<\/span>,<\/span> 6<\/span>]<\/span>;<\/span>\n\n\/\/ Concatenate arrays using spread operator<\/span>\nconst<\/span> concatenatedArr =<\/span> [<\/span>...<\/span>arr1,<\/span> ...<\/span>arr2]<\/span>;<\/span>\nconsole.<\/span>log<\/span>(<\/span>concatenatedArr)<\/span>;<\/span> \/\/ Output: [1, 2, 3, 4, 5, 6]<\/span><\/code><\/pre>\n
2. \u6587\u5b57\u5217\u306e\u5c55\u958b<\/h3>\n
\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u6587\u5b57\u5217\u306e\u500b\u3005\u306e\u6587\u5b57\u3092\u914d\u5217\u306b\u5c55\u958b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u6587\u5b57\u5217\u3092\u6587\u5b57\u306e\u914d\u5217\u306b\u5909\u63db\u3057\u3001\u914d\u5217\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u3066\u4ed6\u306e\u914d\u5217\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u64cd\u4f5c\u3059\u308b\u306e\u306b\u4fbf\u5229\u3067\u3059\u3002<\/p>\n
\u4f8b\uff09<\/p>\n
const<\/span> str =<\/span> \"Hello\"<\/span>;<\/span>\n\n\/\/ Spread characters of a string into an array<\/span>\nconst<\/span> charArray =<\/span> [<\/span>...<\/span>str]<\/span>;<\/span>\nconsole.<\/span>log<\/span>(<\/span>charArray)<\/span>;<\/span> \/\/ Output: ['H', 'e', 'l', 'l', 'o']<\/span><\/code><\/pre>\n
3. \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u7d50\u5408\u3068\u8907\u88fd<\/h3>\n
\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u3092\u4f7f\u7528\u3057\u3001\u3042\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u5225\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5c55\u958b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u7d50\u5408\u3084\u8907\u88fd\u3001\u4e00\u90e8\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3057\u305f\u65b0\u3057\u3044\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u4f5c\u6210\u3001\u305d\u3057\u3066\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304b\u3089\u7279\u5b9a\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u62bd\u51fa\u3059\u308b\u306e\u306b\u4fbf\u5229\u3067\u3059\u3002<\/p>\n
\u4f8b\uff09<\/p>\n
const<\/span> obj1 =<\/span> {<\/span> a<\/span>:<\/span> 1<\/span>,<\/span> b<\/span>:<\/span> 2<\/span> }<\/span>;<\/span>\nconst<\/span> obj2 =<\/span> {<\/span> b<\/span>:<\/span> 3<\/span>,<\/span> c<\/span>:<\/span> 4<\/span> }<\/span>;<\/span>\n\n\/\/ Merge objects using spread operator<\/span>\nconst<\/span> mergedObj =<\/span> {<\/span> ...<\/span>obj1,<\/span> ...<\/span>obj2 }<\/span>;<\/span>\nconsole.<\/span>log<\/span>(<\/span>mergedObj)<\/span>;<\/span> \/\/ Output: { a: 1, b: 3, c: 4 }<\/span>\n\n\/\/ Clone an object using spread operator<\/span>\nconst<\/span> clonedObj =<\/span> {<\/span> ...<\/span>obj1 }<\/span>;<\/span>\nconsole.<\/span>log<\/span>(<\/span>clonedObj)<\/span>;<\/span> \/\/ Output: { a: 1, b: 2 }<\/span><\/code><\/pre>\n
4. \u95a2\u6570\u5f15\u6570\u306e\u30b9\u30d7\u30ec\u30c3\u30c9<\/h3>\n
\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306f\u3001\u95a2\u6570\u3084\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306b\u52d5\u7684\u306b\u5024\u3092\u6e21\u3059\u305f\u3081\u306e\u95a2\u6570\u5f15\u6570\u306a\u3069\u3001\u4ed6\u306e\u7528\u9014\u3067\u3082\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u4f8b\uff09<\/p>\n
\/\/ Pass array elements as arguments to a function using the spread operator<\/span>\nconst<\/span> numbers =<\/span> [<\/span>1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>]<\/span>;<\/span>\n\nconst<\/span> sum<\/span> =<\/span> (<\/span>a,<\/span> b,<\/span> c<\/span>)<\/span> =><\/span> a +<\/span> b +<\/span> c;<\/span>\n\nconsole.<\/span>log<\/span>(<\/span>sum<\/span>(<\/span>...<\/span>numbers)<\/span>)<\/span>;<\/span> \/\/ Output: 6<\/span><\/code><\/pre>\n
5. \u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u3068rest\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u7d44\u307f\u5408\u308f\u305b<\/h3>\n
\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306f\u3001\u914d\u5217\u3084\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u5206\u5272\u4ee3\u5165\u306a\u3069\u3001\u4ed6\u306e\u6700\u65b0\u306eJavaScript\u306e\u6a5f\u80fd\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u5f37\u529b\u306a\u95a2\u6570\u578b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u6280\u8853\u3092\u5b9f\u73fe\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u7c21\u6f54\u3067\u8868\u73fe\u529b\u8c4a\u304b\u306a\u69cb\u6587\u3067\u3001\u914d\u5217\u306e\u8981\u7d20\u3084\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u62bd\u51fa\u3057\u3066\u64cd\u4f5c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n
\u4f8b\uff09<\/p>\n
const<\/span> numbers =<\/span> [<\/span>1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>,<\/span> 5<\/span>]<\/span>;<\/span>\nconst<\/span> [<\/span>first,<\/span> second,<\/span> ...<\/span>rest]<\/span> =<\/span> numbers;<\/span>\n\nconsole.<\/span>log<\/span>(<\/span>first)<\/span>;<\/span> \/\/ Output: 1<\/span>\nconsole.<\/span>log<\/span>(<\/span>second)<\/span>;<\/span> \/\/ Output: 2<\/span>\nconsole.<\/span>log<\/span>(<\/span>rest)<\/span>;<\/span> \/\/ Output: [3, 4, 5]<\/span><\/code><\/pre>\n
\u4e0a\u8a18\u306e\u4f8b\u306f\u3001JavaScript\u306b\u304a\u3051\u308b\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306e\u591a\u6a5f\u80fd\u6027\u3068\u67d4\u8edf\u6027\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u7c21\u6f54\u304b\u3064\u52b9\u7387\u7684\u306b\u30c7\u30fc\u30bf\u3092\u64cd\u4f5c\u3057\u305f\u308a\u7d44\u307f\u5408\u308f\u305b\u305f\u308a\u3059\u308b\u4fbf\u5229\u306a\u6a5f\u80fd\u3067\u3059\u3002<\/p>\n
\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u3068\u30b7\u30e3\u30ed\u30fc\u30b3\u30d4\u30fc<\/h2>\n
\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306f\u914d\u5217\u3084\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30b7\u30e3\u30ed\u30fc\u30b3\u30d4\u30fc\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u5927\u304d\u306a\u914d\u5217\u3084\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u4f7f\u7528\u3059\u308b\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5f71\u97ff\u3092\u53ca\u307c\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u3001\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n
const<\/span> originalArray =<\/span> [<\/span>[<\/span>1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>,<\/span> 4<\/span>]<\/span>,<\/span> 12<\/span>]<\/span>;<\/span>\nconst<\/span> copiedArray =<\/span> [<\/span>...<\/span>originalArray]<\/span>;<\/span>\n\ncopiedArray[<\/span>0<\/span>]<\/span>.<\/span>push<\/span>(<\/span>99<\/span>)<\/span>;<\/span>\n\nconsole.<\/span>log<\/span>(<\/span>originalArray)<\/span>;<\/span> \/\/ Output: [[1, 2, 3, 4, 99], 12]<\/span>\nconsole.<\/span>log<\/span>(<\/span>copiedArray)<\/span>;<\/span> \/\/ Output: [[1, 2, 3, 4, 99], 12]<\/span><\/code><\/pre>\n
\u3053\u306e\u30b3\u30fc\u30c9\u306eoriginalArray<\/code>\u306f4\u3064\u306e\u8981\u7d20\u3092\u6301\u3064\u914d\u5217\u3067\u3059\u3002\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u3092\u4f7f\u3063\u3066\u3001\u65b0\u3057\u3044\u914d\u5217copiedArray<\/code>\u3092\u4f5c\u6210\u3057\u3001originalArray<\/code>\u306e\u8981\u7d20\u3092\u305d\u306e\u4e2d\u306b\u5165\u308c\u3066\u3044\u307e\u3059\u3002\u6b21\u306b\u3001push<\/code>\u30e1\u30bd\u30c3\u30c9\u306799<\/code>\u3092\u8ffd\u52a0\u3057\u3001copiedArray<\/code>\u306e\u6700\u521d\u306e\u8981\u7d20\u3092\u5909\u66f4\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
copiedArray<\/code>\u3092\u51fa\u529b\u3059\u308b\u3068\u300199<\/code>\u304c\u6700\u521d\u306e\u8981\u7d20\u306e\u914d\u5217\u306b\u8ffd\u52a0\u3055\u308c\u305f\u3053\u3068\u304c\u51fa\u529b\u3055\u308c\u307e\u3059\u304c\u3001\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306e\u30b7\u30e3\u30ed\u30fc\u30b3\u30d4\u30fc\u306b\u306f\u554f\u984c\u304c\u3042\u308a\u307e\u3059\u3002copiedArray<\/code>\u306e\u5909\u66f4\u306f\u3001originalArray<\/code>\u306b\u5f71\u97ff\u3057\u307e\u3059\u3002<\/p>\n
\u3053\u308c\u306f\u3001\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u304c\u8981\u7d20\u3084\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u65b0\u3057\u3044\u30b3\u30d4\u30fc\u3092\u4f5c\u6210\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u5143\u306e\u8981\u7d20\u3084\u30d7\u30ed\u30d1\u30c6\u30a3\u3078\u306e\u53c2\u7167\u3092\u5171\u6709\u3059\u308b\u305f\u3081\u3067\u3059\u3002\u3053\u306e\u4ed5\u69d8\u304c\u3001\u5927\u304d\u306a\u914d\u5217\u3084\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u6271\u3046\u5834\u5408\u306b\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
\u3057\u305f\u304c\u3063\u3066\u3001\u5927\u304d\u306a\u914d\u5217\u3084\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u6271\u3046\u5834\u5408\u3084\u3001\u30b3\u30d4\u30fc\u3057\u305f\u914d\u5217\u3084\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u5143\u306e\u914d\u5217\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u305a\u306b\u4fee\u6b63\u3059\u308b\u306b\u306f\u3001\u30c7\u30a3\u30fc\u30d7\u30b3\u30d4\u30fc\u3084\u8907\u96d1\u306a\u30c7\u30fc\u30bf\u69cb\u9020\u3092\u6271\u3046\u305f\u3081\u306b\u7279\u5225\u306b\u8a2d\u8a08\u3055\u308c\u305f\u30e9\u30a4\u30d6\u30e9\u30ea<\/a>\u306a\u3069\u3001\u4ed6\u306e\u65b9\u6cd5\u3092\u691c\u8a0e\u3059\u308b\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002<\/p>\n
\u6700\u9069\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u4fdd\u5b88\u6027\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u3092\u614e\u91cd\u306b\u4f7f\u7528\u3057\u3001\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306b\u5f93\u3046\u3053\u3068\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n
\u6700\u9069\u5316\u306e\u305f\u3081\u306e3\u3064\u306e\u30d2\u30f3\u30c8<\/h2>\n
\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306e\u6027\u80fd\u3092\u6700\u9069\u5316\u3057\u3001\u3088\u304f\u3042\u308b\u843d\u3068\u3057\u7a74\u3092\u56de\u907f\u3059\u308b\u30d2\u30f3\u30c8\u304c\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n
    \n
  1. \u7279\u306b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u91cd\u8981\u306a\u30b3\u30fc\u30c9\u30d1\u30b9\u3067\u306f\u3001\u5927\u304d\u306a\u914d\u5217\u3084\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u5c55\u958b\u3057\u306a\u3044\u3088\u3046\u306b\u3059\u308b<\/li>\n
  2. \u5165\u308c\u5b50\u306b\u306a\u3063\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u5c55\u958b\u3059\u308b\u969b\u306b\u306f\u3001\u6f5c\u5728\u7684\u306a\u526f\u4f5c\u7528\u306b\u6ce8\u610f\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u30c7\u30a3\u30fc\u30d7\u30b3\u30d4\u30fc\u3092\u5229\u7528\u3059\u308b<\/li>\n
  3. \u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306f\u614e\u91cd\u306b\u4f7f\u7528\u3057\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u4f4e\u4e0b\u304c\u61f8\u5ff5\u3055\u308c\u308b\u5834\u5408\u306f\u5225\u306e\u65b9\u6cd5\u3092\u691c\u8a0e\u3059\u308b<\/li>\n<\/ol>\n\n
    \u307e\u3068\u3081<\/h2>\n
    \u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\uff08…\uff09\u3092\u4f7f\u3046\u3068\u3001\u914d\u5217\u306e\u9023\u7d50\u3001\u914d\u5217\u3084\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u8907\u88fd\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u7d50\u5408\u3001\u95a2\u6570\u306e\u5f15\u6570\u306e\u52d5\u7684\u751f\u6210\u3001\u8907\u96d1\u306b\u30cd\u30b9\u30c8\u3057\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3084\u914d\u5217\u306e\u8907\u88fd\u306a\u3069\u3092\u3001\u7c21\u6f54\u304b\u3064\u30af\u30ea\u30fc\u30f3\u306b\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
    \u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306f\u305d\u306e\u67d4\u8edf\u6027\u304b\u3089\u3001\u4eca\u5f8c\u306eJavaScript\u958b\u767a\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3059\u3053\u3068\u3067\u3057\u3087\u3046\u3002\u4eca\u307e\u3067\u4ee5\u4e0a\u306b\u7c21\u6f54\u3067\u8aad\u307f\u3084\u3059\u304f\u3001\u52b9\u7387\u7684\u306a\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
    ECMAScript 6 (ES6) \u306e\u30ea\u30ea\u30fc\u30b9\u306b\u4f34 …<\/p>\n","protected":false},"author":287,"featured_media":45821,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kinsta_gated_content":false,"_kinsta_gated_content_redirect":"","footnotes":""},"tags":[],"topic":[778],"class_list":["post-45820","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","topic-javascript-tutorials"],"yoast_head":"\nJavaScript\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306e\u57fa\u672c\u7684\u306a\u4ed5\u7d44\u307f\u3068\u4f7f\u3044\u65b9\uff5cKinsta\u00ae<\/title>\n<meta name=\"description\" content=\"JavaScript\u306e\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306f\u512a\u308c\u305f\u6a5f\u80fd\u3067\u3059\u3002\u3053\u3061\u3089\u306e\u8a18\u4e8b\u3067\u306f\u3001\u305d\u306e\u5229\u4fbf\u6027\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"JavaScript\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306e\u57fa\u672c\u7684\u306a\u4ed5\u7d44\u307f\u3068\u4f7f\u3044\u65b9\" \/>\n<meta property=\"og:description\" content=\"JavaScript\u306e\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306f\u512a\u308c\u305f\u6a5f\u80fd\u3067\u3059\u3002\u3053\u3061\u3089\u306e\u8a18\u4e8b\u3067\u306f\u3001\u305d\u306e\u5229\u4fbf\u6027\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/\" \/>\n<meta property=\"og:site_name\" content=\"Kinsta\u00ae\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Kinsta-Japan-334616080691171\/\" \/>\n<meta property=\"article:published_time\" content=\"2023-05-22T14:17:54+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-10-01T19:46:43+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2023\/05\/spread-operator-javascript.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"3043\" \/>\n\t<meta property=\"og:image:height\" content=\"1522\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Joel Olawanle\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:description\" content=\"JavaScript\u306e\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306f\u512a\u308c\u305f\u6a5f\u80fd\u3067\u3059\u3002\u3053\u3061\u3089\u306e\u8a18\u4e8b\u3067\u306f\u3001\u305d\u306e\u5229\u4fbf\u6027\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2023\/05\/spread-operator-javascript.jpg\" \/>\n<meta name=\"twitter:creator\" content=\"@olawanle_joel\" \/>\n<meta name=\"twitter:site\" content=\"@Kinsta_JP\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"Joel Olawanle\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593\" \/>\n\t<meta name=\"twitter:data2\" content=\"2\u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/\"},\"author\":{\"name\":\"Joel Olawanle\",\"@id\":\"https:\/\/kinsta.com\/jp\/#\/schema\/person\/efa7de30245ca15be5ce1dcacff89c07\"},\"headline\":\"JavaScript\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306e\u57fa\u672c\u7684\u306a\u4ed5\u7d44\u307f\u3068\u4f7f\u3044\u65b9\",\"datePublished\":\"2023-05-22T14:17:54+00:00\",\"dateModified\":\"2025-10-01T19:46:43+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/\"},\"wordCount\":36,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/kinsta.com\/jp\/#organization\"},\"image\":{\"@id\":\"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2023\/05\/spread-operator-javascript.jpg\",\"inLanguage\":\"ja\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/\",\"url\":\"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/\",\"name\":\"JavaScript\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306e\u57fa\u672c\u7684\u306a\u4ed5\u7d44\u307f\u3068\u4f7f\u3044\u65b9\uff5cKinsta\u00ae\",\"isPartOf\":{\"@id\":\"https:\/\/kinsta.com\/jp\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2023\/05\/spread-operator-javascript.jpg\",\"datePublished\":\"2023-05-22T14:17:54+00:00\",\"dateModified\":\"2025-10-01T19:46:43+00:00\",\"description\":\"JavaScript\u306e\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306f\u512a\u308c\u305f\u6a5f\u80fd\u3067\u3059\u3002\u3053\u3061\u3089\u306e\u8a18\u4e8b\u3067\u306f\u3001\u305d\u306e\u5229\u4fbf\u6027\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002\",\"breadcrumb\":{\"@id\":\"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/#breadcrumb\"},\"inLanguage\":\"ja\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/#primaryimage\",\"url\":\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2023\/05\/spread-operator-javascript.jpg\",\"contentUrl\":\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2023\/05\/spread-operator-javascript.jpg\",\"width\":3043,\"height\":1522,\"caption\":\"JavaScript\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306e\u57fa\u672c\u7684\u306a\u4ed5\u7d44\u307f\u3068\u4f7f\u3044\u65b9\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/kinsta.com\/jp\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"JavaScript\u5b66\u7fd2\u30ea\u30bd\u30fc\u30b9\",\"item\":\"https:\/\/kinsta.com\/jp\/topics\/javascript-tutorials\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"JavaScript\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306e\u57fa\u672c\u7684\u306a\u4ed5\u7d44\u307f\u3068\u4f7f\u3044\u65b9\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/kinsta.com\/jp\/#website\",\"url\":\"https:\/\/kinsta.com\/jp\/\",\"name\":\"Kinsta\u00ae\",\"description\":\"\u9ad8\u901f\u304b\u3064\u5805\u7262\u306a\u30d7\u30ec\u30df\u30a2\u30e0\u30b5\u30fc\u30d0\u30fc\u30b5\u30fc\u30d3\u30b9\",\"publisher\":{\"@id\":\"https:\/\/kinsta.com\/jp\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/kinsta.com\/jp\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ja\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/kinsta.com\/jp\/#organization\",\"name\":\"Kinsta\",\"url\":\"https:\/\/kinsta.com\/jp\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\/\/kinsta.com\/jp\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2023\/12\/kinsta-logo.jpeg\",\"contentUrl\":\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2023\/12\/kinsta-logo.jpeg\",\"width\":500,\"height\":500,\"caption\":\"Kinsta\"},\"image\":{\"@id\":\"https:\/\/kinsta.com\/jp\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/Kinsta-Japan-334616080691171\/\",\"https:\/\/x.com\/Kinsta_JP\",\"https:\/\/www.instagram.com\/kinstahosting\/\",\"https:\/\/www.linkedin.com\/company\/kinsta\/\",\"https:\/\/www.pinterest.com\/kinstahosting\/\",\"https:\/\/www.youtube.com\/c\/Kinsta\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/kinsta.com\/jp\/#\/schema\/person\/efa7de30245ca15be5ce1dcacff89c07\",\"name\":\"Joel Olawanle\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\/\/kinsta.com\/jp\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/051bf577ce2c837846a1db9eef184758?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/051bf577ce2c837846a1db9eef184758?s=96&d=mm&r=g\",\"caption\":\"Joel Olawanle\"},\"description\":\"Joel is a Frontend developer working at Kinsta as a Technical Editor. He is a passionate teacher with love for open source and has written over 300 technical articles majorly around JavaScript and it's frameworks.\",\"sameAs\":[\"https:\/\/joelolawanle.com\/\",\"https:\/\/www.linkedin.com\/in\/olawanlejoel\/\",\"https:\/\/x.com\/olawanle_joel\",\"https:\/\/www.youtube.com\/@joelolawanle\"],\"gender\":\"male\",\"knowsAbout\":[\"JavaScript\",\"React\",\"Next.js\"],\"knowsLanguage\":[\"English\"],\"jobTitle\":\"Technical Editor\",\"worksFor\":\"Kinsta\",\"url\":\"https:\/\/kinsta.com\/jp\/blog\/author\/joelolawanle\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"JavaScript\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306e\u57fa\u672c\u7684\u306a\u4ed5\u7d44\u307f\u3068\u4f7f\u3044\u65b9\uff5cKinsta\u00ae","description":"JavaScript\u306e\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306f\u512a\u308c\u305f\u6a5f\u80fd\u3067\u3059\u3002\u3053\u3061\u3089\u306e\u8a18\u4e8b\u3067\u306f\u3001\u305d\u306e\u5229\u4fbf\u6027\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/","og_locale":"ja_JP","og_type":"article","og_title":"JavaScript\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306e\u57fa\u672c\u7684\u306a\u4ed5\u7d44\u307f\u3068\u4f7f\u3044\u65b9","og_description":"JavaScript\u306e\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306f\u512a\u308c\u305f\u6a5f\u80fd\u3067\u3059\u3002\u3053\u3061\u3089\u306e\u8a18\u4e8b\u3067\u306f\u3001\u305d\u306e\u5229\u4fbf\u6027\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002","og_url":"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/","og_site_name":"Kinsta\u00ae","article_publisher":"https:\/\/www.facebook.com\/Kinsta-Japan-334616080691171\/","article_published_time":"2023-05-22T14:17:54+00:00","article_modified_time":"2025-10-01T19:46:43+00:00","og_image":[{"width":3043,"height":1522,"url":"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2023\/05\/spread-operator-javascript.jpg","type":"image\/jpeg"}],"author":"Joel Olawanle","twitter_card":"summary_large_image","twitter_description":"JavaScript\u306e\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306f\u512a\u308c\u305f\u6a5f\u80fd\u3067\u3059\u3002\u3053\u3061\u3089\u306e\u8a18\u4e8b\u3067\u306f\u3001\u305d\u306e\u5229\u4fbf\u6027\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002","twitter_image":"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2023\/05\/spread-operator-javascript.jpg","twitter_creator":"@olawanle_joel","twitter_site":"@Kinsta_JP","twitter_misc":{"\u57f7\u7b46\u8005":"Joel Olawanle","\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593":"2\u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/#article","isPartOf":{"@id":"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/"},"author":{"name":"Joel Olawanle","@id":"https:\/\/kinsta.com\/jp\/#\/schema\/person\/efa7de30245ca15be5ce1dcacff89c07"},"headline":"JavaScript\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306e\u57fa\u672c\u7684\u306a\u4ed5\u7d44\u307f\u3068\u4f7f\u3044\u65b9","datePublished":"2023-05-22T14:17:54+00:00","dateModified":"2025-10-01T19:46:43+00:00","mainEntityOfPage":{"@id":"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/"},"wordCount":36,"commentCount":0,"publisher":{"@id":"https:\/\/kinsta.com\/jp\/#organization"},"image":{"@id":"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/#primaryimage"},"thumbnailUrl":"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2023\/05\/spread-operator-javascript.jpg","inLanguage":"ja","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/","url":"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/","name":"JavaScript\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306e\u57fa\u672c\u7684\u306a\u4ed5\u7d44\u307f\u3068\u4f7f\u3044\u65b9\uff5cKinsta\u00ae","isPartOf":{"@id":"https:\/\/kinsta.com\/jp\/#website"},"primaryImageOfPage":{"@id":"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/#primaryimage"},"image":{"@id":"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/#primaryimage"},"thumbnailUrl":"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2023\/05\/spread-operator-javascript.jpg","datePublished":"2023-05-22T14:17:54+00:00","dateModified":"2025-10-01T19:46:43+00:00","description":"JavaScript\u306e\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306f\u512a\u308c\u305f\u6a5f\u80fd\u3067\u3059\u3002\u3053\u3061\u3089\u306e\u8a18\u4e8b\u3067\u306f\u3001\u305d\u306e\u5229\u4fbf\u6027\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002","breadcrumb":{"@id":"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/#breadcrumb"},"inLanguage":"ja","potentialAction":[{"@type":"ReadAction","target":["https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/"]}]},{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/#primaryimage","url":"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2023\/05\/spread-operator-javascript.jpg","contentUrl":"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2023\/05\/spread-operator-javascript.jpg","width":3043,"height":1522,"caption":"JavaScript\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306e\u57fa\u672c\u7684\u306a\u4ed5\u7d44\u307f\u3068\u4f7f\u3044\u65b9"},{"@type":"BreadcrumbList","@id":"https:\/\/kinsta.com\/jp\/blog\/spread-operator-javascript\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/kinsta.com\/jp\/"},{"@type":"ListItem","position":2,"name":"JavaScript\u5b66\u7fd2\u30ea\u30bd\u30fc\u30b9","item":"https:\/\/kinsta.com\/jp\/topics\/javascript-tutorials\/"},{"@type":"ListItem","position":3,"name":"JavaScript\u30b9\u30d7\u30ec\u30c3\u30c9\u69cb\u6587\u306e\u57fa\u672c\u7684\u306a\u4ed5\u7d44\u307f\u3068\u4f7f\u3044\u65b9"}]},{"@type":"WebSite","@id":"https:\/\/kinsta.com\/jp\/#website","url":"https:\/\/kinsta.com\/jp\/","name":"Kinsta\u00ae","description":"\u9ad8\u901f\u304b\u3064\u5805\u7262\u306a\u30d7\u30ec\u30df\u30a2\u30e0\u30b5\u30fc\u30d0\u30fc\u30b5\u30fc\u30d3\u30b9","publisher":{"@id":"https:\/\/kinsta.com\/jp\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/kinsta.com\/jp\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ja"},{"@type":"Organization","@id":"https:\/\/kinsta.com\/jp\/#organization","name":"Kinsta","url":"https:\/\/kinsta.com\/jp\/","logo":{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/kinsta.com\/jp\/#\/schema\/logo\/image\/","url":"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2023\/12\/kinsta-logo.jpeg","contentUrl":"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2023\/12\/kinsta-logo.jpeg","width":500,"height":500,"caption":"Kinsta"},"image":{"@id":"https:\/\/kinsta.com\/jp\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/Kinsta-Japan-334616080691171\/","https:\/\/x.com\/Kinsta_JP","https:\/\/www.instagram.com\/kinstahosting\/","https:\/\/www.linkedin.com\/company\/kinsta\/","https:\/\/www.pinterest.com\/kinstahosting\/","https:\/\/www.youtube.com\/c\/Kinsta"]},{"@type":"Person","@id":"https:\/\/kinsta.com\/jp\/#\/schema\/person\/efa7de30245ca15be5ce1dcacff89c07","name":"Joel Olawanle","image":{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/kinsta.com\/jp\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/051bf577ce2c837846a1db9eef184758?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/051bf577ce2c837846a1db9eef184758?s=96&d=mm&r=g","caption":"Joel Olawanle"},"description":"Joel is a Frontend developer working at Kinsta as a Technical Editor. He is a passionate teacher with love for open source and has written over 300 technical articles majorly around JavaScript and it's frameworks.","sameAs":["https:\/\/joelolawanle.com\/","https:\/\/www.linkedin.com\/in\/olawanlejoel\/","https:\/\/x.com\/olawanle_joel","https:\/\/www.youtube.com\/@joelolawanle"],"gender":"male","knowsAbout":["JavaScript","React","Next.js"],"knowsLanguage":["English"],"jobTitle":"Technical Editor","worksFor":"Kinsta","url":"https:\/\/kinsta.com\/jp\/blog\/author\/joelolawanle\/"}]}},"acf":[],"_links":{"self":[{"href":"https:\/\/kinsta.com\/jp\/wp-json\/wp\/v2\/posts\/45820","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kinsta.com\/jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kinsta.com\/jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kinsta.com\/jp\/wp-json\/wp\/v2\/users\/287"}],"replies":[{"embeddable":true,"href":"https:\/\/kinsta.com\/jp\/wp-json\/wp\/v2\/comments?post=45820"}],"version-history":[{"count":11,"href":"https:\/\/kinsta.com\/jp\/wp-json\/wp\/v2\/posts\/45820\/revisions"}],"predecessor-version":[{"id":46761,"href":"https:\/\/kinsta.com\/jp\/wp-json\/wp\/v2\/posts\/45820\/revisions\/46761"}],"alternate":[{"embeddable":true,"hreflang":"en","title":"English","href":"https:\/\/kinsta.com\/jp\/wp-json\/kinsta\/v1\/posts\/45820\/translations\/en"},{"embeddable":true,"hreflang":"it","title":"Italian","href":"https:\/\/kinsta.com\/jp\/wp-json\/kinsta\/v1\/posts\/45820\/translations\/it"},{"embeddable":true,"hreflang":"pt","title":"Portuguese","href":"https:\/\/kinsta.com\/jp\/wp-json\/kinsta\/v1\/posts\/45820\/translations\/pt"},{"embeddable":true,"hreflang":"fr","title":"French","href":"https:\/\/kinsta.com\/jp\/wp-json\/kinsta\/v1\/posts\/45820\/translations\/fr"},{"embeddable":true,"hreflang":"de","title":"German","href":"https:\/\/kinsta.com\/jp\/wp-json\/kinsta\/v1\/posts\/45820\/translations\/de"},{"embeddable":true,"hreflang":"ja","title":"Japanese","href":"https:\/\/kinsta.com\/jp\/wp-json\/kinsta\/v1\/posts\/45820\/translations\/jp"},{"embeddable":true,"hreflang":"nl","title":"Dutch","href":"https:\/\/kinsta.com\/jp\/wp-json\/kinsta\/v1\/posts\/45820\/translations\/nl"},{"embeddable":true,"hreflang":"es","title":"Spanish","href":"https:\/\/kinsta.com\/jp\/wp-json\/kinsta\/v1\/posts\/45820\/translations\/es"},{"href":"https:\/\/kinsta.com\/jp\/wp-json\/kinsta\/v1\/posts\/45820\/tree"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kinsta.com\/jp\/wp-json\/wp\/v2\/media\/45821"}],"wp:attachment":[{"href":"https:\/\/kinsta.com\/jp\/wp-json\/wp\/v2\/media?parent=45820"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kinsta.com\/jp\/wp-json\/wp\/v2\/tags?post=45820"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/kinsta.com\/jp\/wp-json\/wp\/v2\/topic?post=45820"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}