{"id":3319,"date":"2022-04-23T19:51:10","date_gmt":"2022-04-23T11:51:10","guid":{"rendered":"http:\/\/www.yuguoxy.com\/geekhome\/?p=3319"},"modified":"2026-08-18T12:35:35","modified_gmt":"2026-08-18T04:35:35","slug":"%e6%b7%b1%e6%8b%b7%e8%b4%9d%e5%92%8c%e6%b5%85%e6%8b%b7%e8%b4%9d","status":"publish","type":"post","link":"https:\/\/ai.zhousir.top\/?p=3319","title":{"rendered":"\u6df1\u62f7\u8d1d\u548c\u6d45\u62f7\u8d1d"},"content":{"rendered":"
\n

\u6df1\u62f7\u8d1d\u548c\u6d45\u62f7\u8d1d\u662f\u9762\u8bd5\u9ad8\u9891\u9898\uff0c\u8003\u7684\u662f\u4f60\u5bf9\u57fa\u672c\u7c7b\u578b<\/strong> \u548c \u5f15\u7528\u7c7b\u578b<\/strong> \u5728\u5185\u5b58\u91cc\u600e\u4e48\u653e\u7684\u7406\u89e3\u3002 \u62f7\u8d1d\u7684\u76ee\u6807\u5f88\u660e\u786e\uff1a\u4ece obj \u5f97\u5230\u4e00\u4e2a\u300c\u770b\u8d77\u6765\u4e00\u6837\u300d\u7684\u65b0\u5bf9\u8c61\uff0c\u4f46\u4e24\u5c42\u5f15\u7528\u5230\u5e95\u65ad\u6ca1\u65ad\uff0c\u5dee\u522b\u5de8\u5927\u3002<\/p>\n

\u5185\u5b58\u53ef\u4ee5\u7c97\u5206\u4e3a\u6808<\/strong>\u548c\u5806<\/strong>\u3002\u57fa\u672c\u7c7b\u578b\u7684\u503c\u548c\u6307\u5411\u5806\u7684\u5f15\u7528\u53d8\u91cf\u653e\u5728\u6808\u4e0a\uff1b\u5bf9\u8c61\u3001\u6570\u7ec4\u8fd9\u7c7b\u590d\u6742\u6570\u636e\u653e\u5728\u5806\u4e0a\u3002\u6d45\u62f7\u8d1d\u53ea\u590d\u5236\u6700\u5916\u4e00\u5c42\uff0c\u6df1\u62f7\u8d1d\u4f1a\u8fde\u5d4c\u5957\u5bf9\u8c61\u4e00\u8d77\u505a\u6210\u5168\u65b0\u526f\u672c\u3002<\/p>\n

\u4e00\u3001\u5148\u770b\u8fd9\u4e00\u4efd\u5bf9\u8c61<\/h2>\n
const obj = {\n\tname: 'jack',\n\tage: 18,\n\tfun: { swiming: '\u6e38\u6cf3' }, \/\/ Object\n}<\/code><\/pre>\n
\u6d45\u62f7\u8d1d\u53ea\u590d\u5236\u4e00\u5c42\uff0c\u5c5e\u6027\u503c\u82e5\u4ecd\u662f\u5bf9\u8c61\uff0c\u4e24\u8fb9\u4f1a\u6307\u5411\u540c\u4e00\u5757\u5806\u5185\u5b58\uff1a<\/p>\n
\"20220423193220\"<\/a><\/p>\n
\u6df1\u62f7\u8d1d\u5219\u8fde\u5d4c\u5957\u5bf9\u8c61\u4e00\u8d77\u65b0\u5efa\uff1a<\/p>\n
\"20220423193605\"<\/a><\/p>\n
\u4e8c\u3001\u5e38\u89c1\u5b9e\u73b0\u548c\u5404\u81ea\u7684\u5751<\/h2>\n
1. JSON.parse(JSON.stringify(obj))<\/h3>\n
\u51fd\u6570\u548c undefined<\/code> \u62f7\u4e0d\u8fc7\u53bb\uff0c\u4f1a\u4e22\uff1a<\/p>\n
const obj = {\n\tname: 'jack',\n\tage: 18,\n\thobby: {swiming:'\u6e38\u6cf3'},\n\tarr: [{ score: 98 }],\n\tsay: () => {},         \/\/ Function    \u65e0\u6cd5\u62f7\u8d1d\n\tnumber: undefined,     \/\/ undefined   \u65e0\u6cd5\u62f7\u8d1d\n}<\/code><\/pre>\n
2. Object.assign \u6216\u5c55\u5f00\u8fd0\u7b97\u7b26<\/h3>\n
Object.assign<\/code> \/ {...obj}<\/code> \u53ea\u62f7\u4e00\u5c42\u3002\u5d4c\u5957\u7684 Object\u3001Array \u4ecd\u7136\u5171\u4eab\u5f15\u7528\uff1a<\/p>\n
const obj = {\n\tname: 'jack',\n\tage: 18,\n\thobby: {swiming:'\u6e38\u6cf3'}, \/\/ Object   \u65e0\u6cd5\u62f7\u8d1d\n\tarr: [{ score: 98 }],   \/\/ Array     \u65e0\u6cd5\u62f7\u8d1d\n\tsay: () => {},         \/\/ Function   \u65e0\u6cd5\u62f7\u8d1d\n\tnumber: undefined,     \/\/ undefined\n}<\/code><\/pre>\n
3. \u9012\u5f52 cloneDeep()<\/h3>\n
\u9047\u5230\u5bf9\u8c61\uff08\u542b\u6570\u7ec4\uff09\u5c31\u518d\u8fdb\u4e00\u5c42\uff0c\u5426\u5219\u76f4\u63a5\u8d4b\u503c\u3002\u8fd9\u662f\u4e0b\u9762\u6848\u4f8b\u91cc\u7684\u4e3b\u65b9\u6848\u3002<\/p>\n
4. \u600e\u4e48\u9009<\/h3>\n
    \n
  • \n
    \u5c5e\u6027\u503c\u91cc\u6ca1\u6709\u5d4c\u5957\u5bf9\u8c61\uff0c\u53ea\u7528\u4e00\u5c42\uff1a\u7528\u5c55\u5f00\u8fd0\u7b97\u7b26 {...obj}<\/code>\uff1b<\/section>\n<\/li>\n
  • \n
    \u6ca1\u6709 Function\u3001\u4e5f\u6ca1\u6709 undefined<\/code>\uff1a\u53ef\u7528 JSON.parse(JSON.stringify(obj))<\/code>\uff1b<\/section>\n<\/li>\n
  • \n
    \u5426\u5219\u8d70\u9012\u5f52\u3002<\/section>\n<\/li>\n<\/ul>\n\n\n\n\n\n\n\n
    \u65b9\u6cd5<\/th>\n\u6df1\u5ea6<\/th>\n\u4e22\u4ec0\u4e48<\/th>\n<\/tr>\n<\/thead>\n
    {...obj}<\/code> \/ Object.assign<\/code><\/td>\n\u4e00\u5c42<\/td>\n\u5d4c\u5957\u5bf9\u8c61\/\u6570\u7ec4\u4ecd\u5171\u4eab<\/td>\n<\/tr>\n
    JSON.parse(JSON.stringify)<\/code><\/td>\n\u591a\u5c42<\/td>\nFunction\u3001undefined\u3001\u5faa\u73af\u5f15\u7528\u7b49<\/td>\n<\/tr>\n
    \u9012\u5f52 cloneDeep<\/td>\n\u591a\u5c42<\/td>\n\u5b9e\u73b0\u65f6\u8981\u81ea\u5df1\u5904\u7406\u5faa\u73af\u5f15\u7528\u3001\u7279\u6b8a\u7c7b\u578b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \u4e09\u3001\u6848\u4f8b<\/h2>\n
    const testJSON = () => {\n\tconst obj = {\n\t\tname: 'jack',\n\t\tage: 18,\n\t\thobby: { swiming: '\u6e38\u6cf3' },\n\t\tarr: [{ score: 98 }],\n\t\tsay: () => {},\n\t\tnumber: undefined,\n\t}\n\tconst cloneObj = JSON.parse(JSON.stringify(obj))\n\tconsole.log('obj :', obj, '\\n cloneObj :', cloneObj)\n}<\/code><\/pre>\n
    const testAssign = () => {\n\tconst obj = {\n\t\tname: 'jack',\n\t\tage: 18,\n\t\thobby: { swiming: '\u6e38\u6cf3' },\n\t\tarr: [{ score: 98 }],\n\t\tsay: () => {console.log('say>>')},\n\t\tnumber: undefined,\n\t}\n\tconst cloneObj = { ...obj }\n\tcloneObj.name = 'rose'\n\tcloneObj.age = 20\n\tcloneObj.hobby.swiming = '\u4e0d\u4f1a\u6e38\u6cf3' \/\/ cloneObj.hobby == obj.hobby\n\tcloneObj.arr[0].score = 100\n\tcloneObj.say()\n\tconsole.log('obj :', obj, '\\n cloneObj :', cloneObj)\n}<\/code><\/pre>\n
    const cloneDeep = data => {\n\tconst newData = Array.isArray(data) ? [] : {}\n\tfor (let key in data) {\n\t\tif (data[key] && typeof data[key] === 'object') {\n\t\t\tnewData[key] = cloneDeep(data[key])\n\t\t} else {\n\t\t\tnewData[key] = data[key]\n\t\t}\n\t}\n\treturn newData\n}<\/code><\/pre>\n
    const testCloneDeep = () => {\n\tconst obj = {\n\t\tname: 'jack',\n\t\tage: 18,\n\t\thobby: { swiming: '\u6e38\u6cf3' },\n\t\tarr: [{ score: 98 }],\n\t\tsay: () => {},\n\t\tnumber: undefined,\n\t\tstudents: [{ student: { num: { id: 1 } } }],\n\t}\n\tconst cloneObj = cloneDeep(obj)\n\tcloneObj.name = 'rose'\n\tcloneObj.age = 20\n\tcloneObj.hobby.swiming = '\u4e0d\u4f1a\u6e38\u6cf3'\n\tcloneObj.arr[0].score = 100\n\tcloneObj.students[0].student.num.id = 100\n\tconsole.log('obj :', obj, '\\n cloneObj :', cloneObj)\n\tconsole.log(cloneObj.students[0].student.num.id === obj.students[0].student.num.id)\n}<\/code><\/pre>\n
    \u56db\u3001\u6309\u7c7b\u578b\u8d70\u7684\u4f18\u5316\u5c01\u88c5<\/h2>\n
    const isObjectValue = data => {\n\tfor (let key in data) {\n\t\tif (data[key] && typeof data[key] === 'object') {\n\t\t\tif (Object.prototype.toString.call(data[key]) !== '[object Function]') {\n\t\t\t\treturn true\n\t\t\t}\n\t\t}\n\t}\n}\n\nconst isFunctionOrUndefined = data => {\n\tfor (let key in data) {\n\t\tif (data[key] === undefined) {\n\t\t\treturn true\n\t\t} else if (data[key] && Object.prototype.toString.call(data[key]) === '[object Function]') {\n\t\t\treturn true\n\t\t} else if (data[key] && typeof data[key] === 'object') {\n\t\t\tif (isFunctionOrUndefined(data[key])) return true\n\t\t}\n\t}\n}\n\nconst cloneDeepObj = obj => {\n\tif (obj === undefined) {\n\t\tthrow new TypeError('param is not undefined')\n\t}\n\tif (!isObjectValue(obj)) {\n\t\treturn { ...obj }\n\t}\n\tif (!isFunctionOrUndefined(obj)) {\n\t\treturn JSON.parse(JSON.stringify(obj))\n\t}\n\treturn cloneDeep(obj)\n}\n\nconst testCloneDeepObj = () => {\n\tconst obj = {\n\t\tname: 'jack',\n\t\tage: 18,\n\t\thobby: { swiming: '\u6e38\u6cf3' },\n\t\tarr: [{ score: 98 }],\n\t\tsay: function(){console.log(this.name)},\n\t\tnumber: undefined,\n\t}\n\tconst cloneObj = cloneDeepObj(obj)\n\tcloneObj.name = 'rose'\n\tcloneObj.age = 20\n\tcloneObj.hobby.swiming = '\u4e0d\u4f1a\u6e38\u6cf3'\n\tcloneObj.arr[0].score = 100\n\tconsole.log('obj :', obj, '\\n cloneObj :', cloneObj)\n\tcloneObj.say()\n\tobj.say()\n}\n\ntestCloneDeepObj()<\/code><\/pre>\n
    \u539f\u6587 isFunctionOrUndefined<\/code> \u9012\u5f52\u65f6\u6ca1\u6709 return<\/code>\uff0c\u5d4c\u5957\u7684 Function \/ undefined \u4f1a\u67e5\u6f0f\uff1b\u4e0a\u9762\u8865\u4e0a\u4e86\u8fd4\u56de\u503c\u3002<\/p>\n
    \n
    \u4e00\u53e5\u8bdd\u603b\u7ed3\uff1a\u6d45\u62f7\u8d1d\u53ea\u65ad\u6700\u5916\u4e00\u5c42\u5f15\u7528\uff0c\u6df1\u62f7\u8d1d\u8981\u8fde\u5806\u91cc\u7684\u5d4c\u5957\u5bf9\u8c61\u4e00\u8d77\u65b0\u5efa\uff1bJSON \u4f1a\u4e22\u51fd\u6570\u548c undefined\uff0c\u4e00\u5c42\u5c55\u5f00\u4e0d\u591f\u5c31\u9012\u5f52\u3002<\/strong><\/p>\n<\/blockquote>\n<\/section>\n","protected":false},"excerpt":{"rendered":"
    \u6df1\u62f7\u8d1d\u548c\u6d45\u62f7\u8d1d\u662f\u9762\u8bd5\u9ad8\u9891\u9898\uff0c\u8003\u7684\u662f\u4f60\u5bf9\u57fa\u672c\u7c7b\u578b \u548c \u5f15\u7528\u7c7b\u578b \u5728\u5185\u5b58\u91cc\u600e\u4e48\u653e\u7684\u7406\u89e3\u3002 \u62f7\u8d1d\u7684\u76ee\u6807\u5f88\u660e\u786e\uff1a\u4ece o […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[109,105],"tags":[150],"_links":{"self":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/3319"}],"collection":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3319"}],"version-history":[{"count":3,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/3319\/revisions"}],"predecessor-version":[{"id":3337,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/3319\/revisions\/3337"}],"wp:attachment":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3319"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3319"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3319"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}