{"id":170241,"date":"2024-05-08T17:03:22","date_gmt":"2024-05-08T09:03:22","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/170241.html"},"modified":"2024-05-08T17:03:42","modified_gmt":"2024-05-08T09:03:42","slug":"javascript-%e7%a8%8b%e5%ba%8f%e4%b8%ad%e5%a6%82%e4%bd%95%e9%80%9a%e8%bf%87-object-%e5%88%9b%e5%bb%ba%e5%91%bd%e5%90%8d%e7%a9%ba%e9%97%b4","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/170241.html","title":{"rendered":"JavaScript \u7a0b\u5e8f\u4e2d\u5982\u4f55\u901a\u8fc7 Object \u521b\u5efa\u547d\u540d\u7a7a\u95f4"},"content":{"rendered":"

\"JavaScript<\/p>\n

\u901a\u8fc7Object\u521b\u5efa\u547d\u540d\u7a7a\u95f4\u5728JavaScript\u7a0b\u5e8f\u4e2d\u662f\u4e00\u4e2a\u91cd\u8981\u5b9e\u8df5\uff0c\u5b83\u5141\u8bb8\u5f00\u53d1\u8005\u7ec4\u7ec7\u4ee3\u7801\u3001\u907f\u514d\u5168\u5c40\u6c61\u67d3\u3001\u63d0\u9ad8\u4ee3\u7801\u6a21\u5757\u5316<\/strong>\u3002\u5728JavaScript\u4e2d\uff0c\u521b\u5efa\u547d\u540d\u7a7a\u95f4\u901a\u5e38\u6d89\u53ca\u5b9a\u4e49\u4e00\u4e2a\u5168\u5c40\u5bf9\u8c61\u4f5c\u4e3a\u4f60\u5e94\u7528\u6216\u5e93\u7684\u9876\u7ea7\u5bb9\u5668\u3002\u4f8b\u5982\uff0c\u5982\u679c\u60a8\u6b63\u5728\u7f16\u5199\u4e00\u4e2a\u540d\u4e3a"MyApp"\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u60a8\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u540c\u540d\u7684\u5168\u5c40\u5bf9\u8c61\uff0c\u5e76\u5c06\u6240\u6709\u76f8\u5173\u529f\u80fd\u548c\u6570\u636e\u9644\u52a0\u5230\u8fd9\u4e2a\u5bf9\u8c61\u3002\u8fd9\u79cd\u505a\u6cd5\u7b80\u5316\u4e86\u529f\u80fd\u5206\u7ec4\uff0c\u5e76\u6709\u52a9\u4e8e\u9632\u6b62\u547d\u540d\u51b2\u7a81<\/strong>\u3002\u4e0b\u9762\u5c06\u5c55\u5f00\u8be6\u7ec6\u63cf\u8ff0\u5982\u4f55\u4f7f\u7528\u5bf9\u8c61\u5b57\u9762\u91cf\u6765\u521b\u5efa\u548c\u4f7f\u7528\u547d\u540d\u7a7a\u95f4\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u521b\u5efa\u57fa\u7840\u547d\u540d\u7a7a\u95f4<\/h3>\n<\/p>\n

\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u5168\u5c40\u5bf9\u8c61\u6765\u4f5c\u4e3a\u547d\u540d\u7a7a\u95f4\u7684\u57fa\u7840\u3002\u8fd9\u4e2a\u5bf9\u8c61\u901a\u5e38\u662f\u4e00\u4e2a\u7a7a\u5bf9\u8c61\u6216\u8005\u5e26\u6709\u4e00\u4e9b\u521d\u59cb\u5c5e\u6027\u548c\u65b9\u6cd5\u7684\u5bf9\u8c61\u3002<\/p>\n<\/p>\n

\/\/ \u521b\u5efa\u4e00\u4e2a\u540d\u4e3a MyApp \u7684\u7a7a\u5bf9\u8c61<\/p>\n
var MyApp = MyApp || {};<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u91cc\u4f7f\u7528\u4e86||<\/code>\u64cd\u4f5c\u7b26\u6765\u786e\u4fdd\u5982\u679cMyApp<\/code>\u5df2\u7ecf\u5728\u5168\u5c40\u4f5c\u7528\u57df\u4e2d\u88ab\u5b9a\u4e49\u8fc7\uff0c\u90a3\u4e48\u6211\u4eec\u5c31\u4f7f\u7528\u90a3\u4e2a\u73b0\u6210\u7684\u5bf9\u8c61\u3002\u5982\u679c\u5c1a\u672a\u5b9a\u4e49\uff0c\u5c31\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u7a7a\u5bf9\u8c61\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u6dfb\u52a0\u5c5e\u6027\u548c\u65b9\u6cd5<\/h3>\n<\/p>\n
\u6709\u4e86\u57fa\u7840\u547d\u540d\u7a7a\u95f4\u4e4b\u540e\uff0c\u53ef\u4ee5\u5411\u5176\u4e2d\u6dfb\u52a0\u5c5e\u6027\u548c\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
\/\/ \u5728 MyApp \u547d\u540d\u7a7a\u95f4\u4e0b\u6dfb\u52a0\u4e00\u4e2a\u5c5e\u6027<\/p>\n
MyApp.version = "1.0.0";<\/p>\n
\/\/ \u6dfb\u52a0\u4e00\u4e2a\u65b9\u6cd5<\/p>\n
MyApp.initialize = function() {<\/p>\n
    console.log("\u5e94\u7528\u7a0b\u5e8f\u521d\u59cb\u5316");<\/p>\n
};<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u6837\uff0c\u6211\u4eec\u5c31\u5728MyApp<\/code>\u547d\u540d\u7a7a\u95f4\u4e2d\u521b\u5efa\u4e86\u4e00\u4e2a\u7248\u672c\u53f7\u5c5e\u6027\u548c\u4e00\u4e2a\u521d\u59cb\u5316\u5e94\u7528\u7a0b\u5e8f\u7684\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u6784\u5efa\u5d4c\u5957\u547d\u540d\u7a7a\u95f4<\/h3>\n<\/p>\n
\u5bf9\u4e8e\u66f4\u590d\u6742\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u53ef\u80fd\u9700\u8981\u521b\u5efa\u5d4c\u5957\u7684\u547d\u540d\u7a7a\u95f4\u4ee5\u8fdb\u4e00\u6b65\u7ec4\u7ec7\u4ee3\u7801\u3002<\/p>\n<\/p>\n
\/\/ \u521b\u5efa\u5d4c\u5957\u547d\u540d\u7a7a\u95f4<\/p>\n
MyApp.utils = MyApp.utils || {};<\/p>\n
MyApp.models = MyApp.models || {};<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u91cc\uff0c\u6211\u4eec\u5728MyApp<\/code>\u4e0b\u8fdb\u4e00\u6b65\u521b\u5efa\u4e86utils<\/code>\u548cmodels<\/code>\u8fd9\u4e24\u4e2a\u547d\u540d\u7a7a\u95f4\u3002<\/p>\n<\/p>\n
\u56db\u3001\u5728\u547d\u540d\u7a7a\u95f4\u4e2d\u5d4c\u5957\u51fd\u6570<\/h3>\n<\/p>\n
\u5728\u5d4c\u5957\u7684\u547d\u540d\u7a7a\u95f4\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u5b9a\u4e49\u7279\u5b9a\u4e8e\u8be5\u90e8\u5206\u7684\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
\/\/ \u5728 utils \u547d\u540d\u7a7a\u95f4\u4e0b\u5b9a\u4e49\u4e00\u4e2a\u65b9\u6cd5<\/p>\n
MyApp.utils.calculateTax = function(price) {<\/p>\n
    var taxRate = 0.05;<\/p>\n
    return price * taxRate;<\/p>\n
};<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0ccalculateTax<\/code>\u51fd\u6570\u88ab\u653e\u5728\u4e86MyApp.utils<\/code>\u547d\u540d\u7a7a\u95f4\u4e0b\uff0c\u907f\u514d\u4e86\u51b2\u7a81\u3002<\/p>\n<\/p>\n
\u4e94\u3001\u5c01\u88c5\u79c1\u6709\u6210\u5458<\/h3>\n<\/p>\n
\u6211\u4eec\u8fd8\u53ef\u4ee5\u5728\u547d\u540d\u7a7a\u95f4\u4e2d\u5c01\u88c5\u79c1\u6709\u6210\u5458\uff0c\u4ee5\u9690\u85cf\u4e0d\u60f3\u8981\u66b4\u9732\u7ed9\u5916\u90e8\u4f7f\u7528\u7684\u7ec6\u8282\u3002<\/p>\n<\/p>\n
MyApp.data = (function() {<\/p>\n
    \/\/ \u79c1\u6709\u53d8\u91cf<\/p>\n
    var privateVar = "\u79c1\u6709\u6570\u636e";<\/p>\n
    \/\/ \u516c\u5f00\u7684API<\/p>\n
    return {<\/p>\n
        getPrivateVar: function() {<\/p>\n
            return privateVar;<\/p>\n
        }<\/p>\n
    };<\/p>\n
})();<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u91cc\uff0cprivateVar<\/code>\u4e0d\u4f1a\u88ab\u5916\u90e8\u76f4\u63a5\u8bbf\u95ee\uff0c\u53ea\u80fd\u901a\u8fc7\u66b4\u9732\u7684getPrivateVar<\/code>\u65b9\u6cd5\u6765\u83b7\u53d6\u3002<\/p>\n<\/p>\n
\u516d\u3001\u5229\u7528\u51fd\u6570\u4f5c\u7528\u57df\u521b\u5efa\u547d\u540d\u7a7a\u95f4<\/h3>\n<\/p>\n
\u6709\u65f6\u5019\u6211\u4eec\u53ef\u80fd\u9700\u8981\u66f4\u590d\u6742\u7684\u5c01\u88c5\uff0c\u53ef\u4ee5\u4f7f\u7528\u51fd\u6570\u4f5c\u7528\u57df\u6765\u8fbe\u5230\u8fd9\u4e2a\u76ee\u7684\u3002<\/p>\n<\/p>\n
(function() {<\/p>\n
    \/\/ \u79c1\u6709\u53d8\u91cf\u548c\u51fd\u6570<\/p>\n
    var privateVar = "\u79c1\u6709";<\/p>\n
    function privateFunc() {<\/p>\n
        console.log(privateVar);<\/p>\n
    }<\/p>\n
    \/\/ \u5728\u5168\u5c40\u547d\u540d\u7a7a\u95f4\u4e2d\u66b4\u9732\u63a5\u53e3<\/p>\n
    MyApp.module = {<\/p>\n
        publicMethod: function() {<\/p>\n
            privateFunc();<\/p>\n
        }<\/p>\n
    };<\/p>\n
})();<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u901a\u8fc7\u81ea\u6267\u884c\u51fd\u6570\u521b\u5efa\u4e86\u4e00\u4e2a\u65b0\u7684\u4f5c\u7528\u57df\uff0c\u5176\u4e2d\u7684\u53d8\u91cf\u548c\u51fd\u6570\u90fd\u4e0d\u4f1a\u6c61\u67d3\u5168\u5c40\u547d\u540d\u7a7a\u95f4\uff0c\u4f46\u6211\u4eec\u4f9d\u7136\u53ef\u4ee5\u901a\u8fc7MyApp.module.publicMethod<\/code>\u6765\u8bbf\u95eeprivateFunc<\/code>\u3002<\/p>\n<\/p>\n
\u4e03\u3001\u4f7f\u7528ES6\u6a21\u5757<\/h3>\n<\/p>\n
\u968f\u7740ES6\u7684\u5f15\u5165\uff0c\u6a21\u5757\u5316\u6210\u4e3a\u4e86JavaScript\u5b98\u65b9\u652f\u6301\u7684\u7279\u6027\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528import<\/code>\u548cexport<\/code>\u8bed\u6cd5\u6765\u7ec4\u7ec7\u4ee3\u7801\uff0c\u4e0e\u547d\u540d\u7a7a\u95f4\u8fbe\u5230\u7c7b\u4f3c\u7684\u6548\u679c\u3002<\/p>\n<\/p>\n
\/\/ utils.js<\/p>\n
export function calculateTax(price) {<\/p>\n
    var taxRate = 0.05;<\/p>\n
    return price * taxRate;<\/p>\n
}<\/p>\n
\/\/ mAI<\/a>n.js<\/p>\n
import * as utils from '.\/utils';<\/p>\n
console.log(utils.calculateTax(100));<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u4f7f\u7528ES6\u6a21\u5757\uff0c\u6211\u4eec\u4e0d\u4ec5\u53ef\u4ee5\u5c06\u4ee3\u7801\u5206\u5272\u5230\u4e0d\u540c\u7684\u6587\u4ef6\uff0c\u8fd8\u53ef\u4ee5\u6309\u9700\u5bfc\u5165\u548c\u5bfc\u51fa\u529f\u80fd\u3002<\/p>\n<\/p>\n
\u516b\u3001\u603b\u7ed3<\/h3>\n<\/p>\n
\u4f7f\u7528Object\u521b\u5efa\u547d\u540d\u7a7a\u95f4\u6709\u5229\u4e8e\u4ee3\u7801\u7684\u7ec4\u7ec7\u548c\u7ef4\u62a4\u3002\u5b83\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u4f18\u5316\u5168\u5c40\u4f5c\u7528\u57df\u7ba1\u7406\u3001\u51cf\u5c11\u547d\u540d\u51b2\u7a81\u7684\u53ef\u80fd\u6027<\/strong>\u3002\u5c3d\u7ba1ES6\u6a21\u5757\u5728\u73b0\u4ee3\u5316\u5f00\u53d1\u73af\u5883\u4e2d\u65e5\u76ca\u666e\u53ca\uff0c\u4f46\u4e86\u89e3\u5982\u4f55\u4f7f\u7528Object\u521b\u5efa\u547d\u540d\u7a7a\u95f4\u4ecd\u7136\u6709\u5b83\u7684\u503c\u5f97\u3002\u8fd9\u4e9b\u65b9\u6cd5\u5728\u4e0d\u652f\u6301\u6a21\u5757\u5316\u7684\u65e7\u9879\u76ee\u6216\u73af\u5883\u4e2d\u5c24\u5176\u6709\u7528\u3002\u901a\u8fc7\u9002\u5f53\u4f7f\u7528\u547d\u540d\u7a7a\u95f4\uff0c\u6211\u4eec\u53ef\u4ee5\u5b9e\u73b0\u66f4\u6e05\u6670\u3001\u66f4\u6a21\u5757\u5316\u7684\u4ee3\u7801\u7ed3\u6784\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
Q1: \u5728 JavaScript \u7a0b\u5e8f\u4e2d\uff0c\u5982\u4f55\u5229\u7528 Object \u521b\u5efa\u547d\u540d\u7a7a\u95f4\uff1f<\/strong>
\nA1: \u5728 JavaScript \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 Object \u5bf9\u8c61\u6765\u6a21\u62df\u521b\u5efa\u547d\u540d\u7a7a\u95f4\u7684\u6982\u5ff5\u3002\u901a\u8fc7\u521b\u5efa\u4e00\u4e2a\u5bf9\u8c61\uff0c\u5e76\u7ed9\u5b83\u6dfb\u52a0\u5c5e\u6027\u548c\u65b9\u6cd5\uff0c\u5c31\u53ef\u4ee5\u5c06\u8fd9\u4e9b\u5c5e\u6027\u548c\u65b9\u6cd5\u89c6\u4e3a\u547d\u540d\u7a7a\u95f4\u4e2d\u7684\u6210\u5458\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u540d\u4e3aMyNamespace\u7684\u547d\u540d\u7a7a\u95f4\u5bf9\u8c61\uff0c\u7136\u540e\u901a\u8fc7MyNamespace\u6765\u8bbf\u95ee\u5b83\u7684\u6210\u5458\u3002<\/p>\n
Q2: \u6709\u591a\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5728 JavaScript \u7a0b\u5e8f\u4e2d\u521b\u5efa\u547d\u540d\u7a7a\u95f4\u3002\u5982\u4f55\u4f7f\u7528 Object \u5bf9\u8c61\u5b9e\u73b0\u547d\u540d\u7a7a\u95f4\uff1f<\/strong>
\nA2: \u4f7f\u7528 Object \u5bf9\u8c61\u6765\u521b\u5efa\u547d\u540d\u7a7a\u95f4\u7684\u4e00\u79cd\u65b9\u6cd5\u662f\u521b\u5efa\u4e00\u4e2a\u5168\u5c40\u5bf9\u8c61\uff0c\u7136\u540e\u5c06\u547d\u540d\u7a7a\u95f4\u7684\u6210\u5458\u6dfb\u52a0\u4e3a\u8be5\u5168\u5c40\u5bf9\u8c61\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u3002\u8fd9\u6837\uff0c\u6240\u6709\u7684\u6210\u5458\u5c31\u90fd\u5c5e\u4e8e\u8fd9\u4e2a\u547d\u540d\u7a7a\u95f4\uff0c\u53ef\u4ee5\u901a\u8fc7\u547d\u540d\u7a7a\u95f4\u5bf9\u8c61\u6765\u8bbf\u95ee\u3002<\/p>\n
Q3: JavaScript \u7a0b\u5e8f\u4e2d\uff0c\u5982\u4f55\u5229\u7528 Object \u5b9e\u73b0\u66f4\u7075\u6d3b\u7684\u547d\u540d\u7a7a\u95f4\u8bbe\u8ba1\uff1f<\/strong>
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