{"id":3249,"date":"2021-01-13T11:13:57","date_gmt":"2021-01-13T03:13:57","guid":{"rendered":"http:\/\/www.salesforcecrm.cn\/?p=3249"},"modified":"2021-01-13T11:13:57","modified_gmt":"2021-01-13T03:13:57","slug":"%e9%80%82%e7%94%a8%e4%ba%8eaura%e5%bc%80%e5%8f%91%e4%ba%ba%e5%91%98%e7%9a%84lightning-web-components-%e8%bf%81%e7%a7%bbjavascript","status":"publish","type":"post","link":"http:\/\/www.ponybai.com\/?p=3249","title":{"rendered":"\u9002\u7528\u4e8eAura\u5f00\u53d1\u4eba\u5458\u7684Lightning Web Components &#8211; \u8fc1\u79fbJavaScript"},"content":{"rendered":"<div class=\"nested0\">\n<h2 id=\"Tdxn4tBK-heading1\" class=\"helpHead2\">\u5b66\u4e60\u76ee\u6807<\/h2>\n<div class=\"body conbody\">\n<div class=\"p\">\n<p>\u5b8c\u6210\u672c\u5355\u5143\u540e\uff0c\u60a8\u5c06\u80fd\u591f\uff1a<\/p>\n<ul class=\"ul bulletList\">\n<li class=\"li\">\u5c06JavaScript\u4eceAura\u7ec4\u4ef6\u8fc1\u79fb\u5230Lightning Web\u7ec4\u4ef6\u3002<\/li>\n<li class=\"li\">\u5728Aura\u7ec4\u4ef6\u548cLightning Web\u7ec4\u4ef6\u4e4b\u95f4\u5171\u4eab\u4ee3\u7801\u3002<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<div id=\"migrate-javascript-use-modules\" class=\"topic concept nested0\" lang=\"en-us\" xml:lang=\"en-us\">\n<p><a name=\"migrate-javascript-use-modules\"><\/a><\/p>\n<h2 id=\"Tdxn4tBK-heading2\" class=\"helpHead2\">\u4f7f\u7528JavaScript\u6a21\u5757<\/h2>\n<div class=\"body conbody\">\n<p class=\"p\">JavaScript\u662fLightning Web\u7ec4\u4ef6\u7684\u5fc3\u810f\u3002\u6ca1\u6709JavaScript\uff0c\u7ec4\u4ef6\u5c31\u662f\u6beb\u65e0\u751f\u6c14\u7684\u4e3b\u8981\u662fHTML\u3002\u5f53\u6211\u4eec\u770b\u5230Aura\u7ec4\u4ef6\u4e2d\u7684\u5c5e\u6027\u5982\u4f55\u6620\u5c04\u5230JavaScript\u5c5e\u6027\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u7aa5\u89c1\u4e0a\u4e00\u4e2a\u5355\u5143\u4e2d\u7684Lightning Web\u7ec4\u4ef6\u4e2d\u7684JavaScript\u6587\u4ef6\u3002\u73b0\u5728\uff0c\u6211\u4eec\u66f4\u6df1\u5165\u5730\u7814\u7a76JavaScript\u6587\u4ef6\u3002<\/p>\n<p class=\"p\">\u5c06JavaScript\u4ee3\u7801\u4eceAura\u7ec4\u4ef6\u4e2d\u5355\u72ec\u7684\u5ba2\u6237\u7aef\u63a7\u5236\u5668\uff0c\u5e2e\u52a9\u7a0b\u5e8f\u548c\u6e32\u67d3\u5668\u6587\u4ef6\u8fc1\u79fb\u5230Lightning Web\u7ec4\u4ef6\u4e2d\u7684\u4e00\u4e2aJavaScript\u6587\u4ef6\u3002<\/p>\n<p class=\"p\">Aura\u7ec4\u4ef6\u4e2d\u7684\u5ba2\u6237\u7aef\u63a7\u5236\u5668\u662f\u5bf9\u8c61\u6587\u5b57\u8868\u793a\u5f62\u5f0f\u7684JavaScript\u5bf9\u8c61\uff0c\u5176\u4e2d\u5305\u542b\u540d\u79f0-\u503c\u5bf9\u7684\u6620\u5c04\u3002\u597d\u591a\u8bdd\u3002\u8ba9\u6211\u4eec\u770b\u4e00\u4e0b<span class=\"ph filepath\">PropertyPaginatorController.js<\/span>\u6587\u4ef6\u4e2d\u7684\u793a\u4f8b\uff1a<\/p>\n<div class=\"codeblock\">\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span>\n\tpreviousPage <span class=\"token operator\">:<\/span> <span class=\"token function\">function<\/span><span class=\"token punctuation\">(<\/span>component<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n        <span class=\"token keyword\">var<\/span> pageChangeEvent <span class=\"token operator\">=<\/span> component<span class=\"token punctuation\">.<\/span><span class=\"token function\">getEvent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"pagePrevious\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        pageChangeEvent<span class=\"token punctuation\">.<\/span><span class=\"token function\">fire<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\n    \n\tnextPage <span class=\"token operator\">:<\/span> <span class=\"token function\">function<\/span><span class=\"token punctuation\">(<\/span>component<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n        <span class=\"token keyword\">var<\/span> pageChangeEvent <span class=\"token operator\">=<\/span> component<span class=\"token punctuation\">.<\/span><span class=\"token function\">getEvent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"pageNext\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        pageChangeEvent<span class=\"token punctuation\">.<\/span><span class=\"token function\">fire<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p class=\"p\">Aura\u7ec4\u4ef6\u4e2dJavaScript\u6587\u4ef6\u7684\u683c\u5f0f\u662f\u5728\u5c06ES6\u6807\u51c6\uff08\u4f8b\u5982JavaScript\u7c7b\u548c\u6a21\u5757\uff09\u7528\u4e8e\u529f\u80fd\u6807\u51c6\u5316\u4e4b\u524d\u8bbe\u8ba1\u7684\u3002<\/p>\n<p class=\"p\">Lightning Web\u7ec4\u4ef6\u4e2d\u7684JavaScript\u6587\u4ef6\u662fES6\u6a21\u5757\uff0c\u56e0\u6b64\u60a8\u4f7f\u7528\u7684\u662f\u6807\u51c6JavaScript\uff0c\u800c\u4e0d\u662fAura\u7ec4\u4ef6\u4e2d\u4f7f\u7528\u7684\u4e13\u6709\u683c\u5f0f\u3002\u60a8\u7f16\u5199\u7684JavaScript\u770b\u8d77\u6765\u4e0e\u60a8\u4e3a\u5176\u4ed6\u4efb\u4f55\u73b0\u4ee3JavaScript\u6846\u67b6\u7f16\u5199\u7684JavaScript\u76f8\u4f3c\u3002<\/p>\n<p class=\"p\">\u8fd9\u662f\u7c7b\u4f3c\u7684JavaScript\u00a0<samp>\u5206\u9875\u5668<\/samp>\u00a0\u95ea\u7535\u7f51\u7edc\u7ec4\u4ef6\u3002<\/p>\n<div class=\"codeblock\">\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token class-name\">LightningElement<\/span><span class=\"token punctuation\">,<\/span> api <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'lwc'<\/span><span class=\"token punctuation\">;<\/span>\nexport <span class=\"token keyword\">default<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Paginator<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">LightningElement<\/span> <span class=\"token punctuation\">{<\/span>\n    <span class=\"token comment\">\/** The current page number. *\/<\/span>\n    <span class=\"token annotation punctuation\">@api<\/span> pageNumber<span class=\"token punctuation\">;<\/span>\n    <span class=\"token comment\">\/** The number of items on a page. *\/<\/span>\n    <span class=\"token annotation punctuation\">@api<\/span> pageSize<span class=\"token punctuation\">;<\/span>\n    <span class=\"token comment\">\/** The total number of items in the list. *\/<\/span>\n    <span class=\"token annotation punctuation\">@api<\/span> totalItemCount<span class=\"token punctuation\">;<\/span>\n    <span class=\"token function\">previousHandler<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">dispatchEvent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">CustomEvent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'previous'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n    <span class=\"token function\">nextHandler<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">dispatchEvent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">CustomEvent<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'next'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n    get <span class=\"token function\">currentPageNumber<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>totalItemCount <span class=\"token operator\">==<\/span><span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span> <span class=\"token operator\">?<\/span> <span class=\"token number\">0<\/span> <span class=\"token operator\">:<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>pageNumber<span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n    get <span class=\"token function\">isFirstPage<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>pageNumber <span class=\"token operator\">==<\/span><span class=\"token operator\">=<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n    get <span class=\"token function\">isLastPage<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>pageNumber <span class=\"token operator\">&gt;=<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>totalPages<span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n    get <span class=\"token function\">totalPages<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n        <span class=\"token keyword\">return<\/span> <span class=\"token class-name\">Math<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">ceil<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>totalItemCount <span class=\"token operator\">\/<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>pageSize<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p class=\"p\">\u6211\u4eec\u4e0d\u4f1a\u770b\u6bcf\u4e00\u884c\u4ee3\u7801\u3002\u4e3b\u8981\u7684\u6536\u83b7\u662fLightning Web\u7ec4\u4ef6\u4f7f\u7528\u6807\u51c6\u7684JavaScript\u6a21\u5757\u3002\u8fd9\u662f\u597d\u4e8b\uff01<\/p>\n<\/div>\n<\/div>\n<div id=\"migrate-javascript-share-code\" class=\"topic concept nested0\" lang=\"en-us\" xml:lang=\"en-us\">\n<p><a name=\"migrate-javascript-share-code\"><\/a><\/p>\n<h2 id=\"Tdxn4tBK-heading3\" class=\"helpHead2\">\u5728Aura\u7ec4\u4ef6\u548cLightning Web\u7ec4\u4ef6\u4e4b\u95f4\u5171\u4eab\u4ee3\u7801<\/h2>\n<div class=\"body conbody\">\n<p class=\"p\">\u8981\u5728Lightning Web\u7ec4\u4ef6\u548cAura\u7ec4\u4ef6\u4e4b\u95f4\u5171\u4eabJavaScript\u4ee3\u7801\uff0c\u8bf7\u5c06\u4ee3\u7801\u653e\u5728ES6\u6a21\u5757\u4e2d\u3002\u4e24\u79cd\u7f16\u7a0b\u6a21\u578b\u90fd\u53ef\u4ee5\u8bbf\u95ee\u5171\u4eab\u4ee3\u7801\u3002\u5373\u4f7f\u60a8\u6ca1\u6709\u5c06\u6240\u6709\u4ee3\u7801\u90fd\u79fb\u81f3Lightning Web\u7ec4\u4ef6\uff0c\u60a8\u4ecd\u7136\u53ef\u4ee5\u8bbf\u95ee\u5728Aura\u7ec4\u4ef6\u7684ES6\u6a21\u5757\u4e2d\u7f16\u5199\u7684\u65b0\u529f\u80fd\u3002<\/p>\n<p class=\"p\">\u8ba9\u6211\u4eec\u770b\u4e00\u4e2a<span class=\"ph filepath\">utils.js<\/span>\u00a0ES6\u6a21\u5757\u7684\u793a\u4f8b\u3002<\/p>\n<div class=\"codeblock\">\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token comment\">\/* utils.js *\/<\/span>\n<span class=\"token comment\">\/**\n * Returns whether provided value is a function\n * @param {*} value - the value to be checked\n * @return {boolean} true if the value is a function, false otherwise\n *\/<\/span>\nexport function <span class=\"token function\">isFunction<\/span><span class=\"token punctuation\">(<\/span>value<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n    <span class=\"token keyword\">return<\/span> typeof value <span class=\"token operator\">==<\/span><span class=\"token operator\">=<\/span> <span class=\"token string\">'function'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p class=\"p\">\u7684\u00a0<samp>\u5b9e\u7528\u7a0b\u5e8f<\/samp>\u00a0\u6a21\u5757\u5bfc\u51fa\u4e00\u4e2a\u00a0<samp>isFunction\uff08\uff09<\/samp>\u00a0\u8fd4\u56de\u63d0\u4f9b\u7684\u53c2\u6570\u662f\u5426\u4e3a\u51fd\u6570\u7684\u51fd\u6570\u3002<\/p>\n<p class=\"p\">\u8fd9\u662f\u4e00\u4e2a\u00a0<samp>c-libcaller<\/samp>\u00a0\u4f7f\u7528\u4ee5\u4e0b\u5185\u5bb9\u7684Lightning Web\u7ec4\u4ef6\u00a0<samp>\u5b9e\u7528\u7a0b\u5e8f<\/samp>\u00a0\u6a21\u5757\u3002<\/p>\n<div class=\"codeblock\">\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token comment\">\/* libcaller.js *\/<\/span>\n<span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token class-name\">LightningElement<\/span> <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'lwc'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token comment\">\/\/ import the library<\/span>\n<span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> isFunction <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'c\/utils'<\/span><span class=\"token punctuation\">;<\/span>\nexport <span class=\"token keyword\">default<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">LibCaller<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">LightningElement<\/span> <span class=\"token punctuation\">{<\/span>\n    result<span class=\"token punctuation\">;<\/span>\n    \n    <span class=\"token function\">checkType<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n        <span class=\"token comment\">\/\/ Call the imported library function<\/span>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>result <span class=\"token operator\">=<\/span> <span class=\"token function\">isFunction<\/span><span class=\"token punctuation\">(<\/span>\n            <span class=\"token function\">function<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n                console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'I am a function'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token punctuation\">}<\/span>\n        <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> \n    <span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p class=\"p\">\u7684\u00a0<samp>c-libcaller<\/samp>\u00a0\u7ec4\u4ef6\u5bfc\u5165\u00a0<samp>\u5b9e\u7528\u7a0b\u5e8f<\/samp>\u00a0\u6a21\u5757\u5e76\u8c03\u7528\u00a0<samp>isFunction<\/samp>\u6a21\u5757\u5bfc\u51fa\u7684\u51fd\u6570\u3002\u8bba\u70b9\u4f20\u9012\u7ed9<samp>isFunction<\/samp>\u00a0\u662f\u4e00\u4e2a\u51fd\u6570\uff0c\u56e0\u6b64\u7ed3\u679c\u8bbe\u7f6e\u4e3a\u00a0<samp>\u771f\u6b63<\/samp>\u3002<\/p>\n<p class=\"p\">\u73b0\u5728\uff0c\u8ba9\u6211\u4eec\u770b\u4e00\u4e2a<span class=\"ph filepath\">libcallerAura.cmp<\/span>\u6587\u4ef6\uff0c\u8be5\u6587\u4ef6\u4e5f\u4f7f\u7528<samp>\u5b9e\u7528\u7a0b\u5e8f<\/samp>\u00a0\u6a21\u5757\u3002<\/p>\n<div class=\"codeblock\">\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token operator\">&lt;<\/span>aura<span class=\"token operator\">:<\/span>component<span class=\"token operator\">&gt;<\/span>\n    <span class=\"token operator\">&lt;<\/span>aura<span class=\"token operator\">:<\/span>handler name<span class=\"token operator\">=<\/span><span class=\"token string\">\"init\"<\/span> value<span class=\"token operator\">=<\/span><span class=\"token string\">\"{!this}\"<\/span> action<span class=\"token operator\">=<\/span><span class=\"token string\">\"{!c.doInit}\"<\/span><span class=\"token operator\">\/<\/span><span class=\"token operator\">&gt;<\/span>\n    <span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span>p<span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token class-name\">Aura<\/span> component calling the utils lib<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>p<span class=\"token operator\">&gt;<\/span>\n    <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">!<\/span><span class=\"token operator\">--<\/span> add the lib component <span class=\"token operator\">--<\/span><span class=\"token operator\">&gt;<\/span>\n    <span class=\"token operator\">&lt;<\/span>c<span class=\"token operator\">:<\/span>utils aura<span class=\"token operator\">:<\/span>id<span class=\"token operator\">=<\/span><span class=\"token string\">\"utils\"<\/span> <span class=\"token operator\">\/<\/span><span class=\"token operator\">&gt;<\/span>\n<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>aura<span class=\"token operator\">:<\/span>component<span class=\"token operator\">&gt;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p class=\"p\">\u7684\u00a0<samp>libcaller\u5149\u73af<\/samp>\u00a0\u5149\u73af\u7ec4\u4ef6\u5305\u62ec\u5bf9\u00a0<samp>c\uff1a\u5de5\u5177<\/samp>ES6\u6a21\u5757\u3002\u6211\u4eec\u6dfb\u52a0\u4e86\u4e00\u4e2a<samp>\u5149\u73af\uff1aid<\/samp>\u00a0\u8fd9\u6837\u6211\u4eec\u5c31\u53ef\u4ee5\u5728JavaScript\u4ee3\u7801\u4e2d\u83b7\u5f97\u5bf9\u8be5\u6a21\u5757\u7684\u5f15\u7528\u3002<\/p>\n<p class=\"p\">\u8fd9\u662f<span class=\"ph filepath\">libcallerAuraController.js<\/span>\u6587\u4ef6\u3002<\/p>\n<div class=\"codeblock\">\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span>\n    doInit<span class=\"token operator\">:<\/span> <span class=\"token function\">function<\/span><span class=\"token punctuation\">(<\/span>cmp<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n        <span class=\"token comment\">\/\/ Call the lib here<\/span>\n        <span class=\"token keyword\">var<\/span> libCmp <span class=\"token operator\">=<\/span> cmp<span class=\"token punctuation\">.<\/span><span class=\"token function\">find<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'utils'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">var<\/span> result <span class=\"token operator\">=<\/span> libCmp<span class=\"token punctuation\">.<\/span><span class=\"token function\">isFunction<\/span><span class=\"token punctuation\">(<\/span>\n            <span class=\"token function\">function<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n                console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\" I am a function\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token punctuation\">}<\/span>\n        <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"Is it a function?: \"<\/span> <span class=\"token operator\">+<\/span> result<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p class=\"p\">\u7ec4\u4ef6\u7684\u63a7\u5236\u5668\u4f7f\u7528\u00a0<samp>cmp.find\uff08&#8217;utils&#8217;\uff09<\/samp>\u00a0\u5339\u914d\u00a0<samp>\u5149\u73af\uff1aid<\/samp>\u5728\u6807\u8bb0\u4e2d\u5e76\u83b7\u5f97\u5bf9\u8be5\u6a21\u5757\u7684\u5f15\u7528\u3002\u7684<samp>\u5b9e\u7528\u7a0b\u5e8f<\/samp>\u00a0ES6\u6a21\u5757\u5bfc\u51fa\u00a0<samp>isFunction\uff08\uff09<\/samp>\uff0c\u7531Aura\u7ec4\u4ef6\u8c03\u7528\u3002\u8bba\u70b9\u4f20\u9012\u7ed9<samp>isFunction\uff08\uff09<\/samp>\u00a0\u662f\u4e00\u4e2a\u51fd\u6570\uff0c\u56e0\u6b64\u7ed3\u679c\u8bbe\u7f6e\u4e3a\u00a0<samp>\u771f\u6b63<\/samp>\u3002<\/p>\n<\/div>\n<\/div>\n<div id=\"migrate-javascript-libraries\" class=\"topic concept nested0\" lang=\"en-us\" xml:lang=\"en-us\">\n<p><a name=\"migrate-javascript-libraries\"><\/a><\/p>\n<h2 id=\"Tdxn4tBK-heading4\" class=\"helpHead2\">\u4f7f\u7528\u7b2c\u4e09\u65b9JavaScript\u5e93<\/h2>\n<div class=\"body conbody\">\n<p class=\"p\">\u8981\u5728Aura\u7ec4\u4ef6\u6216Lightning Web\u7ec4\u4ef6\u4e2d\u4f7f\u7528\u7b2c\u4e09\u65b9JavaScript\u5e93\uff0c\u5fc5\u987b\u5c06\u5e93\u4f5c\u4e3a\u9759\u6001\u8d44\u6e90\u4e0a\u8f7d\u3002\u5728\u4e24\u79cd\u7f16\u7a0b\u6a21\u578b\u4e2d\uff0c\u4f7f\u7528\u9759\u6001\u8d44\u6e90\u7684\u8bed\u6cd5\u4e0d\u540c\u3002<\/p>\n<p class=\"p\">\u5728Aura\u7ec4\u4ef6\u4e2d\uff0c\u4f7f\u7528\u00a0<samp>&lt;ltng\uff1arequire&gt;<\/samp>\u00a0\u5728\u6807\u8bb0\u4e2d\u6dfb\u52a0\u6807\u7b7e\u4ee5\u52a0\u8f7d\u9759\u6001\u8d44\u6e90\u3002<\/p>\n<div class=\"codeblock\">\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token operator\">&lt;<\/span>ltng<span class=\"token operator\">:<\/span>require scripts<span class=\"token operator\">=<\/span><span class=\"token string\">\"{!$Resource.resourceName}\"<\/span>\n    afterScriptsLoaded<span class=\"token operator\">=<\/span><span class=\"token string\">\"{!c.afterScriptsLoaded}\"<\/span> <span class=\"token operator\">\/<\/span><span class=\"token operator\">&gt;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p class=\"p\"><samp><em class=\"ph i\">resourceName<\/em><\/samp>\u662f\u9759\u6001\u8d44\u6e90\u7684\u540d\u79f0\u3002\u7684<samp>afterScripts\u5df2\u52a0\u8f7d<\/samp>\u00a0\u52a0\u8f7d\u811a\u672c\u5e76\u5448\u73b0\u7ec4\u4ef6\u540e\uff0c\u5c06\u8c03\u7528\u5ba2\u6237\u7aef\u63a7\u5236\u5668\u4e2d\u7684action\u3002<\/p>\n<p class=\"p\">\u5728Lightning Web\u7ec4\u4ef6\u4e2d\uff0c\u4f7f\u7528JavaScript\u5bfc\u5165\u9759\u6001\u8d44\u6e90\u3002<\/p>\n<div class=\"codeblock\">\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token keyword\">import<\/span> <span class=\"token namespace\">resourceName<\/span> from <span class=\"token string\">'@salesforce\/resourceUrl\/resourceName'<\/span><span class=\"token punctuation\">;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p class=\"p\">\u7136\u540e\uff0c\u60a8\u4f7f\u7528\u00a0<samp>loadScript<\/samp>\u00a0\u548c\u00a0<samp>loadStyle<\/samp>\u00a0\u52a0\u8f7d\u7b2c\u4e09\u65b9\u5e93\u3002<\/p>\n<p class=\"p\">\u6709\u5173\u4f7f\u7528\u5bfc\u5165\u7684\u5e93\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u8bf7\u53c2\u9605\u300a\u00a0<cite class=\"cite\">Lightning Web Components\u5f00\u53d1\u4eba\u5458\u6307\u5357\u300b\u4e2d\u7684\u201c<\/cite>\u4f7f\u7528\u7b2c\u4e09\u65b9JavaScript\u5e93<cite class=\"cite\">\u201d<\/cite>\u3002<\/p>\n<\/div>\n<\/div>\n<div id=\"migrate-javascript-dynamic\" class=\"topic concept nested0\" lang=\"en-us\" xml:lang=\"en-us\">\n<p><a name=\"migrate-javascript-dynamic\"><\/a><\/p>\n<h2 id=\"Tdxn4tBK-heading5\" class=\"helpHead2\">\u52a8\u6001\u521b\u5efa\u7ec4\u4ef6<\/h2>\n<div class=\"body conbody\">\n<p class=\"p\">\u5728Aura\u7ec4\u4ef6\u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u5f0f\u5728JavaScript\u4e2d\u52a8\u6001\u521b\u5efa\u7ec4\u4ef6\uff1a\u00a0<samp>$ A.createComponent\uff08\uff09<\/samp>\u3002\u5728Lightning Web\u7ec4\u4ef6\u4e2d\u6ca1\u6709\u52a8\u6001\u521b\u5efa\u7ec4\u4ef6\u7684\u7b49\u6548\u9879\u3002<\/p>\n<p class=\"p\">\u8fd9\u4e2a\u4f53\u7cfb\u7ed3\u6784\u7684\u51b3\u5b9a\u662f\u6709\u610f\u7684\u3002\u4e0d\u5728Lightning Web\u7ec4\u4ef6\u4e2d\u590d\u5236\u6b64\u6a21\u5f0f\u7684\u4e3b\u8981\u539f\u56e0\u662fAura\u7ec4\u4ef6\u4e2d\u7684\u6a21\u5f0f\u5bfc\u81f4\u9519\u8bef\u548c\u6df7\u4e71\u7684\u4ee3\u7801\u3002<\/p>\n<p class=\"p\">Lightning Web\u7ec4\u4ef6\u4e2d\u66f4\u597d\u7684\u66ff\u4ee3\u65b9\u6cd5\u662f\u4e3a\u60a8\u7684\u7ec4\u4ef6\u521b\u5efa\u591a\u4e2aHTML\u6a21\u677f\u3002\u7ec4\u4ef6\u7684<samp>render\uff08\uff09<\/samp>\u8be5\u65b9\u6cd5\u53ef\u4ee5\u6839\u636e\u7ec4\u4ef6\u9700\u6c42\u5207\u6362\u6a21\u677f\u3002\u8fd9\u79cd\u6a21\u5f0f\u66f4\u7c7b\u4f3c\u4e8e\u5176\u4ed6JavaScript\u6846\u67b6\u4e2d\u4f7f\u7528\u7684\u8def\u7531\u62c6\u5206\u3002<\/p>\n<\/div>\n<\/div>\n<div id=\"migrate-javascript-refactor\" class=\"topic concept nested0\" lang=\"en-us\" xml:lang=\"en-us\">\n<p><a name=\"migrate-javascript-refactor\"><\/a><\/p>\n<h2 id=\"Tdxn4tBK-heading6\" class=\"helpHead2\">\u91cd\u6784\u7684\u673a\u4f1a<\/h2>\n<div class=\"body conbody\">\n<p class=\"p\">\u8fc1\u79fbJavaScript\u4ee3\u7801\u65f6\uff0c\u8bf7\u6ce8\u610f\uff0c\u5b83\u4e0d\u662f\u9010\u884c\u8f6c\u6362\u3002\u8fd9\u662f\u91cd\u65b0\u5ba1\u89c6\u7ec4\u4ef6\u8bbe\u8ba1\u7684\u597d\u673a\u4f1a\u3002<\/p>\n<p class=\"p\">\u8fc1\u79fb\u5230\u65b0\u7684\u7f16\u7a0b\u6a21\u578b\u5c31\u50cf\u8d70\u4e00\u6761\u65b0\u8def\u5f84\uff0c\u5c06\u60a8\u5e26\u5230\u76f8\u540c\u7684\u76ee\u7684\u5730\u3002\u4e00\u8def\u4e0a\u7684\u89c6\u89c9\u548c\u58f0\u97f3\uff08\u4ee5\u53ca\u60a8\u7f16\u5199\u7684\u4ee3\u7801\uff09\u662f\u4e0d\u540c\u7684\u3002<\/p>\n<p class=\"p\">\u8fc1\u79fb\u7ec4\u4ef6\u4e5f\u662f\u4f7f\u7528Aura\u7ec4\u4ef6\u4e2d\u53ef\u80fd\u672a\u4f7f\u7528\u7684ES6\u65b0\u529f\u80fd\uff08\u4f8b\u5982JavaScript\u6a21\u5757\uff09\u7684\u7edd\u4f73\u673a\u4f1a\u3002<\/p>\n<p class=\"p\">\u5728\u73b0\u4ee3JavaScript\u5f00\u53d1\u7684Trailhead\u6a21\u5757\u4e3a\u60a8\u63d0\u4f9b\u4e86\u8fd9\u4e9b\u65b0\u529f\u80fd\u5f88\u597d\u7684\u6982\u8ff0\u3002<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u5b66\u4e60\u76ee\u6807 \u5b8c\u6210\u672c\u5355\u5143\u540e\uff0c\u60a8\u5c06\u80fd\u591f\uff1a \u5c06JavaScript\u4eceAura\u7ec4\u4ef6\u8fc1\u79fb\u5230Lightning Web\u7ec4\u4ef6\u3002 &hellip; <a href=\"http:\/\/www.ponybai.com\/?p=3249\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">\u9002\u7528\u4e8eAura\u5f00\u53d1\u4eba\u5458\u7684Lightning Web Components &#8211; \u8fc1\u79fbJavaScript<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":3250,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[137],"tags":[],"class_list":["post-3249","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-auralightning-web-components"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u9002\u7528\u4e8eAura\u5f00\u53d1\u4eba\u5458\u7684Lightning Web Components - \u8fc1\u79fbJavaScript - \u767d\u767d\u968f\u7b14<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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