{"id":190995,"date":"2022-10-02T07:36:41","date_gmt":"2022-10-01T23:36:41","guid":{"rendered":"https:\/\/www.idc.net\/help\/190995\/"},"modified":"2022-10-02T07:36:41","modified_gmt":"2022-10-01T23:36:41","slug":"%e5%90%8e%e6%b5%aa%e4%ba%91react%e6%95%99%e7%a8%8b%ef%bc%9ajavascript-%e7%8e%af%e5%a2%83","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/190995\/","title":{"rendered":"\u540e\u6d6a\u4e91React\u6559\u7a0b\uff1aJavaScript \u73af\u5883"},"content":{"rendered":"<h2>JavaScript \u8fd0\u884c\u65f6\u95f4<\/h2>\n<p style=\"margin: 0px 0px 10px;line-height: 26px;font-size: 14px;font-style: normal;font-variant: normal;font-weight: normal;letter-spacing: normal;text-align: start;text-indent: 0px;text-transform: none\">\u5f53\u4f7f\u7528 React Native \u65f6\uff0c\u4f60\u5c06\u4f1a\u5728\u4e24\u4e2a\u73af\u5883\u4e2d\u8fd0\u884c JavaScript \u4ee3\u7801\uff1a<\/p>\n<ul>\n<li>\n<p>\u5728\u6a21\u62df\u5668\u548c\u7535\u8bdd\u4e2d\uff1a[JavaScriptCore](<span>&nbsp;<\/span>http:\/\/trac.webkit.org\/wiki\/JavaScriptCore) \u662f JavaScript \u7684\u5f15\u64ce\uff0c\u80fd\u591f\u9a71\u52a8 Safari \u548c web \u89c6\u56fe\u3002\u7531\u4e8e\u5728 iOS \u5e94\u7528\u7a0b\u5e8f\u4e2d\u6ca1\u6709\u53ef\u5199\u7684\u53ef\u6267\u884c\u7684\u5185\u5b58\uff0c\u5b83\u4e0d\u7528 JIT \u8fd0\u884c\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f7f\u7528 Chrome \u8c03\u8bd5\u65f6\uff0c\u5b83\u5728 Chrome \u672c\u8eab\u4e2d\u8fd0\u884c\u6240\u6709 JavaScript \u4ee3\u7801\uff0c\u5e76\u4e14\u901a\u8fc7 WebSocket \u4e0e Objective-C \u4ea4\u4e92\u3002\u6240\u4ee5\u4f60\u6b63\u5728\u4f7f\u7528 [V8](<span>&nbsp;<\/span>https:\/\/code.google.com\/p\/v8\/)\u3002<\/p>\n<\/li>\n<\/ul>\n<p style=\"margin: 0px 0px 10px;line-height: 26px;font-size: 14px;font-style: normal;font-variant: normal;font-weight: normal;letter-spacing: normal;text-align: start;text-indent: 0px;text-transform: none\">\u867d\u7136\u4e24\u4e2a\u73af\u5883\u5f88\u76f8\u4f3c\uff0c\u4f46\u662f\u4f60\u53ef\u80fd\u4f1a\u4ee5\u89e6\u53ca\u4e00\u4e9b\u77db\u76fe\u800c\u7ed3\u675f\u3002\u5c06\u6765\u6211\u4eec\u5f88\u53ef\u80fd\u53bb\u5c1d\u8bd5\u5176\u4ed6 JS \u5f15\u64ce\uff0c\u6240\u4ee5\u6700\u597d\u907f\u514d\u4f9d\u8d56\u4efb\u4f55\u8fd0\u884c\u65f6\u7684\u7ec6\u8282\u3002<\/p>\n<h2>JavaScript \u8f6c\u6362<\/h2>\n<p style=\"margin: 0px 0px 10px;line-height: 26px;font-size: 14px;font-style: normal;font-variant: normal;font-weight: normal;letter-spacing: normal;text-align: start;text-indent: 0px;text-transform: none\">React Native \u9644\u5e26\u8bb8\u591a JavaScript \u8f6c\u6362\uff0c\u4f7f\u7f16\u5199\u4ee3\u7801\u66f4\u6109\u5feb\u3002\u5982\u679c\u4f60\u597d\u5947\u7684\u8bdd\uff0c\u4f60\u53ef\u4ee5\u67e5\u770b[\u6240\u6709\u8fd9\u4e9b\u8f6c\u6362\u7684\u5b9e\u73b0](https:\/\/github.com\/facebook\/jstransform\/tree\/master\/visitors)\u3002\u8fd9\u662f\u5b8c\u6574\u7684\u5217\u8868\uff1a<\/p>\n<p style=\"margin: 0px 0px 10px;line-height: 26px;font-size: 14px;font-style: normal;font-variant: normal;font-weight: normal;letter-spacing: normal;text-align: start;text-indent: 0px;text-transform: none\">ES5<\/p>\n<ul>\n<li>\n<p>\u5173\u952e\u5b57\uff1a<code>promise.catch(function() { });<\/code><\/p>\n<\/li>\n<\/ul>\n<p style=\"margin: 0px 0px 10px;line-height: 26px;font-size: 14px;font-style: normal;font-variant: normal;font-weight: normal;letter-spacing: normal;text-align: start;text-indent: 0px;text-transform: none\">ES6<\/p>\n<ul>\n<li>\n<p>\u7bad\u5934\u51fd\u6570\uff1a<code>&lt;C onPress={() =&gt; this.setState({pressed: true})}<\/code><\/p>\n<\/li>\n<li>\n<p>\u8c03\u7528\u4f20\u64ad\uff1a<code>Math.max(...array);<\/code><\/p>\n<\/li>\n<li>\n<p>\u7c7b\uff1a<code>class C extends React.Component { render() { return &lt;View \/&gt;; } }<\/code><\/p>\n<\/li>\n<li>\n<p>\u89e3\u6784\uff1a<code>var {isActive, style} = this.props;<\/code><\/p>\n<\/li>\n<li>\n<p>\u8fed\u4ee3\uff1a<code>for (var element of array) { }<\/code><\/p>\n<\/li>\n<li>\n<p>\u8ba1\u7b97\u5c5e\u6027\uff1a<code>var key = 'abc'; var obj = {[key]: 10};<\/code><\/p>\n<\/li>\n<li>\n<p>\u5bf9\u8c61 Consise \u65b9\u6cd5\uff1a<code>var obj = { method() { return 10; } };<\/code><\/p>\n<\/li>\n<li>\n<p>\u5bf9\u8c61 short \u8868\u793a\u6cd5\uff1a<code>var name = 'vjeux'; var obj = { name };<\/code><\/p>\n<\/li>\n<li>\n<p>\u5176\u4ed6\u53c2\u6570\uff1a<code>function(type, ...args) { }<\/code><\/p>\n<\/li>\n<li>\n<p>\u6a21\u677f\uff1a<span>&nbsp;<\/span><code>var who = 'world'; var str = 'Hello ${who}';<\/code><\/p>\n<\/li>\n<\/ul>\n<p style=\"margin: 0px 0px 10px;line-height: 26px;font-size: 14px;font-style: normal;font-variant: normal;font-weight: normal;letter-spacing: normal;text-align: start;text-indent: 0px;text-transform: none\">ES7<\/p>\n<ul>\n<li>\n<p>\u5bf9\u8c61\u4f20\u64ad\uff1a<code>var extended = { ...obj, a: 10 };<\/code><\/p>\n<\/li>\n<li>\n<p>Trailing Comma \u51fd\u6570\uff1a<code>function f(a, b, c,) { }<\/code><\/p>\n<\/li>\n<\/ul>\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>JavaScript \u8fd0\u884c\u65f6\u95f4 \u5f53\u4f7f\u7528 React Native \u65f6\uff0c\u4f60\u5c06\u4f1a\u5728\u4e24\u4e2a\u73af\u5883\u4e2d\u8fd0\u884c JavaScri [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[182398],"tags":[],"class_list":["post-190995","post","type-post","status-publish","format-standard","hentry","category-mini-program"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/190995","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=190995"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/190995\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=190995"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=190995"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=190995"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}