{"id":82,"date":"2015-12-10T09:29:37","date_gmt":"2015-12-10T01:29:37","guid":{"rendered":"https:\/\/wp.winter-weng.cc\/work\/?p=82"},"modified":"2015-12-10T09:29:37","modified_gmt":"2015-12-10T01:29:37","slug":"js-if-else-%e7%9a%84%e7%b0%a1%e7%9f%ad%e5%af%ab%e6%b3%95","status":"publish","type":"post","link":"https:\/\/wp.winter-weng.cc\/work\/?p=82","title":{"rendered":"[JS] if&#8230;else&#8230;\u7684\u7c21\u77ed\u5beb\u6cd5"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_75 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"\u986f\u793a\/\u96b1\u85cf\u5167\u5bb9\u76ee\u9304\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/wp.winter-weng.cc\/work\/?p=82\/#%E5%AE%9A%E7%BE%A9%E8%AE%8A%E6%95%B8\" >\u5b9a\u7fa9\u8b8a\u6578<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/wp.winter-weng.cc\/work\/?p=82\/#%E5%96%AE%E4%B8%80_if_%E7%9A%84%E6%83%85%E6%B3%81\" >\u55ae\u4e00 if \u7684\u60c5\u6cc1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/wp.winter-weng.cc\/work\/?p=82\/#if%E2%80%A6else%E2%80%A6_%E7%9A%84%E6%83%85%E6%B3%81\" >if&#8230;else&#8230; \u7684\u60c5\u6cc1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/wp.winter-weng.cc\/work\/?p=82\/#%E6%AA%A2%E6%9F%A5%E8%AE%8A%E6%95%B8%E4%B8%A6%E8%A8%AD%E5%AE%9A%E5%88%9D%E5%A7%8B%E5%80%BC\" >\u6aa2\u67e5\u8b8a\u6578\u4e26\u8a2d\u5b9a\u521d\u59cb\u503c<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/wp.winter-weng.cc\/work\/?p=82\/#%E5%A4%9A%E5%80%8B%E6%A2%9D%E4%BB%B6%E7%9A%84%E6%83%85%E6%B3%81\" >\u591a\u500b\u689d\u4ef6\u7684\u60c5\u6cc1<\/a><\/li><\/ul><\/nav><\/div>\n\n<p>\u96d6\u7136\u7c21\u5beb\u771f\u7684\u5f88\u65b9\u4fbf\uff5e\u4e0d\u904e\u6839\u64da Coding style \u548c\u500b\u4eba\u7fd2\u6163\uff0c\u6709\u6642\u4e26\u4e0d\u5efa\u8b70\u4f7f\u7528\uff0c\u4f46\u77ad\u89e3\u4e00\u4e0b\u9084\u662f\u591a\u5c11\u6709\u4e9b\u5e6b\u52a9\u56c9\u3002<\/p>\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%AE%9A%E7%BE%A9%E8%AE%8A%E6%95%B8\"><\/span>\u5b9a\u7fa9\u8b8a\u6578<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"js\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">var a = 1, b = 0 , c = \"\";<\/pre>\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%96%AE%E4%B8%80_if_%E7%9A%84%E6%83%85%E6%B3%81\"><\/span>\u55ae\u4e00 if \u7684\u60c5\u6cc1<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"js\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">if (a) {\n  c = 'OK';\n}\n\/\/ \u7c21\u5beb\n\/\/ `?:`\u70ba\u4e09\u5143\u904b\u7b97\u5b50(Ternary Operator)\na &amp;&amp; (c = 'OK');\na ? (c= 'OK') : '';<\/pre>\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"if%E2%80%A6else%E2%80%A6_%E7%9A%84%E6%83%85%E6%B3%81\"><\/span>if&#8230;else&#8230; \u7684\u60c5\u6cc1<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"js\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">if (a) {\n  b = 1;\n  c = 'nice';\n} else {\n  b = 2;\n  c = 'bad';\n}\n\/\/ \u7c21\u5beb\n\/\/ `?:`\u70ba\u4e09\u5143\u904b\u7b97\u5b50(Ternary Operator)\na ? ( (b = 1), (c = 'nice') ) : ( (b = 2), (c = 'bad') );<\/pre>\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%AA%A2%E6%9F%A5%E8%AE%8A%E6%95%B8%E4%B8%A6%E8%A8%AD%E5%AE%9A%E5%88%9D%E5%A7%8B%E5%80%BC\"><\/span>\u6aa2\u67e5\u8b8a\u6578\u4e26\u8a2d\u5b9a\u521d\u59cb\u503c<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"js\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">if (!b) {\n  b = 2;\n}\n\/\/ \u7c21\u5beb\nb || (b = 2);<\/pre>\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%A4%9A%E5%80%8B%E6%A2%9D%E4%BB%B6%E7%9A%84%E6%83%85%E6%B3%81\"><\/span>\u591a\u500b\u689d\u4ef6\u7684\u60c5\u6cc1<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"js\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">function getA () {\n  if (a === 0) {\n    return 'a is zero.';\n  } else if (a === 1) {\n    return 'a is one.';\n  } else {\n    return 'a is not 0 nor 1.';\n  }\n}\n\/\/ \u7c21\u5beb\n\/\/ `?:`\u70ba\u4e09\u5143\u904b\u7b97\u5b50(Ternary Operator)\nfunction getA () {\n  return (a === 0) ? 'a is zero' : (a === 1) ? 'a is one' : 'other';\n}\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u96d6\u7136\u7c21\u5beb\u771f\u7684\u5f88\u65b9\u4fbf\uff5e\u4e0d\u904e\u6839\u64da Coding sty&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"pgc_sgb_lightbox_settings":"","footnotes":""},"categories":[4],"tags":[21],"class_list":["post-82","post","type-post","status-publish","format-standard","hentry","category-javascript","tag-javascript"],"_links":{"self":[{"href":"https:\/\/wp.winter-weng.cc\/work\/index.php?rest_route=\/wp\/v2\/posts\/82","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.winter-weng.cc\/work\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wp.winter-weng.cc\/work\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wp.winter-weng.cc\/work\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.winter-weng.cc\/work\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=82"}],"version-history":[{"count":0,"href":"https:\/\/wp.winter-weng.cc\/work\/index.php?rest_route=\/wp\/v2\/posts\/82\/revisions"}],"wp:attachment":[{"href":"https:\/\/wp.winter-weng.cc\/work\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=82"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.winter-weng.cc\/work\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=82"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.winter-weng.cc\/work\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=82"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}