{"id":361,"date":"2014-06-05T08:58:04","date_gmt":"2014-06-05T08:58:04","guid":{"rendered":"http:\/\/localhost\/__sites\/3d_blog\/?p=361"},"modified":"2014-06-07T17:55:46","modified_gmt":"2014-06-07T17:55:46","slug":"split-to-array-is-dangerous","status":"publish","type":"post","link":"https:\/\/blog.silverterra.net\/?p=361","title":{"rendered":"split to array is sometimes dangerous"},"content":{"rendered":"<blockquote><p>Goal: to notice the split function special feature<\/p><\/blockquote>\n<p>just split a delimited string to an array:<\/p>\n<pre data-enlighter-language=\"js\" class=\"EnlighterJSRAW\">\r\n  console.log('1,2,3'.split(',').length); \/\/ --&gt; 3\r\n<\/pre>\n<p>but there is a strange behavior<\/p>\n<pre data-enlighter-language=\"js\" class=\"EnlighterJSRAW\">\r\n  console.log(''.split(',').length); \/\/ --&gt; 1\r\n<\/pre>\n<p>we have an empty element! We need to check the source string is valid or not.<\/p>\n<pre data-enlighter-language=\"js\" class=\"EnlighterJSRAW\">\r\n  var src = '';\r\n  var arr = src ? src.split(',') : [];\r\n  console.log(arr.length); \/\/ --&gt; 0\r\n<\/pre>\n<p>The result is correct now. Just be careful.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Goal: to notice the split function special feature just split a delimited string to an array: but there is a strange behavior we have an empty element! We need to check the source string is valid or not. The result is correct now. Just be careful.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-361","post","type-post","status-publish","format-standard","hentry","category-javascript"],"_links":{"self":[{"href":"https:\/\/blog.silverterra.net\/index.php?rest_route=\/wp\/v2\/posts\/361","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.silverterra.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.silverterra.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.silverterra.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.silverterra.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=361"}],"version-history":[{"count":6,"href":"https:\/\/blog.silverterra.net\/index.php?rest_route=\/wp\/v2\/posts\/361\/revisions"}],"predecessor-version":[{"id":367,"href":"https:\/\/blog.silverterra.net\/index.php?rest_route=\/wp\/v2\/posts\/361\/revisions\/367"}],"wp:attachment":[{"href":"https:\/\/blog.silverterra.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=361"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.silverterra.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=361"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.silverterra.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=361"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}