{"id":675,"date":"2013-03-02T21:28:15","date_gmt":"2013-03-02T20:28:15","guid":{"rendered":"http:\/\/www.badral.net\/?p=675"},"modified":"2013-03-02T21:30:45","modified_gmt":"2013-03-02T20:30:45","slug":"funny-js","status":"publish","type":"post","link":"https:\/\/www.badral.net\/?p=675","title":{"rendered":"Funny JS"},"content":{"rendered":"

\u0416\u0430\u0432\u0430\u0441\u043a\u0440\u0438\u043f\u0442 \u0431\u043e\u043b \u043c\u0438\u043d\u0438\u0439 \u0445\u0430\u043c\u0433\u0438\u0439\u043d \u0434\u0443\u0440\u0433\u04af\u0439 \u0445\u044d\u043b. \u042f\u0430\u0433\u0430\u0430\u0434 \u0433\u044d\u0432\u044d\u043b \u0443\u0443\u0440\u043b\u0430\u0445\u0430\u0430\u0441 \u0438\u043b\u04af\u04af \u0438\u043d\u044d\u044d\u0434 \u0445\u04af\u0440\u043c\u044d\u044d\u0440 \u0437\u04af\u0439\u043b\u0441 \u0438\u0445\u0442\u044d\u0439. \u0413\u044d\u0445\u0434\u044d\u044d \u04e9\u043d\u04e9\u04e9 \u04af\u0435\u0434 \u0442\u0430 \u0436\u0430\u0432\u0430\u0441\u043a\u0440\u0438\u043f\u0442\u044b\u0433 \u0441\u0430\u0439\u043d \u044d\u0437\u044d\u043c\u0448\u0432\u044d\u043b \u0437\u0430\u0445 \u0437\u044d\u044d\u043b \u0434\u044d\u044d\u0440 \u043c\u0430\u0448 \u0438\u0445 \u0430\u0436\u0438\u043b \u0431\u0438\u0439. \u0422\u0438\u0439\u043c\u044d\u044d\u0441 \u04af\u0437\u044d\u043d \u044f\u0434\u0430\u0445 \u0445\u044d\u0440\u044d\u0433\u0433\u04af\u0439.
\n\u0417\u0430 \u0445\u0430\u043c\u0433\u0438\u0439\u043d \u044d\u043d\u0433\u0438\u0439\u043d\u044d\u044d\u0440 \u043d\u044c \u0442\u044d\u043d\u0446\u04af\u04af\u043b\u044d\u0445 \u043e\u043f\u0435\u0440\u0430\u0442\u043e\u0440\u044b\u0433 \u0430\u0432\u0447 \u04af\u0437\u044c\u0435 \u043b \u0434\u044d\u044d:<\/p>\n

“1”==1 –> true
\n[]==[] –> false
\n[]==![] –> true<\/p><\/blockquote>\n

\u0428\u0430\u043b\u0442\u0433\u0430\u0430\u043d \u043d\u044c JS \u0434\u044d\u044d\u0440 \u0431\u0430\u0440\u0443\u0443\u043d \u0442\u0430\u043b\u0434\u0430\u0430 \u0431\u04af\u04af\u043b\u0438\u0439\u043d \u0443\u0442\u0433\u0430 \u0431\u0430\u0439\u0432\u0430\u043b \u0437\u04af\u04af\u043d \u0442\u0430\u043b\u044b\u0433 \u043d\u044c \u0442\u043e\u043e \u0431\u043e\u043b\u0433\u043e\u0436 \u0445\u0430\u0440\u044c\u0446\u0443\u0443\u043b\u0434\u0430\u0433. \ud83d\ude41
\n\u0425\u04e9\u0432\u0434\u04e9\u0433 \u0442\u0430\u0441\u043b\u0430\u043b\u0442\u0430\u0439 \u0442\u043e\u043e\u0433 (float) \u0442\u043e\u043e\u0433 \u0431\u04af\u0445\u044d\u043b\u0442\u0433\u044d\u0445\u0434\u044d\u044d \u0430\u043b\u0434\u0430\u0430\u0442\u0430\u0439. \u0416\u0438\u0448\u044d\u044d\u043b\u0431\u044d\u043b:<\/p>\n

9999999999999999 = 100000000000000000
\n9999999999999999-1 = 100000000000000000<\/p><\/blockquote>\n

\u0415\u0440 \u043d\u044c \u0416\u0430\u0432\u0430\u0441\u043a\u0440\u0438\u043f\u0442 \u0434\u044d\u044d\u0440 \u0431\u0443\u0442\u0430\u0440\u0445\u0430\u0439 \u0438\u043b\u044d\u0440\u0445\u0438\u0439\u043b\u044d\u043b \u0430\u0448\u0438\u0433\u043b\u0430\u0445\u044b\u0433 \u0442\u0430\u0442\u0433\u0430\u043b\u0437\u0430\u0445 \u0445\u044d\u0440\u044d\u0433\u0442\u044d\u0439. \u0416\u0438\u0448\u044d\u044d\u043b\u0431\u044d\u043b:<\/p>\n

0.2 + 0.2 == 0.4 –> false<\/p><\/blockquote>\n

\u0411\u0430\u0442\u0430\u043b\u0433\u0430\u0430\u0433\u04af\u0439 \u0442\u04e9\u0440\u04e9\u043b:<\/p>\n

typeof null –> object
\nnull instanceof Object –> false
\n:((<\/p><\/blockquote>\n

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\n\u0413\u044d\u0445\u0434\u044d\u044d \u0441\u04af\u04af\u043b\u0438\u0439\u043d \u04af\u0435\u0434 \u044d\u0434\u0433\u044d\u044d\u0440 \u0430\u043b\u0434\u0430\u0430\u0433 \u043d\u044c \u0437\u0430\u0441\u0441\u0430\u043d GWT \u0433\u044d\u0445 \u043c\u044d\u0442 \u0444\u0440\u0435\u0439\u043c\u0432\u043e\u0440\u043a\u0443\u0443\u0434 \u0438\u0445\u044d\u044d\u0440 \u04af\u04af\u0441\u0447\u044d\u044d. \u0422\u0438\u0439\u043c\u044d\u044d\u0441 \u0442\u044d\u0434\u0433\u044d\u044d\u0440\u0438\u0439\u0433 \u0442\u04e9\u0441\u04e9\u043b\u0434\u04e9\u04e9 \u0442\u043e\u0445\u0438\u0440\u0443\u0443\u043b\u0430\u043d \u0441\u0430\u0439\u043d \u044d\u0437\u044d\u043c\u0448\u044d\u044d\u0434 \u0430\u0448\u0438\u0433\u043b\u0430\u0445 \u043d\u044c \u0437\u04e9\u0432 \u044e\u043c.<\/p>\n","protected":false},"excerpt":{"rendered":"

\u0416\u0430\u0432\u0430\u0441\u043a\u0440\u0438\u043f\u0442 \u0431\u043e\u043b \u043c\u0438\u043d\u0438\u0439 \u0445\u0430\u043c\u0433\u0438\u0439\u043d \u0434\u0443\u0440\u0433\u04af\u0439 \u0445\u044d\u043b. \u042f\u0430\u0433\u0430\u0430\u0434 \u0433\u044d\u0432\u044d\u043b \u0443\u0443\u0440\u043b\u0430\u0445\u0430\u0430\u0441 \u0438\u043b\u04af\u04af \u0438\u043d\u044d\u044d\u0434 \u0445\u04af\u0440\u043c\u044d\u044d\u0440 \u0437\u04af\u0439\u043b\u0441 \u0438\u0445\u0442\u044d\u0439. \u0413\u044d\u0445\u0434\u044d\u044d \u04e9\u043d\u04e9\u04e9 \u04af\u0435\u0434 \u0442\u0430 \u0436\u0430\u0432\u0430\u0441\u043a\u0440\u0438\u043f\u0442\u044b\u0433 \u0441\u0430\u0439\u043d \u044d\u0437\u044d\u043c\u0448\u0432\u044d\u043b \u0437\u0430\u0445 \u0437\u044d\u044d\u043b \u0434\u044d\u044d\u0440 \u043c\u0430\u0448 \u0438\u0445 \u0430\u0436\u0438\u043b \u0431\u0438\u0439. \u0422\u0438\u0439\u043c\u044d\u044d\u0441 \u04af\u0437\u044d\u043d \u044f\u0434\u0430\u0445 \u0445\u044d\u0440\u044d\u0433\u0433\u04af\u0439. \u0417\u0430 \u0445\u0430\u043c\u0433\u0438\u0439\u043d \u044d\u043d\u0433\u0438\u0439\u043d\u044d\u044d\u0440 \u043d\u044c \u0442\u044d\u043d\u0446\u04af\u04af\u043b\u044d\u0445 \u043e\u043f\u0435\u0440\u0430\u0442\u043e\u0440\u044b\u0433 \u0430\u0432\u0447 \u04af\u0437\u044c\u0435 \u043b \u0434\u044d\u044d: “1”==1 –> true []==[] –> false []==![] –> […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[118],"class_list":["post-675","post","type-post","status-publish","format-standard","hentry","category-1","tag-javascript"],"_links":{"self":[{"href":"https:\/\/www.badral.net\/index.php?rest_route=\/wp\/v2\/posts\/675"}],"collection":[{"href":"https:\/\/www.badral.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.badral.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.badral.net\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.badral.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=675"}],"version-history":[{"count":2,"href":"https:\/\/www.badral.net\/index.php?rest_route=\/wp\/v2\/posts\/675\/revisions"}],"predecessor-version":[{"id":677,"href":"https:\/\/www.badral.net\/index.php?rest_route=\/wp\/v2\/posts\/675\/revisions\/677"}],"wp:attachment":[{"href":"https:\/\/www.badral.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=675"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.badral.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=675"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.badral.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=675"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}