{"id":4280,"date":"2012-05-23T02:37:40","date_gmt":"2012-05-22T17:37:40","guid":{"rendered":"http:\/\/rentan.org\/blog\/?p=4280"},"modified":"2012-05-23T02:37:51","modified_gmt":"2012-05-22T17:37:51","slug":"dmonkey-var-assignment-op-compare","status":"publish","type":"post","link":"https:\/\/rentan.org\/blog\/2012\/05\/23\/dmonkey-var-assignment-op-compare\/","title":{"rendered":"DMonkey: \u5909\u6570\u3068\u4ee3\u5165\u7d50\u679c\u306e\u6bd4\u8f03"},"content":{"rendered":"<div class=\"prog_code javascript\">\n<code>var a = 1;<br \/>\nalert (a == (a = 2));<br \/>\na = 1;<br \/>\nalert ((a = 2) == a);<\/code>\n<\/div>\n<p>IE8\u3001Firefox 12\u3001Google Chrome 19 \u3067\u306f false, true \u3068\u306a\u308a\u307e\u3059\u304c\u3001DMonkey \u3067\u306f\u9006\u3067 true, false \u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u3082\u305d\u3082 ECMAScript \u306b\u304a\u3044\u3066\u3053\u306e\u5f0f\u306e\u7d50\u679c\u304c\u4fdd\u8a3c\u3055\u308c\u3066\u3044\u308b\u306e\u304b\u3001\u672a\u5b9a\u7fa9\u3084\u4e0d\u5b9a\u3084\u5b9f\u88c5\u4f9d\u5b58\u3060\u3063\u305f\u308a\u3059\u308b\u306e\u304b\u8a73\u3057\u3044\u4eba\u6559\u3048\u3066\u3077\u308a\u30fc\u305a\u3002<\/p>\n<p>\u4eee\u306b ECMAScript \u3067\u6b63\u5f53\u306a\u5f0f\u3067\u3042\u3063\u3066\u3082\u3001DMonkey \u3067\u306f\u7d50\u679c\u304c\u9055\u3046\u3057\u898f\u683c\u66f8\u3082\u306a\u3044\u304b\u3089\u8abf\u3079\u308b\u3053\u3068\u3059\u3089\u51fa\u6765\u306a\u3044\u3057\u3067\u3001DMonkey \u3067\u306f\u602a\u3057\u3052\u306a\u8868\u73fe\u306f\u4f7f\u308f\u306a\u3044\u65b9\u304c\u3044\u3044\u3067\u3059\u306d\u3002<\/p>\n<p>\u3061\u306a\u307f\u306b JavaScript \u3067\u6570\u5024\u306e\u6587\u5b57\u5217\u30923\u6841\u533a\u5207\u308a\u306b\u5909\u63db\u3059\u308b\u30b3\u30fc\u30c9\u3067<\/p>\n<div class=\"prog_code javascript\">\n<code>while (a != (a = \uff5e));<\/code>\n<\/div>\n<p>\u3068\u3044\u3046\u30d1\u30bf\u30fc\u30f3\u304c\u4f7f\u308f\u308c\u3066\u3044\u308b\u306e\u3092\u898b\u304b\u3051\u307e\u3057\u305f\u3002<\/p>\n<p>\u898b\u304b\u3051\u305f\u3063\u3066\u3044\u3046\u304b\u79fb\u690d\u3057\u3088\u3046\u3068\u3057\u3066\u3053\u306e\u9055\u3044\u306b\u6c17\u304c\u3064\u3044\u305f\u8a33\u3067\u3059\u304c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>var a = 1; alert (a == (a = 2)); a = 1; alert ((a = 2) == a); IE8\u3001Firefox 12\u3001Google Chrome 19 \u3067\u306f false, true \u3068 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[640],"tags":[],"class_list":["post-4280","post","type-post","status-publish","format-standard","hentry","category-irvine"],"_links":{"self":[{"href":"https:\/\/rentan.org\/blog\/wp-json\/wp\/v2\/posts\/4280","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rentan.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rentan.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rentan.org\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/rentan.org\/blog\/wp-json\/wp\/v2\/comments?post=4280"}],"version-history":[{"count":6,"href":"https:\/\/rentan.org\/blog\/wp-json\/wp\/v2\/posts\/4280\/revisions"}],"predecessor-version":[{"id":4286,"href":"https:\/\/rentan.org\/blog\/wp-json\/wp\/v2\/posts\/4280\/revisions\/4286"}],"wp:attachment":[{"href":"https:\/\/rentan.org\/blog\/wp-json\/wp\/v2\/media?parent=4280"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rentan.org\/blog\/wp-json\/wp\/v2\/categories?post=4280"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rentan.org\/blog\/wp-json\/wp\/v2\/tags?post=4280"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}