{"id":283,"date":"2025-08-05T18:13:38","date_gmt":"2025-08-05T10:13:38","guid":{"rendered":"https:\/\/blog.jishuge.cn\/?p=283"},"modified":"2025-08-05T18:13:38","modified_gmt":"2025-08-05T10:13:38","slug":"javascript-%e4%b8%ad-%e7%ae%ad%e5%a4%b4%e5%87%bd%e6%95%b0%ef%bc%88arrow-function%ef%bc%89%e7%9a%84%e8%af%ad%e6%b3%95%e5%b7%ae%e5%bc%82","status":"publish","type":"post","link":"https:\/\/blog.jishuge.cn\/?p=283","title":{"rendered":"JavaScript \u4e2d \u7bad\u5934\u51fd\u6570\uff08Arrow Function\uff09\u7684\u8bed\u6cd5\u5dee\u5f02."},"content":{"rendered":"\n<h3 class=\"wp-block-heading\">bug\u91cd\u73b0<\/h3>\n\n\n\n<p>\u5728\u9879\u76ee\u8c03\u8bd5\u7684\u65f6\u5019\uff0c\u53d1\u73b0javascript\u5728\u8fc7\u6ee4\u6570\u7ec4\u7684\u65f6\u5019\uff0c\u53d1\u73b0\u7adf\u7136\u4e3a\u7a7a\u6570\u7ec4\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>var ages = &#91;32, 33, 16, 40]; \/\/\u60f3\u8981\u83b7\u53d6\u9664\u4e86\u7b2c\u4e8c\u4e2a\u5143\u7d20\u5916\u7684\u6240\u6709\u5143\u7d20<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/\u7b2c\u4e00\u79cd\u5199\u6cd5\uff1a\nvar a = ages.filter((_, index) => index !== 1);\n\n\/\/\u7b2c\u4e8c\u79cd\u5199\u6cd5:\nvar a = ages.filter((_, index) => { index !== 1 });\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u4e24\u79cd\u5199\u6cd5\uff0c\u5c31\u56e0\u4e3a\u6709\u4e00\u4e2a{}\u5bfc\u81f4\u7ed3\u679c\u5b8c\u5168\u4e0d\u4e00\u6837\uff0c\u7b2c\u4e00\u79cd\u5199\u6cd5\u80fd\u591f\u8fd4\u56de\u9884\u60f3\u4e2d\u7684\u6548\u679c\u3002<\/p>\n\n\n\n<p>\u7b2c\u4e8c\u79cd\u5199\u6cd5\u5c31\u4f1a\u8fd4\u56de\u4e00\u4e2a\u7a7a\u7684\u6570\u7ec4\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u539f\u56e0<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7b2c\u4e00\u79cd\u5199\u6cd5\uff0c\u6ca1\u6709{},\u90a3\u4e48\u4ed6\u5c31\u4e0d\u662f\u4e00\u4e2a\u4ee3\u7801\u5757\uff0c\u7b49\u4e8e\u76f4\u63a5\u8fd4\u56de <code>index !== 1<\/code> \u7684\u5143\u7d20\u3002<\/li>\n\n\n\n<li>\u7b2c\u4e8c\u79cd\u5199\u6cd5\uff0c\u56e0\u4e3a\u6709{},\u90a3\u4e48\u5c31\u662f\u4e00\u4e2a\u4ee3\u7801\u5757\uff0c\u800c\u6211\u4eec\u6ca1\u6709\u7ed9return\uff0c\u90a3\u4e48\u5c31\u8fd4\u56de\u4e00\u4e2aundefined\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u4fee\u6539:<\/h3>\n\n\n\n<p>\u5982\u679c\u6211\u4eec\u786c\u6027\u8981\u6c42\u6dfb\u52a0{},\u90a3\u4e48\u6211\u4eec\u5c31\u5e94\u8be5\u6dfb\u52a0\u4e00\u4e2areturn <\/p>\n\n\n\n<p><code>var a = ages.filter((_, index) => { <strong>return <\/strong>index !== 1 });<\/code><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>bug\u91cd\u73b0 \u5728\u9879\u76ee\u8c03\u8bd5\u7684\u65f6\u5019\uff0c\u53d1\u73b0javascript\u5728\u8fc7\u6ee4\u6570\u7ec4\u7684\u65f6\u5019\uff0c\u53d1\u73b0\u7adf\u7136\u4e3a\u7a7a\u6570\u7ec4\u3002 \u8fd9\u4e24\u79cd\u5199\u6cd5\uff0c\u5c31\u56e0\u4e3a &hellip; <a href=\"https:\/\/blog.jishuge.cn\/?p=283\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">JavaScript \u4e2d \u7bad\u5934\u51fd\u6570\uff08Arrow Function\uff09\u7684\u8bed\u6cd5\u5dee\u5f02.<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":261,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-283","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-javascript"],"_links":{"self":[{"href":"https:\/\/blog.jishuge.cn\/index.php?rest_route=\/wp\/v2\/posts\/283","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.jishuge.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.jishuge.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.jishuge.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.jishuge.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=283"}],"version-history":[{"count":1,"href":"https:\/\/blog.jishuge.cn\/index.php?rest_route=\/wp\/v2\/posts\/283\/revisions"}],"predecessor-version":[{"id":284,"href":"https:\/\/blog.jishuge.cn\/index.php?rest_route=\/wp\/v2\/posts\/283\/revisions\/284"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.jishuge.cn\/index.php?rest_route=\/wp\/v2\/media\/261"}],"wp:attachment":[{"href":"https:\/\/blog.jishuge.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=283"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.jishuge.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=283"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.jishuge.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=283"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}