{"id":133,"date":"2021-12-06T18:06:36","date_gmt":"2021-12-06T10:06:36","guid":{"rendered":"https:\/\/yichenghui.net\/?p=133"},"modified":"2021-12-06T18:11:08","modified_gmt":"2021-12-06T10:11:08","slug":"%e5%9b%9e%e8%b0%83%e5%87%bd%e6%95%b0%e5%a6%82%e4%bd%95%e6%94%b9%e6%88%90promise%e5%b9%b6%e4%b8%94%e4%b8%8d%e5%bd%b1%e5%93%8d%e5%8e%9f%e6%9d%a5%e7%9a%84%e4%b8%9a%e5%8a%a1%e9%80%bb%e8%be%91","status":"publish","type":"post","link":"https:\/\/yichenghui.net\/index.php\/2021\/12\/06\/%e5%9b%9e%e8%b0%83%e5%87%bd%e6%95%b0%e5%a6%82%e4%bd%95%e6%94%b9%e6%88%90promise%e5%b9%b6%e4%b8%94%e4%b8%8d%e5%bd%b1%e5%93%8d%e5%8e%9f%e6%9d%a5%e7%9a%84%e4%b8%9a%e5%8a%a1%e9%80%bb%e8%be%91\/","title":{"rendered":"\u56de\u8c03\u51fd\u6570\u5982\u4f55\u6539\u6210promise\u5e76\u4e14\u4e0d\u5f71\u54cd\u539f\u6765\u7684\u4e1a\u52a1\u903b\u8f91"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code><\/code><\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">\/\/ old\r\nconst getData = callback => {\r\n    setTimeout(() => {\r\n        const number = Math.random();\r\n        callback(number);\r\n    }, 5000);\r\n}\r\n\r\n\r\n\/\/ new\r\nconst getData = callback => {\r\n    let promiseReject;\r\n    const promise = new Promise(reject => promiseReject = reject);\r\n    setTimeout(() => {\r\n        const number = Math.random();\r\n        promiseReject(number);\r\n        callback &amp;&amp; callback(number);\r\n    }, 5000);\r\n    return promise\r\n}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\/\/ old const getData = callback => { setTimeout(() => { &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/yichenghui.net\/index.php\/2021\/12\/06\/%e5%9b%9e%e8%b0%83%e5%87%bd%e6%95%b0%e5%a6%82%e4%bd%95%e6%94%b9%e6%88%90promise%e5%b9%b6%e4%b8%94%e4%b8%8d%e5%bd%b1%e5%93%8d%e5%8e%9f%e6%9d%a5%e7%9a%84%e4%b8%9a%e5%8a%a1%e9%80%bb%e8%be%91\/\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">\u201c\u56de\u8c03\u51fd\u6570\u5982\u4f55\u6539\u6210promise\u5e76\u4e14\u4e0d\u5f71\u54cd\u539f\u6765\u7684\u4e1a\u52a1\u903b\u8f91\u201d<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kadence_starter_templates_imported_post":false,"footnotes":""},"categories":[4],"tags":[6,5],"class_list":["post-133","post","type-post","status-publish","format-standard","hentry","category-javascript","tag-es6","tag-javascript"],"_links":{"self":[{"href":"https:\/\/yichenghui.net\/index.php\/wp-json\/wp\/v2\/posts\/133","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yichenghui.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yichenghui.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yichenghui.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yichenghui.net\/index.php\/wp-json\/wp\/v2\/comments?post=133"}],"version-history":[{"count":3,"href":"https:\/\/yichenghui.net\/index.php\/wp-json\/wp\/v2\/posts\/133\/revisions"}],"predecessor-version":[{"id":136,"href":"https:\/\/yichenghui.net\/index.php\/wp-json\/wp\/v2\/posts\/133\/revisions\/136"}],"wp:attachment":[{"href":"https:\/\/yichenghui.net\/index.php\/wp-json\/wp\/v2\/media?parent=133"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yichenghui.net\/index.php\/wp-json\/wp\/v2\/categories?post=133"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yichenghui.net\/index.php\/wp-json\/wp\/v2\/tags?post=133"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}