{"id":12249,"date":"2023-11-28T22:48:16","date_gmt":"2023-11-28T14:48:16","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=12249"},"modified":"2023-11-29T23:17:29","modified_gmt":"2023-11-29T15:17:29","slug":"javascript-zhong-shuo-shuo-ni-duipromise-de-le-jie","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/javascript-zhong-shuo-shuo-ni-duipromise-de-le-jie\/","title":{"rendered":"JavaScript \u4e2d\u8bf4\u8bf4\u4f60\u5bf9promise \u7684\u4e86\u89e3\uff1f"},"content":{"rendered":"<p>Promise \u662f JavaScript \u4e2d\u7528\u4e8e\u5904\u7406\u5f02\u6b65\u64cd\u4f5c\u7684\u673a\u5236\uff0c\u5b83\u8868\u793a\u4e00\u4e2a\u5f02\u6b65\u64cd\u4f5c\u7684\u6700\u7ec8\u5b8c\u6210\u6216\u5931\u8d25\u3002\u5177\u6709\u4e09\u79cd\u72b6\u6001\uff1apending\uff08\u8fdb\u884c\u4e2d\uff09\u3001fulfilled\uff08\u5df2\u6210\u529f\uff09\u6216 rejected\uff08\u5df2\u5931\u8d25\uff09\u3002<\/p>\n<p>\u57fa\u672c\u4f7f\u7528\u65b9\u5f0f\u662f\u901a\u8fc7\u6784\u9020\u51fd\u6570 <code>new Promise()<\/code> \u521b\u5efa\u4e00\u4e2a Promise \u5b9e\u4f8b\uff0c\u4f20\u5165\u4e00\u4e2a\u6267\u884c\u5668\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u63a5\u53d7\u4e24\u4e2a\u53c2\u6570\uff1a<code>resolve<\/code> \u548c <code>reject<\/code>\u3002\u901a\u8fc7\u8c03\u7528\u8fd9\u4e24\u4e2a\u53c2\u6570\u4e2d\u7684\u4e00\u4e2a\u6765\u6539\u53d8 Promise \u7684\u72b6\u6001\uff0c\u8868\u793a\u5f02\u6b65\u64cd\u4f5c\u7684\u7ed3\u679c\u662f\u6210\u529f\u8fd8\u662f\u5931\u8d25\u3002<\/p>\n<p>Promise \u7684\u4f18\u52bf\u5728\u4e8e\uff1a<\/p>\n<ul>\n<li>\u66f4\u6e05\u6670\u7684\u4ee3\u7801\u7ed3\u6784\uff0c\u907f\u514d\u4e86\u56de\u8c03\u5730\u72f1\u3002<\/li>\n<li>\u66f4\u597d\u7684\u9519\u8bef\u5904\u7406\u673a\u5236\uff0c\u4f7f\u7528 <code>.catch()<\/code> \u6355\u83b7\u9519\u8bef\u3002<\/li>\n<li>\u652f\u6301\u94fe\u5f0f\u8c03\u7528\uff0c\u65b9\u4fbf\u5904\u7406\u591a\u4e2a\u5f02\u6b65\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u4e86\u89e3 Promise\uff0c\u53ef\u4ee5\u66f4\u4f18\u96c5\u5730\u5904\u7406\u5f02\u6b65\u4ee3\u7801\uff0c\u5e76\u6709\u6548\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Promise \u662f JavaScript \u4e2d\u7528\u4e8e\u5904\u7406\u5f02\u6b65\u64cd\u4f5c\u7684\u673a\u5236\uff0c\u5b83\u8868\u793a\u4e00\u4e2a\u5f02\u6b65\u64cd\u4f5c\u7684\u6700\u7ec8\u5b8c\u6210\u6216\u5931\u8d25\u3002\u5177\u6709\u4e09 [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[115],"tags":[],"class_list":["post-12249","post","type-post","status-publish","format-standard","hentry","category-javascript"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/12249","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=12249"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/12249\/revisions"}],"predecessor-version":[{"id":13584,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/12249\/revisions\/13584"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=12249"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=12249"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=12249"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}