{"id":3828,"date":"2015-05-04T16:59:59","date_gmt":"2015-05-04T08:59:59","guid":{"rendered":"https:\/\/sdeno.com\/?p=3828"},"modified":"2015-05-04T16:59:59","modified_gmt":"2015-05-04T08:59:59","slug":"callbacks%e5%87%bd%e6%95%b0%e5%9b%9e%e8%b0%83%e7%ae%a1%e7%90%86","status":"publish","type":"post","link":"https:\/\/sdeno.com\/?p=3828","title":{"rendered":"$.callbacks()\u51fd\u6570\u56de\u8c03\u7ba1\u7406"},"content":{"rendered":"

jquery $.callbacks \u51fd\u6570 \u56de\u8c03 \u7ba1\u7406<\/p>\n

\u6ce8\uff1a\u9605\u8bfb\u7248\u672c\u4e3a1.8.3<\/p>\n

$.callbacks() \/\/\u7ba1\u7406\u591a\u4e2a \u51fd\u6570 \u56de\u8c03<\/p>\n

function fn1(i,a){\r\n alert(i+a);\r\n return false\r\n}\r\n\r\nfunction fn2(){\r\n alert('f2');\r\n}\r\n \r\nfunction fn3(){\r\n alert('f3');\r\n}<\/pre>\n
var callbacks=$.Callbacks(); \/\/\u521b\u5efa\u56de\u8c03\u5bf9\u8c61\r\ncallbacks.disable()<\/span>; \/\/\u8ddfempty()\u7c7b\u4f3c\uff0c\u4f46\u5b83\u4ec5\u6b21\u54ea\u6761\u8bed\u53e5\u4e4b\u4e0b\u5c31\u7981\u7528\u54ea\u6761\uff0c\u4ee5\u4e0b\u4ee3\u7801\u4e0d\u53d7\u5f71\u54cd\u3002\r\ncallbacks.add<\/span>(fn1); \/\/ \u65b9\u5f0f1\r\ncallbacks.add(fn1, fn2); \/\/ \u65b9\u5f0f2 \u4e00\u6b21\u6dfb\u52a0\u591a\u4e2a\u56de\u8c03\u51fd\u6570\r\ncallbacks.add([fn1, fn2]); \/\/ \u65b9\u5f0f3 \u4f20\u6570\u7ec4\r\ncallbacks.add(fn1, [fn2]); \/\/ \u65b9\u5f0f4 \u51fd\u6570\u548c\u6570\u7ec4\u63ba\u548c\r\ncallbacks.remove<\/span>(fn1); \/\/\u79fb\u9664fn1\u7684\u56de\u8c03\r\ncallbacks.empty<\/span>(); \/\/\u79fb\u9664\u6240\u6709 \u56de\u8c03\u51fd\u6570\r\ncallbacks.fire<\/span>(1,1); \/\/\u6267\u884cadd()\u4e2d\u6dfb\u52a0\u7684\u51fd\u6570,\u62ec\u53f7\u91cc\u4f20\u53c2\u6570\r\ncallbacks.fireWith<\/span>(window,[1,1]); \/\/\u8ddffire(1,1)\u7c7b\u4f3c\r\ncallbacks.has<\/span>(fn3); \/\/\u5224\u65ad\u67d0\u51fd\u6570\u662f\u5426\u52a0\u5165\u4e86\u56de\u8c03\u5217\u8868\u4e2d\r\ncallbacks.fired(); \/\/\u5224\u65ad \u53ea\u8981\u8c03\u7528\u8fc7\u4e00\u6b21fire\u6216fireWith\u5c31\u4f1a\u8fd4\u56detrue\u3002<\/pre>\n
 <\/p>\n
$.Callbacks() \/\/\u53ef\u4f20\u90124\u79cd\u53c2\u6570 once,memory,unique,stopOnFalse\uff0c\u4e5f\u53ef\u7ec4\u5408\u4f7f\u7528\u3002<\/p>\n
once<\/span>\uff1a\u89e6\u53d1\u4e00\u6b21\r\nvar callbacks=$.Callbacks('once');\r\ncallbacks.add(fn);\r\ncallbacks.fire(); \/\/ \u89e6\u53d1\u4e00\u6b21\r\ncallbacks.fire(); \/\/ \u4e0d\u518d\u89e6\u53d1<\/pre>\n
\r\nmemory<\/span>\uff1a\u89e6\u53d1\u5168\u90e8\u51fd\u6570\u4e0d\u5206\u5148\u540e\r\ncallbacks.add(fn1);\r\ncallbacks.fire(); \r\ncallbacks.add(fn2); \/\/ fn2\u4e5f\u4f1a\u89e6\u53d1\u5230<\/pre>\n
unique<\/span>\uff1a\u4fdd\u8bc1\u91cd\u590d\u51fa\u73b0\u7684\u51fd\u6570\u4e5f\u4ec5\u8c03\u7528\u4e00\u6b21\r\ncallbacks.add(fn1);\r\ncallbacks.add([fn1, fn2]); \/\/ fn1\u91cd\u590d\u4e86\r\ncallbacks.fire(); \/\/ fn1\u4e0d\u4f1a\u5728\u88ab\u6267\u884c<\/pre>\n
stopOnFalse<\/span>\uff1a \u8ba9\u51fd\u6570\u4e2d\u6709return false\u7684\u8bed\u53e5\u751f\u6548\r\nfunction fn1() {\r\n console.log(1)\r\n}\r\nfunction fn2() {\r\n console.log(2)\r\n return false \/\/ \u6ce8\u610f\u8fd9\u91cc\r\n}\r\nfunction fn3() {\r\n console.log(3)\r\n}\r\nvar callbacks = $.Callbacks('stopOnFalse');\r\ncallbacks.add(fn1, fn2, fn3);\r\ncallbacks.fire(); \/\/ fn3 \u4e0d\u4f1a\u88ab\u6267\u884c\u5230<\/pre>\n
\u53ef\u4ee5\u968f\u610f\u7ec4\u5408\u4f7f\u7528\r\nvar callbacks = $.Callbacks('once stopOnFalse');<\/pre>\n","protected":false},"excerpt":{"rendered":"
jquery $.callbacks \u51fd\u6570 \u56de\u8c03 \u7ba1\u7406 \u6ce8\uff1a\u9605\u8bfb\u7248\u672c\u4e3a1.8.3 $.callbacks()  […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11,13],"tags":[],"class_list":["post-3828","post","type-post","status-publish","format-standard","hentry","category-11","category-jquery"],"_links":{"self":[{"href":"https:\/\/sdeno.com\/index.php?rest_route=\/wp\/v2\/posts\/3828","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sdeno.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sdeno.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sdeno.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sdeno.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3828"}],"version-history":[{"count":0,"href":"https:\/\/sdeno.com\/index.php?rest_route=\/wp\/v2\/posts\/3828\/revisions"}],"wp:attachment":[{"href":"https:\/\/sdeno.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3828"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sdeno.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3828"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sdeno.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3828"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}