问题描述
昨天我在这里问了一个问题 ,我在这一行得到了很好的答案代码var def = new jQuery.Deferred();
的代码在jsfiddle.net上运行正常,但是我的萤火虫说TypeError: jQuery.Deferred is not a constructor
,并使用此代码var def = jQuery.Deferred();
表示TypeError: jQuery.Deferred is not a function
I asked a question here yesterday, i got a good answer with this line of code var def = new jQuery.Deferred();
the code is working fine at jsfiddle.net, but my firebug says that TypeError: jQuery.Deferred is not a constructor
, and with this code var def = jQuery.Deferred();
it said TypeError: jQuery.Deferred is not a function
推荐答案
Deferred
方法是jQuery 1.5引入的.确保您至少使用该版本的库,否则请升级.
The Deferred
method was introduced with jQuery 1.5. Ensure that you're using at least that version of the library, and if not, upgrade.
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