实例化时ko.computed不触发功能

问题描述

限时删除！！

有一种在实例化ko.computed时不触发该功能的方法

Hi is there a way to not fire the function when instantiating a ko.computed

示例是

我有这个ko.computing

i have this ko.computed

ko.computed(function(){ alert(this.Test); } , this);

所以基本上，如果我实例化此计算，这将触发在那里定义的函数有没有办法在实例化时不触发它?并且仅在依赖项更改时才触发它?

so basically if i instantiated this computed this will fire the function defined thereis there a way not to fire it upon instantiation? and only fire it when dependency change?

推荐答案

您需要设置 deferEvaluation选项:

You need to set the deferEvaluation option:

ko.computed(function(){ alert(this.Test); } , this, { deferEvaluation: true });

这篇关于实例化时ko.computed不触发功能的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！

1403页，肝出来的..