如何检查击倒中的含量 [英] How to check contain in knockout

问题描述

我正在使用淘汰赛，我有一个HTML页面，我想在其中检查某些值的字符串. 就像我有一个字符串'A:B:C:D:F:G:H:I'，我只想用剔除检查html中的此字符串. 型号

I am using knockout and i have one html page where i want to check string with some value. Like i have one string 'A:B:C:D:F:G:H:I', i just want to check this string in html with knockout if. Model

 var viewModel = function () {
   var self = this;
   self.key = ko.observable("A:B:C:D:F:G:H:I");
 }

查看

<!-- ko if: key().contains('A') -->
    <input type="checkbox" checked="checked" value="A"/>
 <!-- /ko -->
  <!-- ko if: key().contains('B') -->
    <input type="checkbox" checked="checked" value="B"/>
 <!-- /ko -->

在此可以说key是一个字符串，我想检查key是否包含A然后执行一些操作，如果B然后执行其他操作.如何通过淘汰赛实现这一目标.

In this lets say key is a string , i want to check if key contain A then do some, if B then do some other thing. How to achieve it with knockout.

推荐答案

我刚刚看到了这个问题.甚至我也遇到同样的问题.我找到了一种解决方案，它可能会对某人有所帮助.

I just saw this question. Even I was stuck with same problem. I have found a solution, It may help someone.

 var viewModel = function () {
   var self = this;
   self.key = ko.observable("A:B:C:D:F:G:H:I");
 }

所以在您看来，您可以执行以下操作

So in your view you can do something like this

<!-- ko if: key().indexOf('A') > -1 -->
    <input type="checkbox" checked="checked" value="A"/>
<!-- /ko -->
<!-- ko if: key().indexOf('B') > -1 -->
    <input type="checkbox" checked="checked" value="B"/>
<!-- /ko -->

这篇关于如何检查击倒中的含量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IT屋！