未捕获的TypeError:无法调用方法' replace'的null [英] Uncaught TypeError: Cannot call method 'replace' of null

问题描述

如果我在Chrome JS控制台上输入"_.template($('#pranks-list').html())"，则效果很好

If I type "_.template($('#pranks-list').html())" on Chrome JS console it's works as well

>> _.template($('#pranks-list').html())
function (a){return e.call(this,a,b)}

app.js //观看次数

app.js // Views

window.PranksListView = Backbone.View.extend({

    template: _.template($('#pranks-list').html())
});

Index.html

Index.html

  <script type="text/html" id="pranks-list">
    <li><a href='#pranks/<%= id %>'><%= name %></a></li>
  </script>

  </body>

为什么我在此行上遇到此错误?

Why I get this error on this line??

template: _.template($('#pranks-list').html())

推荐答案

很难看到完整的代码，但是您可能正在尝试在创建dom和节点存在之前运行_.template($('#pranks-list').html()). 通常，在准备好模板变量后，最好在渲染时渲染模板:

It's hard to tell without seeing the whole code, but you are probably trying to run _.template($('#pranks-list').html()) before the dom is created and the node is there. Usually its a good practice to render the template on render time when you have the template variables ready:

_.template($('#pranks-list').html(), {id: 'foo', name: 'bar'});

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