我用胡子插值:
_.templateSettings = {
interpolate: /\{\{(.+?)\}\}/g
};
并为此代码我收到错误:Uncaught SyntaxError:意外的令牌if
<div class="d-none flex-container tip-container bg-white mt-5" data-ajax-template-empty-tip>
<div class="tip-header border border-bottom-0 d-flex flex-row p-2">
<div class="align-self-center mr-2">
<a href="./{{countryName}}" target="_blank">
<img class="d-block" alt="" src="/images/flags/{{countryId}}.png">
</a>
</div>
{{if (typeof(cityName) !== "undefined") { }}
<i class="fas fa-arrow-left align-self-center mr-2"></i>
<div class="align-self-center mr-2">
<a class="badge badge-primary" role="button" href="/city/{{cityName}}" target="_blank">
<span>{{cityName}}</span>
</a>
</div>
{{}}}
</div>
</div>
如果没有if语句,它运行良好,但是它不起作用,任何想法都有什么问题?我在线查看了每个问题并且无法弄明白,我甚至删除了插值并使用了默认值<%但不会。
我必须添加此设置才能使其正常工作:
_.templateSettings = {
evaluate: /\{\{(.+?)\}\}/g,
interpolate: /\{\{=(.+?)\}\}/g,
escape: /\{\{-(.+?)\}\}/g
};
在if之前尝试一个空格,如下所示:
{{ if (typeof(cityName) !== "undefined") { }}