在angular 5组件中调用外部js文件的函数 [英] Call a function of external js file in angular 5 component

问题描述

在 index.html 下，我已经声明了一个外部 js 文件，例如
<script data-siteid="XXXXXX" src="https://api.cartstack.com/js/customer-tracking/website.com_c7ee604471301b0bd028e8f19a535557.js" type="text/javascript"></script>

Under index.html I have delcared an external js file like
<script data-siteid="XXXXXX" src="https://api.cartstack.com/js/customer-tracking/website.com_c7ee604471301b0bd028e8f19a535557.js" type="text/javascript"> </script>

我必须从组件中调用名为 cartstack_updatecart() 的函数.(该函数是从上面的链接生成的).如何做到这一点?

I have to call a function named cartstack_updatecart() from a component. (That function is generating from above link). How to do that?

推荐答案

在您的组件中执行以下步骤:-

Follow below steps in your component:-

1) First add a reference of your external JS file for importing it to the component. 
   Import * as abcJS from '/YourExternalJS.js';

2) Now declare a "var" of the same name that your function has inside external JS.
   declare var cartstack_updatecart: any;

3) ngOninit(){
 cartstack_updatecart();
 }

4) Do remember that your JQuery should be loaded first than your external JS file.

我在ngoninitlifecycleHook上调用了那个函数.另外，不要在 Index.html 中声明外部 JS 文件，我宁愿建议您在脚本数组中的 angular-cli.json 文件中声明它.一切顺利.

I have called that function on ngoninit lifecycleHook. Also instead of declaring external JS file inside Index.html, I would rather suggest you to declare it in angular-cli.json file in scripts array. All the best.

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