Why are the js statements in the book not included in my vs2010? _html/css_WEB-ITnose

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Release: 2016-06-24 11:52:40
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For example: var p=window.createPopup()
When I use vs2010 to edit js, there is no such smart prompt, and the running prompt is an undefined error. Not only this, there are also many methods and attributes in books that are not defined. The same is true in DMCS5. What's going on?

This book is a quick reference guide to JavaScript syntax and objects.


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This method of createPopup is not available in JScript
JScript is only compatible with large formats Part of JavaScript

It is recommended to learn javascript or jquery

It is recommended to learn javascript or jquery



I am learning javascript.
Why is there no such prompt in vs2010?

VS2010 was created by Microsoft, and the words you mentioned were created by the w3c organization. The two of them are mortal enemies, so... You know. . …

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