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format file js

What is a js file and how do I open a js file?

JS files are text documents that contain lines of JavaScript code. These JavaScript codes are referenced by Web pages when viewers implement an action on those Web pages that require the implementation of functionalities that have been programmed into the Web pages through the JavaScript codes found in the corresponding .js files in the Web server. These functionalities may include automatically closing or opening Web browser windows or tabs, mouseovers, form validation sequences and so on. These JavaScript codes can also be used to create dropdown boxes with interactive functionalities. Microsoft Notepad can be used to open and view the content of these .js files.

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Recommended js file download:
Microsoft Visual Studio 2013
The unified development experience to create compelling consumer and business applications across devices and the cloud.
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ES-Computing EditPlus
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Adobe Dreamweaver CS6
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Bare Bones BBEdit
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MacroMates TextMate
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Adobe Dreamweaver CS6
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Any text editor
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Any Web browser
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Detail js file extension information:
File Type: js
File Format: JavaScript File
Primary Association: JavaScript Files
Mime Type: application/x-javascript, text/javascript