The JS file extension, although highly specialized, can be of two main categories:
- js file ( JavaScript File) is a textual data format in the program code JavaScript. This code is activated during the loading of any web page and implements some functions of JS scripts, for example, opening/closing a browser window, checking the correctness of filling in form fields, formatting graphic fragments of images, generating a drop-down menu.
The JS format is closely related to HTML files through a reference to the HEAD block.
- JS format (full. JScript Executable Script) belongs to the category of executable files written using the program code of the ECMAScript language. The ECMA standard is based on a number of well-known technologies, the most common of which are JavaScript(Netscape) and JScript(Microsoft). For the first time, these technologies were tested in the Navigator Internet browser. The standard is adapted for all versions of Navigator 2.0 and higher, and can also be integrated into all browsers from Microsoft, including Internet Explorer.
The ECMA document was developed under the auspices of the international technical committee ISO/IEC JTC 1 “Methods and means of information technology” and is reflected in the form ISO/IEC 16262:2011 “Information technology. Programming languages, their environments and software system interfaces. ECMAScript language specification”.
The international ISO/IEC standard does not have a final version and is constantly updated, as well as the structure of the JS format.
To date, the JS extension already has a fairly powerful mechanism for data processing, construct management, and error control.
Programs for opening JS files
Based on belonging to the category and area of their practical application, JS format can be opened and formatted using the following software applications:
In case, JS format is a text data format in JavaScript program code, in Windows OS it can be reproduced using the following software products:
It is noteworthy that the JS format is also adapted to work on the Mac OS using the following utilities:
When a JS file belongs to the category of executable files written using the program code of the language ECMAScript, it does not need any additional software and can be played on its own ( Windows based script host(wscript.exe)).
If an error occurs when opening a JS extension, the reasons may be as follows:
- the file is damaged or infected;
- the file is not associated with the OS registry (an incorrect application for playback was selected or a specific plug-in was not installed);
- insufficient device or OS resources;
- corrupted or outdated drivers.
Converting JS to other formats
The unique structure and scope of JS for each specific case does not provide opportunities for converting this format to other extensions. Attempts to convert the extension to another format may not only give no practical results, but also damage the original file. In this regard, the broadcast of this format is practically not practiced.
Why JS and what are its advantages?
JS format is not a common extension among ordinary users. Its main consumers are programmers who develop plug-ins for web applications using the original language code. ECMAScript and JavaScript.
A JS file is a text file that is used to serve code implemented using the JavaScript programming language. When a JavaScript user needs to perform certain operations on a web page, he will place the JavaScript code for such functions through .js files.
This file format is capable of performing a large number of complex operations. Many programmers prefer to use JS files due to their vast potential. It is worth noting that the file with the .js extension may be subject to a virus attack. When downloading files in JS format from third-party Internet resources, it is recommended to pre-scan them with an anti-virus utility, because infected file, which has a JS extension, can significantly degrade performance operating system.
The JS format containing the source code is responsible for executing certain JavaScript instructions within web pages. This type of file is used to add interactivity to site pages, for example, the JS file extension helps open / close windows, form a drop-down menu, rotate images, and so on.
You can open a file with a JS extension using any browser or text editor. Some users prefer to use special software that can open the JS file, such as Adobe Dreamweaver, as well as Microsoft Visual Studio or Adobe ColdFusion Builder. The owners of the MacOS platform quite often use the Apple Dashcode software package, which can correctly open JS and display the necessary content. The .js file extension is very popular on the World Wide Web and has a clear benefit for the functionality of a variety of web pages.
- The extension (format) is the characters at the end of the file after the last dot.
- The computer determines the file type precisely by extension.
- By default, Windows does not show filename extensions.
- Some characters cannot be used in the file name and extension.
- Not all formats are related to the same program.
- Below are all the programs with which you can open the JS file.
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