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JavaScript is not the only scripting language; there are others such as VBScript and Perl. So why choose JavaScript over the others?
The main reason for choosing JavaScript is its widespread use and availability. Both of the most commonly used browsers, IE and Firefox, support JavaScript, as do almost all of the less commonly used browsers. So you can assume that most people browsing your web site will have a version of JavaScript installed, though it is possible to use a browser’s options to disable it.
Of the other scripting languages we mentioned, VBScript, which can be used for the same purposes as JavaScript, is supported only by Internet Explorer running on the Windows operating system, and Perl is not used at all in web browsers.
JavaScript is also very versatile and not just limited to use within a web page. For example, it can be used in Windows to automate computer-administration tasks and inside Adobe Acrobat .pdf files to control the display of the page just as in web pages, although Acrobat uses a more limited version of JavaScript. However, the question of which scripting language is the most powerful and useful has no real answer. Pretty much everything that can be done in JavaScript can be done in VBScript, and vice versa.
The main reason for choosing JavaScript is its widespread use and availability. Both of the most commonly used browsers, IE and Firefox, support JavaScript, as do almost all of the less commonly used browsers. So you can assume that most people browsing your web site will have a version of JavaScript installed, though it is possible to use a browser’s options to disable it.
Of the other scripting languages we mentioned, VBScript, which can be used for the same purposes as JavaScript, is supported only by Internet Explorer running on the Windows operating system, and Perl is not used at all in web browsers.
JavaScript is also very versatile and not just limited to use within a web page. For example, it can be used in Windows to automate computer-administration tasks and inside Adobe Acrobat .pdf files to control the display of the page just as in web pages, although Acrobat uses a more limited version of JavaScript. However, the question of which scripting language is the most powerful and useful has no real answer. Pretty much everything that can be done in JavaScript can be done in VBScript, and vice versa.