There are many different programming languages in the world. Some of them appear and win the hearts of programmers, and some disappear without success. Today we will look at two languages that have long been popular among programmers: JavaScript and JScript.
What is JavaScript?
JavaScript is a full-fledged dynamic Programming Language applied to an HTML document and can provide dynamic interactivity on web pages. It was developed by Brendan Eich, co-founder of the Mozilla Project, Mozilla Foundation, and Mozilla Corporation.
JavaScript is incredibly versatile and beginner-friendly. With a lot of experience, you can create games, animated 2D and 3D graphics, full-fledged database applications, and much more!
JavaScript itself is fairly compact but very flexible. Developers have built many tools on top of the core JavaScript language and unlocked many additional features with little effort.
What is JScript?
JScript is a scripting programming language that can be used to create (write) scripts that will be interpreted by the Windows Script Host component.
At first glance, JScript is very similar to JavaScript (ECMAScript), which is natural because the syntax, some objects, methods, and properties are similar to JavaScript. But it's still not JavaScript, specifically JScript. JavaScript (ECMAScript) is focused on browser objects, and JScript is already focused on Windows operating system components.
JavaScript code compilation is not necessary. Our browsers manage these on their own.
Conditional compilation is supported by the JScript code. At the same time, we can add programmes to the block's comments and execute them only when necessary. Conditional compilation is not supported as of Microsoft Internet Explorer 11.
Syntax
C++ and Java share similarities in their syntax. If you've used C++ or Java before, the syntax of JavaScript will be familiar to you. However, JavaScript's internals are more similar to an interpreted, dynamically typed language like Python or Ruby. In this section, we write HTML script code.
The JavaScript syntax is used for writing JScript.
Object Access
JavaScript is unable to interact with any browser-based objects.
JScript has access to features provided by Internet Explorer. One such example of an object is ActiveX.
Browser compatibility
JavaScript requires writing code to ensure compatibility with many browsers.
Microsoft Internet Explorer is the only browser that supports JScript.
Similarities Between JavaScript and JScript
Metrics
Comparison
Type
They are both programming languages.
Syntax
The syntax is the same for both.
Performance
Each is swift.
Client/Server
Both are typically utilised on the client side.
Objective
Both are made to create interactive, dynamic web sites.
Examples Between JavaScript and JScript
1. The below example shows a sample JavaScript script running which on a browser shows a text, and on clicking the text, we will see the color of the text changing.
JavaScript
<html>
<body>
<p onclick="myFunction(this, 'red')">Click to change color.</p>
<script> function myFunction(element,colour) { element.style.color = colour; } </script>
</body>
</html>
2. The below example shows a way of creating a text file using ActiveX object using the object accessing feature of JScript on Microsoft’s Internet Explorer.
JScript
var textfile
// create an object which enables to create of a textfile
var dispFileSystem = new ActiveXObject("Scripting.FileS ystemObject");
// provide access to the text file "C: \\ text.dat" textfile = dispFileSystem.OpenTextFile("C: \\
text.dat",2,true);
// first line of the text file textfile.Write("First Column \ t Second Column \ n");
// second line of the text file textfile.Write("20 \ t30 \ n");
// close the text file textfile.Close();
3. The below example shows how JavaScript can be scripted so that running it on a web browser shows a button. On clicking the button, we can see the date and time.
<html>
<body>
<h1>My First JavaScript</h1>
<button type="button" onclick="document.getElementById('demo').innerHTML = Date()"> Click me to display Date and Time.</button>
<p id="demo"></p>
</body>
</html>
Conclusion
To summarize, JavaScript is a scripting language developed by Netscape Communications. It was originally designed for client application development, but later support for server-side coding was also introduced. Several frameworks are built on JavaScript, such as JQuery, Angular.js, ReactJS, and Meteor.js, to name a few.
Again, in the case of JScript, it can be used and implemented in JavaScript code as well. JScript is only used in Microsoft Internet Explorer, while JavaScript can be run in other browsers such as Google Chrome, Safari, Firefox, etc.
According to the organizational requirements in today's world, the need for software developers to have expertise in JavaScript is significantly higher. According to statistics, demand for JScript is limited to Internet Explorer; that's why JScript is not so popular against the huge demand for JavaScript.
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