In this article, we will explore the JavaScript formatter.
What is a formatter?
Formatter serves as an essential instrument designed to diminish the excessive whitespace present in JavaScript code. By minimizing the code's size, it effectively lessens the overall data volume, thereby facilitating smoother data transmission. This tool ensures that the entire codebase receives the necessary indentation and modifications. Properly formatting code significantly enhances both its readability and reusability.
It streamlines the complicated JavaScript code into a clearly organized format. It identifies and rectifies errors in the JavaScript code, allowing for efficient debugging without complications, and facilitates the clear presentation of code blocks. A neatly organized codebase is simpler to maintain, which ultimately conserves both time and effort.
Certain code editors come equipped with an integrated JavaScript formatter.
Demonstrations of JavaScript Formatter
We will explore the examples of the JavaScript formatter.
Demo 1:
We will develop the code to illustrate the formatter that allows users to format HTML text. By utilizing various tags, we can provide distinct features to HTML elements. In the next section, we will demonstrate how to align the paragraph to the right.
Code:
<!DOCTYPE html>
<html lang="en">
<body>
<p> This paragraph can be edited and altered. </p>
<p align= "Right"> This paragraph can be edited and aligned towards the right. </p>
<p><b>The font of the paragraph can also be altered.</b></p>
<p><font color="brown">The Font color can also be formatted.</font></p>
</body>
</html>
Output:
We can witness the output below.
Demo 2:
We will develop the code to showcase the string formatting of a text based on JavaScript, and we will alter the string to be in italics when the submit button is clicked.
Code:
<!DOCTYPE html>
<html lang="en">
<head>
<title></title>
</head>
<body>
<p>Click on the button to see the string format in italics</p>
<button onclick="Func()">Submit</button>
<p id="para"></p>
<script>
function Func() {
var text = "Hello there, how are you?";
var result = text.italics();
document.getElementById("para").innerHTML = result;
}
</script>
</body>
</html>
Output:
We can witness the output downwards.
Demo 3:
We are going to develop a program that will display a variable and generate a new date utilizing JavaScript's Short Dates functionality.
Code:
<!DOCTYPE html>
<html lang="en">
<head>
<title>JavaScript Date</title>
</head>
<body>
<h2>JavaScript Date</h2>
<p id="demo"></p>
<script>
var d = new Date("06/01/2024");
document.getElementById("demo").innerHTML = d;
</script>
</body>
</html>
Output:
We can witness the result downwards.
Demo 4:
We are going to develop a JavaScript application that will display the length of a string formatter along with its attributes.
Code:
<!DOCTYPE html>
<html lang="en">
<head>
<title>JavaScript String Formatter Length</title>
</head>
<body>
<h2>JavaScript String Formatter Length</h2>
<p>Length of the string.</p>
<p id="dm2"></p>
<script>
var s = "Hi there.";
var l = s.length;
document.getElementById("dm2").innerHTML = l;
</script>
</body>
</html>
Output:
We can witness the output below.
Demo 5:
We are going to develop a program that will demonstrate JavaScript formatting utilizing ECMA Script Short Dates.
Code:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Object Property</title>
</head>
<body>
<h2>JavaScript Object Property</h2>
<p>Change in the Object's Property value.</p>
<p id="demo"></p>
<script>
var emp = {
employee_Name: "Anu",
employee_id: 18,
employee_dept: "CSE",
employee_salary: 25000
};
Object.defineProperty(emp, "employee_salary", {value:25000})
document.getElementById("demo").innerHTML = emp.employee_salary;
</script>
</body>
</html>
Output:
We can witness the output below.
Uses of JavaScript formatter
- It increases the code readability and understanding. A JavaScript code that is well formatted is simple to understand. Those developers who work on the same code can easily understand the code logic.
- It helps in debugging that means it can find and fix the problems in an easy manner.
- It is easy to maintain the well formatted code as it saves the time and effort required to update the code.
JavaScript formatting tools
Here are several tools for formatting JavaScript code that assist in enhancing its readability:
Prettier
This tool serves as a code formatter compatible with multiple programming languages, including but not limited to HTML, JavaScript, Angular, TypeScript, Java, Ruby, XML, PHP, and others.
It serves the purpose of enhancing the aesthetics of the code, ensuring that it is both readable and well-organized. Numerous code editors are compatible with the Prettier formatter, including Sublime Text, Visual Studio Code, Espresso, among others. This formatter is efficient and free from bugs, capable of formatting the entire codebase in a single operation.
FreeFormatter-JavaScript Beautifier
FreeFormatter is a complimentary suite of online tools designed specifically for developers. It offers a range of utilities aimed at assisting programmers in crafting high-quality code, including an HTML formatter, XML formatter, JSON formatter, and more. Additionally, it features a tool known as JavaScript Beautifier, which aids in the formatting of JavaScript code.
It has the capability to format JavaScript files based on your selected indentation level. There are four available indentation levels: tabs, four spaces, three spaces, and two spaces. Additionally, it offers several brace styles, including expanded, collapsed, or expanded with line breaks. You have the flexibility to select any brace style that meets your needs.
You have two methods available for formatting your code. You can either paste the code directly into the JavaScript beautifier or opt to upload a file. Subsequently, you can select the file encoding, define the indentation level, and specify the bracket style. Once you have made these selections, simply click the Beautify JavaScript button to format your code.
Code Beautify
This tool serves as a code formatter that is utilized for the purpose of formatting source code. It has the capability to format code written in multiple programming languages, including but not limited to JavaScript, SQL, XML, CSS, and others.
You need to identify the programming language that activates the formatter's interface. For JavaScript, Code Beautify offers a utility known as JavaScript Beautifier. Users can either input the source code directly, upload a file, or input a URL. Once you have done this, simply click on the "run" button to format the code. Additionally, it offers a range of other tools that can assist you in formatting your code.
JS Beautify
This is a JavaScript code beautifier that serves the purpose of enhancing the readability of your code. You have the option to either input your code directly into the designated area of the beautifier or upload a file containing your code.
It offers a range of configurable options that can be tailored to your requirements. You have the ability to specify the indentation style, choosing from a tab character or indentation levels of 2, 3, 4, or 8 spaces. Additionally, it enables you to establish newlines between tokens, control line wrapping, and manage the placement of braces.
Conclusion:
We have explored the JavaScript formatter that aids in creating clear and standardized JavaScript code. Numerous code formatters are available for formatting JS code, including Prettier, JS Beautify, Code Beautify, and others.