Converting a JavaScript number to a string is a common task in web development. In this tutorial, we will explore different ways of convert numbers to a string in JavaScript.
Converting string to number in JavaScript
Method 1: Convert string to number using toString() method
The simplest and most commonly used method to convert a JavaScript number to a string is by using the toString() method. The toString() method converts a number to a string.
Example toString() Method to convert number to string:
let number = 42;
let str = number.toString();
console.log(str); // Output: "42"
Method 2: Change number to string using String() Constructor
Another way to convert a number to a string is by using the String() constructor. The String() constructor converts a value to a string.
JavaScript Example:
let number = 42;
let str = String(number);
console.log(str); // Output: "42"
Method 3: Number to string using template literals
Template literals are a new way to define strings in JavaScript. They can also be used to convert a number to a string.
JavaScript Example:
let number = 42;
let str = `${number}`;
console.log(str); // Output: "42"
Method 4: Converting number to string using Concatenation
Another way to convert a number to a string is by using concatenation. We can concatenate an empty string with the number to convert it to a string.
Example:
let number = 42;
let str = "" + number;
console.log(str); // Output: "42"
Method 5: Use toPrecision() Method to convert number to string
The toPrecision() method converts a number to a string with a specified precision.
Example:
let number = 42.123456;
let str = number.toPrecision(5);
console.log(str); // Output: "42.123"
Method 6: toFixed() Method in JavaScript
The toFixed() method converts a number to a string with a specified number of decimal places.
JavaScript Example:
let number = 42.123456;
let str = number.toFixed(2);
console.log(str); // Output: "42.12"
Method 7: JavaScript number to string using Pad Start Method
The padStart() method adds padding to the beginning of a string. We can use this method to convert a number to a string with a specified length.
JavaScript Example:
let number = 42;
let str = number.toString().padStart(5, "0");
console.log(str); // Output: "00042"
Conclusion
These are some of the ways to convert a JavaScript number to a string.
Depending on the use case, you can choose the appropriate method.
The toString() method is the most commonly used method, but the other methods are also useful in certain situations.
