encodeURIComponent(string)

Description

The encodeURIComponent() function encodes a URI by replacing each instance of certain characters by one, two, three, or four escape sequences representing the UTF-8 encoding of the character (will only be four escape sequences for characters composed of two surrogate characters).

encodeURIComponent() - JavaScript | MDN

Parameters

encodeURIComponent() requires a single string to be encoded.

Usage

// Define a string with special characters
urlString = "Hello World! How are you?"

// Use encodeURIComponent to encode the URL component
encodedString = encodeURIComponent(urlString)

// Log the result to the console
log encodedString
// Output: Hello%20World!%20How%20are%20you%