How to use double equals (==) operator In Javascript

This operator checks for value equality but not type equality. 

Example: In this example, we are checking the equality of the strings by using the double equals(==) operator.

Javascript
const numStr = '42';

if (numStr == 42) {
  console.log('The values are equal');
} else {
  console.log('The values are not equal');
}

Output
The values are equal

What is the correct way to check for string equality in JavaScript ?

Checking for string equality in JavaScript involves comparing two string values to determine if they are identical. This comparison is essential for various tasks, such as validating user inputs, implementing conditional logic, and ensuring data integrity within applications, leading to reliable and predictable program behavior.

A few methods are explained below:

Table of Content

  • Using strict equality operator
  • Using double equals (==) operator
  • Using String.prototype.localeCompare() method
  • Using String.prototype.match() method

Similar Reads

Method 1: Using strict equality operator

This operator checks for both value and type equality. it can be also called as strictly equal and is recommended to use it mostly instead of double equals...

Method 2: Using double equals (==) operator

This operator checks for value equality but not type equality....

Method 3: Using String.prototype.localeCompare() method

This method compares two strings and returns a value indicating whether one string is less than, equal to, or greater than the other in sort order....

Method 4: Using String.prototype.match() method

This method tests a string for a match against a regular expression and returns an array of matches....