Using a double equal sign you can test the equality of 2 or more operands. There are two operators checking equality in javascript ==
& ===
(with respectively !=
& !==
).
Note: Always use strict equals unless you have a good reason to use 2.
Link: https://dorey.github.io/JavaScript-Equality-Table/
JavaScript equality table
Simple example code.
Equality (==)
console.log(1 == 1); // true
console.log('hello' == 'hello'); // true
console.log('1' == 1); // true
console.log(0 == false); // true
Strict equality (===)
console.log(1 === 1); // true
console.log('hello' === 'hello'); // true
console.log('1' === 1); // false
console.log(0 === false); // false
JavaScript Equality Table Game: https://eqeq.js.org/
Do comment if you have any doubts or suggestions on this JS equal operator topic.
Note: The All JS Examples codes are tested on the Firefox browser and the Chrome browser.
OS: Windows 10
Code: HTML 5 Version