SubhanUllah Posted September 23, 2022 Report Posted September 23, 2022 When you use “=” you are assigning the value of something like for example a variable to something else. For example. let var1 = 'hello' var1 = 'world' console.log(var1) //outputs 'world', because we reassigned the value from 'hello' to 'world' Now == is used to check if two values are the same, but it does not check type, meaning that. ‘1’ is a string, because it’s wrapped in quotes. 1 is a number because it’s an integer and it is not wrapped in quotes. if we do for example. ‘1’ == 1 //output would be 'true' because the == operator is checking to see if '1' and 1, have the same value which is the number 1, it is not checking if '1' is a number, or if 1 is a string it's checking if '1' and 1 have the same value which is the number 1. To check for type we use the strict equality operator or === So in the previous example, == checks for value not for type, === checks for value AND type. Which means that ‘1’ === 1 would return “false” because ‘1’ is not a number it’s a string, and 1 is a number not a string. 1 === 1 returns ‘true’ ‘1’ === ‘1’ returns ‘true’ Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.