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JavaScript Introducing JavaScript Finishing the Game Control the Flow with Conditional Statements

Posted by sulaiman abouabdah
sulaiman abouabdah
5,314 Points

The difference between =, ==, === in JavaScript?

https://teamtreehouse.com/library/control-the-flow-with-conditional-statements

I used == instead of === as what the video said and it did the same work

my question is: currect me if I am wrong = means placing the value on the right to the variable on the left of = sign === making sure that both sides are equivalent to each other what does == mean in JS?

1 Answer

lyndon
lyndon
14,665 Points

The "=" will assign a value (so using 'x = 10' will the value of x 10), the "==" will check if the value is equal (so 10 == "10" will be true, 1 == true will be true and "5.2 == "5.3" will be false), the "===" will check if the value AND type are equal (so 10 == "10" will now be false as one is a number, 'true === 1' will be false as the are not exactly the same and the other is a string and 5 === 5 is true as they are both numbers), so basically if you more want more accuracy use the "===" operator.

sulaiman abouabdah
sulaiman abouabdah
5,314 Points

Thank you so much. That was extremly helpful

lyndon
lyndon
14,665 Points

No Problem :)