what is the difference between '==' and '==='?

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Javascript === vs == : Does it matter which “equal” operator I use?

Not really relative to any type of code, just in general?

score 6 · Answer 1 · answered Apr 01 '11 at 19:32

6

usually === also represents equality of type.

so:

   1 == "1" //true
   1 === "1" //false

answered Apr 01 '11 at 19:32

Naftali

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I just upvoted this and a pink unicorn appeared and put a balloon on it.. Am I hallucinating? – The Muffin Man Apr 01 '11 at 19:34
@Nick , its an april fools thing for all upvotes ^_^ – Naftali Apr 01 '11 at 19:34

score 3 · Accepted Answer · answered Apr 01 '11 at 19:32

3

=== is the identical operator; it returns true when both the value and the type of the two operands are the same. == is the equal operator; it does not check types, just values.

Read more here.

answered Apr 01 '11 at 19:32

Jon

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score 1 · Answer 3 · answered Apr 01 '11 at 19:32

1

=== compares the value as well as type of variable
== doesn't compare type

answered Apr 01 '11 at 19:32

simshaun

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what is the difference between '==' and '==='?

3 Answers3