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In JavaScript, is '!=' the same as '!=='?

rated 0 times [ 101] [ 4] / answers: 1 / hits: 77059 / 15 Years ago, tue, december 22, 2009, 12:00:00

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Which equals operator (== vs ===) should be used in JavaScript comparisons?

What is the difference between != and !== operators in JavaScript?

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Is != the same as !== in JavaScript?

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kristiano

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3 Years ago

answered 15 Years ago turnerf · Accepted Answer

They are subtly not the same.

!= checks the value

!== checks the value and type

'1' != 1   // false (these two are the same)

'1' !== 1 // true (these two are **not** the same).

In the previous example. The first half of the expression is a string, the second half is an integer.