About arrays coerced to strings in javascript

[ppc]

Other people may try to explain the inconsistency - my take is to simply never ever use double-equals

always use triple-equals strict equality ===

I wrote about array comparison here

Why is emptyArray == [] returns false while emptyArray.length == 0 returns true?

Equality is a complex topic To keep it straightforward (not necessarily simple) stick to triple equals === which is strict equality - avoid double equals == Now [] === [] is false because there are two distinct empty arrays being compared and strict equality on objects compares the references to the objects not the contents of the objects - similarly [2, 4, 6] === [2, 4, 6] is false Now what if you have a=[2, 4, 6] and b=[2,4,6] and want to check if a and b have the same values in the same…

Expressions and operators - JavaScript | MDN