til/javascript/compare-the-equality-of-two-date-objects.md

Compare The Equality Of Two Date Objects

Equality can always feel like a bit of a moving target in JavaScript. Comparing two objects, even if visually/conceptually identical, will resolve to being not equal.

To compare two Date objects, you first need to convert them to something we can check for equality -- numbers. This can be done with getTime().

> now = Date.now()
> today1 = new Date(now)
> today2 = new Date(now)
> today1 === today2
false
> today1.getTime() === today2.getTime()
true

With Date objects, you can directly use <, >, <=, and >=.

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