Is JavaScript's array.clear() not a function? [duplicate]

Answer 1

It was answered in Stack Overflow question How do I empty an array in JavaScript?.

Two examples from the answer:

var A = ['some', 'values', 'here'];

//Method 1

//(This was my original answer to the question)

A = [];




// Method 2 (as suggested by Matthew Crumley)

A.length = 0

And here is a nice write up on these two methods by Dr. Axel Rauschmayer.

Answer 2

drawnDivs = [];

Answer 3

You could alternately use the Prototype library and then, use Prototype's clear() method.

Answer 4

An optimized way to do it is:

while (arr.pop()) {}

See http://jsperf.com/kbk-clear-array/2.

Answer 5

Nope, it's not. But drawnDivs.length = 0 should work.