Javascript - Get position of the element of the array

Question

For instance, a variable named arrayElements of array type contains [1,2,3,4].

How do i get the position of which that has the value \"3\" in the array variable besi

Answer 1

consider using indexOf, it returns the 0-based position of the element in the array.

e.g.

[1,2,3,4].indexOf(3); // produces 2

Note that this method is not available in IE 8 and below.