zip two arrays Javascript [duplicate]

Question

I have two arrays in javascript:

var array1 = ["a","b","c"];
var array2 = ["e","f","g"];

And I want the resulting array to be like this:

array3 = ["a","e","b","f","c","g"];

Any way to do this?

Answer 1

Will a straightforward loop do it?

array3 = new Array();

for(var i = 0; i < array1.length; i++)
{
    array3.push(array1[i]);
    array3.push(array2[i]);
}

Answer 2

You can try with concat() method:

var array1 = ["a","b","c"];
var array2 = ["e", "f","g"];

var array3 = array1.concat(array2); // Merges both arrays

For your specific requirement, you have to follow this:

function mergeArrays(a, b){
    var ret = [];

    for(var i = 0; i < a.length; i++){
        ret.push(a[i]);
        ret.push(b[i]);
    }
    return ret;
}