index.js
function cloneArray(a) {
    var b = [], i = a.length
    while (i--) b[ i ] = a[ i ]
    return b
}
function cloneArray(a) {
    var b = [], i = a.length
    while (i--) b[ i ] = a[ i ]
    return b
}
function cloneArray ( a ) { var b = [ ] , i = a . length while ( i -- ) b [ i ] = a [ i ] return b }
Utility that clones an array.

@param {Array} a
@return {Array}
Utility that clones an array .