function _isEqualArray(a, b) {
        if (a === b) {
            return true;
        }
        if ((a === undefined) || (b === undefined)) {
            return false;
        }
        var i = a.length;
        if (i !== b.length){
            return false;
        }
        while (i--) {
            if (a[i] !== b[i]) {
                return false;
            }
        }
        return true;
    }
function _isEqualArray(a, b) {
        if (a === b) {
            return true;
        }
        if ((a === undefined) || (b === undefined)) {
            return false;
        }
        var i = a.length;
        if (i !== b.length){
            return false;
        }
        while (i--) {
            if (a[i] !== b[i]) {
                return false;
            }
        }
        return true;
    }
function _isEqualArray ( a , b ) { if ( a === b ) { return true ; } if ( ( a === undefined ) || ( b === undefined ) ) { return false ; } var i = a . length ; if ( i !== b . length ) { return false ; } while ( i -- ) { if ( a [ i ] !== b [ i ] ) { return false ; } } return true ; }
Compares two arrays for equality.
Compares two arrays for equality .