actor/base/src/main/resources/js/helpers.js
function $range(start, length) {
    if (arguments.length === 1) {
        length = arguments[0];
        start = 0;
    }
    return Array.apply(null, Array(length)).map(function (_, index) {
        return index + start;
    });
}
function $range(start, length) {
    if (arguments.length === 1) {
        length = arguments[0];
        start = 0;
    }
    return Array.apply(null, Array(length)).map(function (_, index) {
        return index + start;
    });
}
function $range ( start , length ) { if ( arguments . length === 1 ) { length = arguments [ 0 ] ; start = 0 ; } return Array . apply ( null , Array ( length ) ) . map ( function ( _ , index ) { return index + start ; } ) ; }
Create and return an array of integers.
Usage:
$range(5, 3); // [5,6,7]
$range(5);    // [0,1,2,3,4]
Create and return an array of integers . Usage : $range ( 5 3 ) ; // [ 5 6 7 ] $range ( 5 ) ; // [ 0 1 2 3 4 ]