'use strict';
var range_two_for = function(a,b) {
    var c = []; 
    var l = 1;
    for (var i=a; i<b; i++) {
        for (var d=0; d<l; d++); {
            c[d-1] = i;
        }
        l= l+1;
    }
    return c;
}
var range_one_for = function(a,b) {
    var c = []; 
    for (var i=a; i<b; i++) {
        c.push(i);
    }
    return c;
}
var range_while = function(from, to) {
    var range = [];
    while (from <= to) {
        range.push(from++)
    }
    return range;
}
var range_no_push = function(a,b) {
    var c = new Array(Math.abs(a - b)); 
    for (var i = a; i <= b; i++) {
        c[i-a] = i;
    }
    return c;
}
var range_arrow_function = (a,b) => {
    var c = new Array(Math.abs(a - b)); 
    for (var i = a; i <= b; i++) {
        c[i-a] = i;
    }
    return c;
}


function test(f) {
    f(from, to);
}

var from = -500,
    to   = 500;