if (!Array.prototype.fill) {
    Array.prototype.fill = function (value) {
        var O = Object(this);
        var len = parseInt(O.length, 10);
        var start = arguments[1];
        var relativeStart = parseInt(start, 10) || 0;
        var k = relativeStart < 0
            ? Math.max(len + relativeStart, 0)
            : Math.min(relativeStart, len);
        var end = arguments[2];
        var relativeEnd = end === undefined
            ? len
            : (parseInt(end, 10) || 0);
        var final = relativeEnd < 0
            ? Math.max(len + relativeEnd, 0)
            : Math.min(relativeEnd, len);
        for (; k < final; k++) {
            O[k] = value;
        }
        return O;
    };
}
if (!Array.from) {
    Array.from = function (iterable, mapFn, thisArg) {
        var results = [];
        if (iterable.next) {
            // Iterator objects
            for (var step = null;; step = iterable.next()) {
                if (step.done) {
                    break;
                }
                else {
                    results.push(step.value);
                }
            }
        }
        else {
            // Array-like objects
            results = [].slice.call(iterable);
        }
        if (mapFn) {
            results = results.forEach(mapFn, thisArg);
        }
        return results;
    };
}
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