Remove TypedArray fill polyfill

[Tyriar]

xterm.js/src/common/TypedArrayUtils.ts

Lines 9 to 39 in 43d8db7

	/**
	* polyfill for TypedArray.fill
	* This is needed to support .fill in all safari versions and IE 11.
	*/
	export function fill<T extends TypedArray>(array: T, value: number, start?: number, end?: number): T {
	// all modern engines that support .fill
	if (array.fill) {
	return array.fill(value, start, end) as T;
	}
	return fillFallback(array, value, start, end);
	}
	export function fillFallback<T extends TypedArray>(array: T, value: number, start: number = 0, end: number = array.length): T {
	// safari and IE 11
	// since IE 11 does not support Array.prototype.fill either
	// we cannot use the suggested polyfill from MDN
	// instead we simply fall back to looping
	if (start >= array.length) {
	return array;
	}
	start = (array.length + start) % array.length;
	if (end >= array.length) {
	end = array.length;
	} else {
	end = (array.length + end) % array.length;
	}
	for (let i = start; i < end; ++i) {
	array[i] = value;
	}
	return array;
	}