Function fill

tests/modules/files/flash/readwriteerase.js:57–61

(offset, byteLength, value)

function fill(offset, byteLength, value) {
	const b = new Uint8Array(byteLength);
	b.fill(value);
	f.write(offset, byteLength, b);
}

function check(offset, byteLength, value) {
	const b = new Uint8Array(f.read(offset, byteLength));