truncate number to size in bytes

bitwiseTruncator.js

const bitwiseTruncator = length => number => number & (Math.pow(2, length)-1);

((length, cTestNumbers, cTestNumbersMaxSize=999999)=>{
	const numbers = Array.from({length: cTestNumbers}).map(()=>Math.ceil(Math.random()*cTestNumbersMaxSize))
	const truncatedNumbers = numbers.map(bitwiseTruncator(length))

	numbers.map((number)=>console.log(`was: ${number.toString(2)}`))
	truncatedNumbers.map((number)=>console.log(`now: ${number.toString(length).padStart(length, "0")}`))
})(3, 7)