javascript convert number to binary
function dec2bin(dec){
return (dec >>> 0).toString(2);
}
dec2bin(1); // 1
dec2bin(-1); // 11111111111111111111111111111111
dec2bin(256); // 100000000
dec2bin(-256); // 11111111111111111111111100000000javascript convert number to binary
function dec2bin(dec){
return (dec >>> 0).toString(2);
}
dec2bin(1); // 1
dec2bin(-1); // 11111111111111111111111111111111
dec2bin(256); // 100000000
dec2bin(-256); // 11111111111111111111111100000000convert binary to decimal javascript
const binaryArrayToNumber = arr => {
let len = arr.length
let pow = []
let decimal = []
for(let i = 0; i <= len - 1; i++){
pow.unshift(i)
}
arr.forEach((x,index) => {
decimal.push(x*2**pow[index])
})
let toDecimal = decimal.reduce((acc, curr) => acc + curr, 0)
return toDecimal
};
console.log(binaryArrayToNumber([1, 0, 1, 1]))Copyright © 2021 Codeinu
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