JAVASCRIPT

javascript convert number to binary

function dec2bin(dec){
    return (dec >>> 0).toString(2);
}

dec2bin(1);    // 1
dec2bin(-1);   // 11111111111111111111111111111111
dec2bin(256);  // 100000000
dec2bin(-256); // 11111111111111111111111100000000

string to binary javascript

// string to binary
parseInt(num.toString(2));

// binary to string
parseInt(num.toString(2), 2);

convert decimal to binary javascript

var n = 5;
n.toString(2); // "101"

javascript convert number to binary

Number(42).toString(2);

// "101010"

javascript integer to binary

function dec2bin(dec){
    return (dec >>> 0).toString(2);
}

dec2bin(1);    // 1
dec2bin(256);  // 100000000

string to binary javascript

let num = 2020;
let x = +num.toString(2);
console.log(x);