js convert string to binary code example

Example 1: 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

Example 2: javascript convert number to binary representation

// Javascript convert a number to a binary equivalent.
// Syntax: n.toString(radix)
// Note that radix in this syntax is the radix n will become.
let n = 100;
let binary = n.toString(2);
// => 1100100

// Convert a binary number to a radix of 10 equivalent.
// Syntax: parseInt(num, radix).
// Note that radix in this syntax is denoting i's current radix.
let i = 1100100;
let number = parseInt(i, 2);
// => 100

Example 3: string to binary javascript

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

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

Example 4: string to binary javascript

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