how to parse a binary from string in javascript code example

Example 1: javascript convert to and from binary

/* From decimal to binary (similar fo rother base) */
const num = 7;
num.toString(2); // output: "111"

/* From binary (similar fo rother base) to decimal */
parseInt("111", 2); // output: 7

Example 2: string to binary javascript

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