how to write a function convert binary number javascript code example

Example 1: convert binary to decimal javascript

var digit = parseInt(binary, 2);

Example 2: 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