Square root javascript without Math code example

Example 1: javascript square root

var x = Math.sqrt(num);

Example 2: square root javascript

console.log(Math.sqrt(4));     // 2
console.log(Math.sqrt(16));    // 4
console.log(Math.sqrt(64));    // 8
console.log(Math.sqrt(100));   // 10

Example 3: sqrt javascript

let number = 16
Math.sqrt(number);
//output = 4