decimal points maths in javascript code example

Example 1: javascript convert int to float with 2 decimal places

float_num.toFixed(2);

Example 2: round number to 2 symbols after comma

let num = Number(0.005) // The Number() only visualizes the type and is not needed
let roundedString = num.toFixed(2); // => "0.01"
let rounded = Number(roudedString); // => 0.01
// toFixed() returns a string (often suitable for printing already)