javascript force 2 digits code example

Example 1: javascript two character integer

var myNumber = 7;
var formattedNumber = ("0" + myNumber).slice(-2);
console.log(formattedNumber);

Example 2: react native float upto 2 digits

Use Math.round(num * 100) / 100

Edit: to ensure things like 1.005 round correctly, we use

Math.round((num + Number.EPSILON) * 100) / 100