how to get an integer from a string in javascript code example

Example 1: Javascript string to int

var myInt = parseInt("10.256"); //10
var myFloat = parseFloat("10.256"); //10.256

Example 2: js get number from string

thenum = "foo3bar5".match(/\d+/)[0] // "3"

Example 3: string to number js

let myNumber = Number("5.25"); //5.25

Example 4: javascript integer to string

var num = 15;
var n = num.toString();