Javascript Tonumber Code Example

Example 1: how to convert string to int js

let string = "1"; let num = parseInt(string); //num will equal 1 as a int

Example 2: Javascript string to int

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

Example 3: string to number javascript

// Method - 1 ### parseInt() ### var text = "42px"; var integer = parseInt(text, 10); // returns 42  // Method - 2 ### parseFloat() ### var text = "3.14someRandomStuff"; var pointNum = parseFloat(text); // returns 3.14  // Method - 3 ### Number() ### Number("123"); // returns 123 Number("12.3"); // returns 12.3 Number("3.14someRandomStuff"); // returns NaN Number("42px"); // returns NaN

Example 4: javascript convert string to number or integer

//It accepts two arguments.  //The first argument is the string to convert.  //The second argument is called the radix. This is the base number used in mathematical systems. For our use, it should always be 10.   var text = '42px'; var integer = parseInt(text, 10);   // returns 42

Example 5: string to number js

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

Example 6: string to number javascript

let str = "390"; let num = +str; console.log(num); // will give us int 390