how to convert string to int js

1let string = "1";
2let num = parseInt(string);
3//num will equal 1 as a int

1var myInt = parseInt("10.256"); //10
2var myFloat = parseFloat("10.256"); //10.256

1// Method - 1 ### parseInt() ###
2var text = "42px";
3var integer = parseInt(text, 10);
4// returns 42
5
6// Method - 2 ### parseFloat() ###
7var text = "3.14someRandomStuff";
8var pointNum = parseFloat(text);
9// returns 3.14
10
11// Method - 3 ### Number() ###
12Number("123"); // returns 123
13Number("12.3"); // returns 12.3
14Number("3.14someRandomStuff"); // returns NaN
15Number("42px"); // returns NaN

1var myString = "869.99"
2var myFloat = parseFloat(myString)
3var myInt = parseInt(myString)

1//It accepts two arguments. 
2//The first argument is the string to convert. 
3//The second argument is called the radix. This is the base number used in mathematical systems. For our use, it should always be 10.
4
5
6var text = '42px';
7var integer = parseInt(text, 10);
8
9
10// returns 42

1var text = '42px';
2var integer = parseInt(text, 10);
3// returns 42
4let myNumber = Number("5.25"); //5.25