transform string to int javascript 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: intval js

parseInt(value);

let string = "321"
console.log(string); // "321" <= string

let number = parseInt(string);
console.log(number) // 321 <=int

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: javascript string to integer

<script language="JavaScript" type="text/javascript"> 
var a = "3.3445";
var c = parseInt(a);
alert(c);
</script>

Example 6: string to int javascript

var text = '3.14someRandomStuff';
var pointNum = parseFloat(text);
// returns 3.14