javascript int parse 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: parseint javascript

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

Example 4: parseint

// parseInt
parseInt("10");//------------ 10
parseInt("10.00");//--------- 10
parseInt("10.33")//--------- 10
parseInt("34 45 66")//------ 34
parseInt("   60   ")//------ 60
parseInt("40 years")//------ 40
parseInt("He was 40")//----- NaN
parseInt("10", 10)//-------- 10
parseInt("010")//----------- 10
parseInt("10", 8)//--------- 8
parseInt("0x10")//---------- 16
parseInt("10", 16)//-------- 16
// parseFloat
parseFloat("10")//-----------10
parseFloat("10.00")//--------10
parseFloat("10.33")//--------10.33
parseFloat("34 45 66")//-----34
parseFloat(" 60 ")//---------60
parseFloat("40 years")//-----40
parseFloat("He was 40");//----NaN
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Example 5: javascript type casting int

Number("3.14") // returns 3.14
false.toString()   // returns "false"
String(false)      // returns "false"

Example 6: int val javascript

var my_number = "43";
console.log(parseInt(my_number)); // result: 43

//syntax: parseInt(string, base);
parseInt("F", 16); // result: 15
parseInt("17", 8); // result: 15
parseInt("15", 10); // result: 15
parseInt(15.99, 10); // result: 15
parseInt("FXX123", 16); // result: 15
parseInt("1111", 2); // result: 15
parseInt("15*3", 10); // result: 15
parseInt("12", 13); // result: 15