how to add two numbers in javascript

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showing results for - "how to add two numbers in javascript"
Sophie
27 Apr 2018
1const num1 = 5;
2const num2 = 3;
3
4// add two numbers
5const sum = num1 + num2;
6
7// display the sum
8console.log('The sum of ' + num1 + ' and ' + num2 + ' is: ' + sum);
source
Cristina
02 Jul 2020
1let a = 4;
2let b = 5;
3document.write(a + b);
source
Isabell
16 Jul 2016
1//use parseFloat(x); to change string to number
2a=10;
3b=20;
4console.log(parseFloat(a)+parseFloat(b));//this will give a+b=30
5//while
6consle.log(a+b); //will give a+b=1020 [as String]
source
Francesca
27 Aug 2016
1<!--Add two integer numbers using JavaScript.-->
2<html>
3	<head>
4		<title>Add two integer numbers using JavaScript.</title>
5		<script type="text/javascript">
6			function addTwoNumbers(textBox1, textBox2){
7				var x=document.getElementById(textBox1).value;
8				var y=document.getElementById(textBox2).value;
9				var sum=0;
10				sum=Number(x)+Number(y);
11				alert("SUM is: " + sum);
12			}
13		</script>
14	</head>
15<body>
16	<h1>Add two integer numbers using JavaScript.</h1>
17	<b>Enter first Number: </b><br>
18	<input type="text" id="textIn1"/><br>
19	<b>Enter second Number: </b><br>
20	<input type="text" id="textIn2"/><br><br>
21	<input type="button" id="btnSum" value="Calculate SUM" onClick="addTwoNumbers('textIn1','textIn2')"/>
22</body>
23
24</html>
25
Cedric
25 Jul 2019
1var x = 2 + 3;
2//x = 5
Gianluca
18 May 2019
1var x = +y + +z;
2
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