The JavaScript Arithmetic Operators include operators like Addition, Subtraction, Multiplication, Division, and Modulus. You can use a single function for multiple functions to perform arithmetic operations in JavaScript.
The below table shows the JavaScript Arithmetic Operators with examples.
| Operators | Operation | Example |
|---|---|---|
| + | Addition | 10 + 2 = 12 |
| – | Subtraction | 10 – 2 = 8 |
| * | Multiplication | 10 * 2 = 20 |
| / | Division | 10 / 2 = 5 |
| % | Modulus – It returns the remainder after the division | 10 % 2 = 0 (Here remainder is zero). If it is 10 % 3 then it will be 1. |
JavaScript program to perform arithmetic operations using Functions
simple example code has 2 input fields and 5 buttons.
<!DOCTYPE html>
<html>
<body>
<script type="text/javascript">
function multiply(){
a=Number(document.my_cal.first.value);
b=Number(document.my_cal.second.value);
c=a*b;
document.my_cal.total.value=c;
}
function addition(){
a=Number(document.my_cal.first.value);
b=Number(document.my_cal.second.value);
c=a+b;
document.my_cal.total.value=c;
}
function subtraction(){
a=Number(document.my_cal.first.value);
b=Number(document.my_cal.second.value);
c=a-b;
document.my_cal.total.value=c;
}
function division(){
a=Number(document.my_cal.first.value);
b=Number(document.my_cal.second.value);
c=a/b;
document.my_cal.total.value=c;
}
function modulus(){
a=Number(document.my_cal.first.value);
b=Number(document.my_cal.second.value);
c=a%b;
document.my_cal.total.value=c;
}
</script>
<!-- Opening a HTML Form. -->
<form name="my_cal">
<!-- Here user will enter 1st number. -->
Number 1: <input type="text" name="first">
<br>
<!-- Here user will enter 2nd number. -->
Number 2: <input type="text" name="second">
<br><br>
<input type="button" value="ADD" onclick="javascript:addition();">
<input type="button" value="SUB" onclick="javascript:subtraction();">
<input type="button" value="MUL" onclick="javascript:multiply();">
<input type="button" value="DIV" onclick="javascript:division();">
<input type="button" value="MOD" onclick="javascript:modulus();">
<br><br>
<!-- Here result will be displayed. -->
Get Result: <input type="text" name="total">
</body>
</html>Output:
Do comment if you have any doubts or suggestions on this JS arithmetic operations topic.
Note: The All JS Examples codes are tested on the Firefox browser and the Chrome browser.
OS: Windows 10
Code: HTML 5 Version