Arithmetic operators are used to perform arithmetic operations.
JavaScript Arithmetic Operators List:
| Operator | Description | Example |
| + | Addition | 30+20 = 50 |
| – | Subtraction | 30-10 = 20 |
| * | Multiplication | 10*10 = 100 |
| / | Division | 50/10 = 5 |
| Modulus (Remainder) | 50%7 = 1 | |
| ++ | Increment | var a=10; a++; Result into a = 11 |
| — | Decrement | var a=10; a–; Result into a = 9 |
JavaScript Arithmetic Operators Example:
<html>
<head>
<script type="text/javascript">
var a = 33;
var b = 10;
var c = "Test";
var linebreak = "<br />";
document.write("a + b = ");
result = a + b;
document.write(result);
document.write(linebreak);
document.write("a - b = ");
result = a - b;
document.write(result);
document.write(linebreak);
document.write("a / b = ");
result = a / b;
document.write(result);
document.write(linebreak);
document.write("a
result = a
document.write(result);
document.write(linebreak);
document.write("a + b + c = ");
result = a + b + c;
document.write(result);
document.write(linebreak);
a = ++a;
document.write("++a = ");
result = ++a;
document.write(result);
document.write(linebreak);
b = --b;
document.write("--b = ");
result = --b;
document.write(result);
document.write(linebreak);
</script>
</head>
<body>
</body>
</html>