How to use arithmetic operators in JavaScript-JS Tutorial-php.cn

How to use arithmetic operators in JavaScript

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Release： 2018-12-15 16:22:42

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The arithmetic operators in How to use arithmetic operators in How to use arithmetic operators in How to use arithmetic operators in JavaScript can be used to calculate and output values, including operations of addition, subtraction, multiplication, division, and remainders. In this article, we will introduce the usage of arithmetic operators in How to use arithmetic operators in How to use arithmetic operators in How to use arithmetic operators in JavaScript in detail. Next, we will Look at the specific content.

How to use arithmetic operators in How to use arithmetic operators in How to use arithmetic operators in JavaScript

The symbols of arithmetic operators addition, subtraction, multiplication, division and remainder are ", -, *, /, %" respectively.

Let’s look at a specific example

Addition operation

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>How to use arithmetic operators in How to use arithmetic operators in How to use arithmetic operators in JavaScript</title>
</head>
<body>
<script>
var x ;
x = 10 + 2;
console.log(x);
</script>
</body>
</html>

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The running results are as follows:

How to use arithmetic operators in How to use arithmetic operators in How to use arithmetic operators in JavaScript

##Subtraction operations

<script>
var x ;
x = 10-2;
console.log(x);
</script>

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The operation results are as follows:

How to use arithmetic operators in How to use arithmetic operators in JavaScript

Multiplication and division operations

<script>
var x ;
var y;
x = 10*2;
y=10/2;
console.log(x);
console.log(y);
</script>

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How to use arithmetic operators in How to use arithmetic operators in How to use arithmetic operators in JavaScript

Remainder operation

<script>
var x ;
x = 10%3;
console.log(x);
</script>

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The operation result is as follows: the remainder is 1

How to use arithmetic operators in JavaScript

The following Let’s take a look at

Assignment operator and unary operator

Assignment operator

According to the situation, such as x = x 10; Include the same variables in both terms. At this time, it will be very convenient to use the assignment operator

For x = x 10 can also be written as x = 10; of course, addition, subtraction, multiplication and division can be written like this, such as

Addition: x = x 10;→x = 10;

Subtraction: x＝x-10;→x - = 10;

Multiplication: x = x * 10;→x * = 10;

Division: x＝x/10;→x/＝10;

Remainder: Let’s look at the specific code

<script>
var x ;
x = 10%3;
x+=10;
console.log(x);
</script>

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The running result is as follows

In the code, first assign the value of 10 divided by 3 and the remainder 1 to x, and x will be is 1, then execute x =10, and the final result is 11. How to use arithmetic operators in JavaScript

Unary operator

One operator includes "(increment by 1)" and "--(decrement by 1)"

Let's take a look at the details The example

The code is as follows

<script>
var x ;
x = 10%3;
x+=10;
x++;
console.log(x);
</script>

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The running effect is as follows:

11 plus 1 results in 12, If it is x--; the result will be 10. How to use arithmetic operators in JavaScript

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