How to use arithmetic operators in JavaScript
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.
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>
The running results are as follows:
##Subtraction operations
<script> var x ; x = 10-2; console.log(x); </script>
Multiplication and division operations
<script> var x ; var y; x = 10*2; y=10/2; console.log(x); console.log(y); </script>
Remainder operation
<script> var x ; x = 10%3; console.log(x); </script>
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 operatorFor x = x 10 can also be written as x = 10; of course, addition, subtraction, multiplication and division can be written like this, such asAddition: 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>
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. 
Unary operator
One operator includes "(increment by 1)" and "--(decrement by 1)"
Let's take a look at the details The exampleThe code is as follows
<script> var x ; x = 10%3; x+=10; x++; console.log(x); </script>
11 plus 1 results in 12, If it is x--; the result will be 10. 
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