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This article mainly introduces the JavaScript switch statement how to use the relevant knowledge, the content is detailed and easy to understand, the operation is simple and fast, has a certain reference value, I believe everyone will read this JavaScript switch statement how to use the article will have some gains, let's take a look at it.

JavaScriptswitch statement

The switch statement is used to perform different actions based on different conditions.

JavaScriptswitch statement

Use the switch statement to select one of several blocks of code to execute.

syntax

switch(n)

{

case 1:

Execute Code Block 1

break;

case 2:

Execute Code Block 2

break;

default:

Code that executes differently from case 1 and case 2

}

How it works: First set the expression n (usually a variable). The value of the expression is then compared to the value of each case in the struct. If there is a match, the code block associated with the case is executed. Use break to prevent code from automatically running to the next case.

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