Web Front-end
JS Tutorial
Summary of usage of break, continue and return statements in javascript_javascript skills
Summary of usage of break, continue and return statements in javascript_javascript skills
Since I have been reading javascript recently, let me briefly talk about some usages of the three of them in javascript
break statement:
break statement will cause the running program to exit immediately. Included in the end Layer loop or exit a switch statement. Since it is used to exit a loop or switch statement, this form of break statement is legal only when it appears in these statements.
If the termination condition of a loop is very complex, it is much easier to use the break statement to implement some conditions than to express all the conditions with a loop expression.
[Ctrl A Select all Note: If you need to introduce external Js, you need to refresh to execute
continue statement:
The continue statement is similar to the break statement. The difference is that instead of exiting a loop, it starts a new iteration of the loop.
The continue statement can only be used in the loop body of a while statement, do/while statement, for statement, or for/in statement. Using it elsewhere will cause an error! If you need to introduce external Js, you need to refresh to execute
]
return statement:
The return statement is used to specify the value returned by the function. The return statement can only appear within the function body, appearing anywhere else in the code will cause a syntax error! When the return statement is executed, function execution will stop even if there are other statements in the function body!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1389
52
Detailed explanation of the usage of return in C language
Oct 07, 2023 am 10:58 AM
The usage of return in C language is: 1. For functions whose return value type is void, you can use the return statement to end the execution of the function early; 2. For functions whose return value type is not void, the function of the return statement is to end the execution of the function. The result is returned to the caller; 3. End the execution of the function early. Inside the function, we can use the return statement to end the execution of the function early, even if the function does not return a value.
What is the execution order of return and finally statements in Java?
Apr 25, 2023 pm 07:55 PM
Source code: publicclassReturnFinallyDemo{publicstaticvoidmain(String[]args){System.out.println(case1());}publicstaticintcase1(){intx;try{x=1;returnx;}finally{x=3;}}}#Output The output of the above code can simply conclude: return is executed before finally. Let's take a look at what happens at the bytecode level. The following intercepts part of the bytecode of the case1 method, and compares the source code to annotate the meaning of each instruction in
How does Vue3 use setup syntax sugar to refuse to write return
May 12, 2023 pm 06:34 PM
Vue3.2 setup syntax sugar is a compile-time syntax sugar that uses the combined API in a single file component (SFC) to solve the cumbersome setup in Vue3.0. The declared variables, functions, and content introduced by import are exposed through return, so that they can be used in Vue3.0. Problems in use 1. There is no need to return declared variables, functions and content introduced by import during use. You can use syntactic sugar //import the content introduced import{getToday}from'./utils'//variable constmsg='Hello !'//function func
The role and use of the continue keyword in PHP
Jun 28, 2023 pm 08:07 PM
The role and use of the continue keyword in PHP In PHP programming, continue is a very useful keyword. It is used to control the execution flow of loop statements, allowing to skip the remaining code in the current loop and directly enter the execution of the next loop. The function of continue is to skip the code in the current iteration in the loop statement and start the next iteration directly. When the continue statement is executed, loop control will immediately go to the beginning of the loop body without executing continue.
Use the return keyword in JavaScript
Feb 18, 2024 pm 12:45 PM
Usage of return in JavaScript requires specific code examples In JavaScript, the return statement is used to specify the value returned from a function. Not only can it be used to end the execution of a function, it can also return a value to the place where the function was called. The return statement has the following common uses: Return a value The return statement can be used to return a value to the place where the function is called. Here is a simple example: functionadd(a,b){
Does continue jump out of the current loop or all loops?
Feb 02, 2023 pm 04:20 PM
continue is to jump out of the current loop. The continue statement is used to skip this loop and execute the next loop; when encountering the continue statement, the program will immediately recheck the conditional expression. If the expression result is true, the next loop will start. If the expression result is false, Exit the loop.
Detailed explanation of JavaScript function return values and return statements
Aug 04, 2022 am 09:46 AM
JavaScript functions provide two interfaces to interact with the outside world. The parameters serve as the entrance to receive external information; the return value serves as the outlet to feed back the operation results to the outside world. The following article will take you to understand the JavaScript function return value and briefly analyze the usage of the return statement. I hope it will be helpful to you!
How to use return statement in JavaScript
Feb 26, 2024 am 09:21 AM
How to use return in JavaScript requires specific code examples. In JavaScript, return is a very important keyword. It is usually used to return a value in a function or end the execution of a function. The return statement is used to return a value to the caller of the function and terminate the execution of the function. The return statement can be used anywhere in a function and can return any JavaScript data type, including numbers, strings, booleans,
