In this example, thebreakstatement terminates the infinite loop when the user inputnumis0.If it isn't0, the loop keeps taking input and printing it to the screen. Working of JavaScript break Statement The image
ECMAScript 5.1 (ECMA-262)The definition of 'Break statement' in that specification. Standard ECMAScript 2015 (6th Edition, ECMA-262)The definition of 'Break statement' in that specification. Standard ECMAScript Latest Draft (ECMA-262)The definition of 'Break statement' in that specific...
JavaScriptBreak and Continue Thebreakstatement "jumps out" of a loop. Thecontinuestatement "jumps over" one iteration in the loop. The Break Statement You have already seen thebreakstatement used in an earlier chapter of this tutorial. It was used to "jump out" of aswitch()statement. ...
Break in a switch statementThe break keyword is also used in switch statements. main.js const fruit = 'apple'; switch (fruit) { case 'banana': console.log('Yellow fruit'); break; case 'apple': console.log('Red fruit'); break; default: console.log('Unknown fruit'); } ...
新建JS文件22-break.js,编写下方程序,运行看看效果吧。 代码语言:javascript 代码运行次数:0 //break语句for(count=0;count<10;count++){console.log("跑步第 "+(count+1)+"圈")if(count==4){break;//跳出整个循环,后面将不再执行}}//continue语句for(count=0;count<10;count++){if(count==4){contin...
Statement 1 在循环开始之前设置变量 (var i=0)。 Statement 2 定义循环运行的条件(i 必须小于 5)。 Statement 3 在每次代码块已被执行后增加一个值 (i++)。 2、for/in循环 for/in 语句循环遍历对象的属性: var person={fname:"Bill",lname:"Gates",age:56}; ...
JavaScript Labels As you have already seen, in the chapter about the switch statement, JavaScript statements can be labeled. To label JavaScript statements you precede the statements with a colon: label: statements The break and the continue statements are the only JavaScript statements that can "...
The break statement "jumps out" of a loop.The continue statement "jumps over" one iteration in the loop.The Break StatementYou have already seen the break statement used in an earlier chapter of this tutorial. It was used to "jump out" of a switch() statement.The break statement can ...
js中for循环中用break报错Uncaught SyntaxError: Illegal break statement? hxy 1819 发布于 2022-08-19 天津 let arr=document.getElementsByClassName("img"); let arr1=document.getElementsByClassName("index2") var len=0; var along=arr.length; function g() { if(len==along){len=0;}{ for(let ...
javascript break javascriptbreak标签引用 语法 label: statement 1. 2. 说明 label语句可以在代码中添加标签,以便将来使用。定义的标签可以在将来由break或continue语句引用。加标签的语句一般都要与for语句等循环语句配合使用。 // 示例 let count = 0;