do{ // code block to be executed } while(condition); Example The example below uses ado whileloop. The loop will always be executed at least once, even if the condition is false, because the code block is executed before the condition is tested: ...
JavaScript do...while Loop The do...while loop executes a block of code once, then repeatedly executes it as long as the specified condition is true. The syntax of the do...while loop is: do { // body of loop } while(condition); Here, The do…while loop executes the code inside...
The loop runs 5 times, logging numbers 0 through 4. $ node main.js 0 1 2 3 4 Do...while with false conditionThis example shows that the code block executes once even when the condition is initially false. main.js let count = 10; do { console.log('This runs once'); count++; }...
In JavaScript do while loop executes a statement block once and then repeats the execution until a specified condition evaluates to false.Syntaxdo { statement block } while (condition); In while loop, the given condition is tested at the beginning, i.e. before executing any of the statements...
log("Loop exited."); 在这个示例中,while (true)创建了一个无限循环。但在循环体内,我们检查counter的值。如果counter达到5,则执行break语句,从而跳出循环。 通过这种方式,你可以在JavaScript中根据特定条件跳出while循环。 🚀 高效开发必备工具 🚀 🎯 一键安装IDE插件,智能感知本地环境💡精准解答,深得你...
涉及到的 API 一览:For 循环、While 循环、Do-While 循环、For-Of、forEach、map、filter、reduce、some、every、find 测试方案 在测试中,将使用console.time和console.timeEnd方法来测量 API 的执行时间。伪代码如下: console.time ('描述信息') // 要测量的代码 ...
do/while 循环是 while 循环的变体。该循环会执行一次代码块,在检查条件是否为真之前,然后如果条件为真的话,就会重复这个循环。 语法 do { 需要执行的代码 } while (条件); 实例 下面的例子使用 do/while 循环。该循环至少会执行一次,即使条件是 false,隐藏代码块会在条件被测试前执行: ...
do/while 循环是 while 循环的变体。该循环会执行一次代码块,在检查条件是否为真之前,然后如果条件为真的话,就会重复这个循环。 语法 do { 需要执行的代码 } while (条件); 实例 下面的例子使用 do/while 循环。该循环至少会执行一次,即使条件是 false,隐藏代码块会在条件被测试前执行: do { x=x + "The...
The JavaScript While Loop Tutorial Syntax do{ code block to be executed } while(condition); Parameters ParameterDescription conditionRequired. The condition for running the code block. Iftrue, the loop will start over again, otherwise it ends. ...
循环js基础Html/CSS前端开发 do/while循环 语法: AI检测代码解析 do{ //执行的代码 }while(条件) 1. 2. 3. 如果条件为真的话,会重复这个循环 注释:该循环至少会执行一次,即使条件是false!!! 参考: http://www.w3school.com.cn/js/js_loop_while.asp...