In this article we show how to use thewhilekeyword to create loops in JavaScript. The while loop executes a block of code as long as a specified condition is true. The while keyword Thewhilekeyword creates a loo
JavaScript 只要指定条件为 true,循环就可以一直执行代码块。 while 循环 while 循环会在指定条件为真时循环执行代码块。 语法 while (条件) { 需要执行的代码 } 实例 本例中的循环将继续运行,只要变量 i 小于 5: 实例 while(i<5){x=x+"The number is"+i+"";i++;} 尝试一下 » 如果您忘记增加条件...
The While Loop Thewhileloop loops through a block of code as long as a specified condition is true. Syntax while(condition) { // code block to be executed } Example In the following example, the code in the loop will run, over and over again, as long as a variable (i) is less th...
JavaScript While 循环 只要指定条件为 true,循环就可以一直执行代码。 while 循环 While 循环会在指定条件为真时循环执行代码块。 语法 while (条件) { 需要执行的代码 } 实例 本例中的循环将继续运行,只要变量 i 小于 5: while (i<5) { x=x + "The number is " + i + ""; i++; } 亲自试一试 ...
This is where beginners make the most mistakes. For example, accidentally forgetting to increment the counter or having an incorrect predicate check can lead to an infinite loop. In this case the loop works endlessly and the program never stops. We then have to end it forcibly (it may someti...
In this article we show how to use the do keyword to create do...while loops in JavaScript. The do...while loop executes a block of code at least once before checking the condition. The do keywordThe do keyword is used to create a do...while loop in JavaScript. This loop executes ...
Javascript while loop TUTORIALWhile LoopThe JavaScript while loop consists of a condition and the statement block. while (condition) { ...statements... } The condition is evaluated. If the condition is true the statements are evaluated. If the statement is false we exit from the while loop....
In JavaScript while loop is simple, it executes its statments repeatedly as long as the condtion is true. The condtion is checked every time at the begining of the loop.
f='Find a phone number'q='Quit'phone_dict={}whileTrue:# Gets the user command every loop ...
If it is now “false”, the program exits the while-loop in Java and continues through the code. Example of a simple loop A simple example of a while-loop in Java is a counter that counts up to a certain value. It does this exactly until the specified value (the termination conditio...