If the condition evaluates to false, the loop stops. Flowchart of while Loop Flowchart of JavaScript while loop Example 1: Display Numbers From 1 to 3 // initialize variable i let i = 1; // loop runs until i is less than 4 while (i < 4) { console.log(i); i += 1; } Run ...
Example while(i <10) { text +="The number is "+ i; i++; } Try it Yourself » If you forget to increase the variable used in the condition, the loop will never end. This will crash your browser. The Do While Loop Thedo whileloop is a variant of the while loop. This loop ...
When the test expression is evaluated tofalse,do..whileloop terminates. Flowchart of do...while Loop Example: Kotlin do...while Loop The program below calculates the sum of numbers entered by the user until user enters 0. To take input from the user,readline()function is used.Recommended R...
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 ...
The condition is evaluated. If the condition is true the statements are evaluated. If the statement is false we exit from the while loop. Let us take a simple example below that prints the number from 0 to 10. <!-- /* *** Example While loop *** */...
JavaScript While 循环JS For JS Break 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++...
<!DOCTYPE html> JavaScript do while statement : Example-1 JavaScript : do while statement The do while loop calculate the sum of even numbers between 0 to 10. Output will be displayed here. CopyJS Codevar x = 1; var y = 0; var z = 0; document.getElementById("result...
JavaScript do...while Loop ❮PreviousJavaScriptStatementsNext❯ Example Execute a code block once, an then continue if condition (i < 5) is true: lettext =""; leti =0; do{ text += i +""; i++; } while(i <5); Try it Yourself » Description...
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++; }...
So, here’s what our while loop looks like after getting it tofollow good programming conventions (‘best practices’): vari=0;while(i<5){alert('Hi!');i++;} Believe it or not, there is a much faster, better and easier way to do this using JavaScript! It’s by using afor loop...