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The do...while loop in JavaScript is used to execute a block of code at least once, and then repeatedly execute the block as long as a specified condition is true1.
Example
let i = 0;do {console.log(i);i++;} while (i < 5);In this example, the code block inside the do statement will execute once before the condition i < 5 is tested. If the condition is true, the loop will continue to execute2.
Important Considerations
Initialization: Ensure that the variable used in the condition is initialized before the loop starts.
Increment/Decrement: Update the variable within the loop to avoid infinite loops.
Semicolon: The while statement must be followed by a semicolon2.
Alternative Solutions
While Loop: Use a while loop if you need to check the condition before executing the code block.
For Loop: Use a for loop for more complex iterations.
JavaScript do/while Statement - W3Schools
The do...while statements combo defines a code block to be executed once, and repeated as long as a condition is true. The do...while is used when you want to run a code block at least one …
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JavaScript while and do...while Loop (with Examples) - Programiz
See more on programiz.comThe while loop repeatedly executes a block of code as long as a specified condition is true. The syntax of the whileloop is: Here, 1. The while loop first evaluates the condition inside ( ). 2. If the condition evaluates to true, the code inside { }is executed. 3. Then, the condition is evaluated again. 4. This process c…do...while - JavaScript | MDN - MDN Web Docs
Mar 13, 2025 · The do...while statement creates a loop that executes a specified statement as long as the test condition evaluates to true. The condition is evaluated after executing the …
Do While Loop in JavaScript - Scientech Easy
Feb 25, 2025 · The execution flowchart for the do-while loop in JavaScript is as shown in the below figure. From the do-while loop flowchart, it is clear that the loop body executes first, and then the loop conditional expression evaluates to …
Do While Loop in JavaScript | How Does Do while Loop …
Mar 17, 2023 · The flowchart here explains the complete working of do while loop in JavaScript. The do while loop works similar to while loop, where there are a …
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JavaScript while and do…while Loop - worldofitech
Jan 1, 2021 · JavaScript do…while Loop. The syntax of do…while loop is: do { // body of loop } while(condition) Here, The body of the loop is executed at first. Then the condition is evaluated. 2. If the condition evaluates to true, the body …
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JavaScript do-while Loop - Tuts Make
Jun 10, 2022 · JavaScript do while loop; In this tutorial, you will learn javaScript do while loop with help of syntax, flowchart and examples. The JavaScript do-while loop is also known as an exit …
JavaScript while and do...while Loop (With Examples)
6 days ago · While and do…while loop in JavaScript are similar to conditional statements, which refer to code blocks that execute if the given condition is true. In this chapter, we will focus on …
javascript do while - tutorial codeplay
do while statement in javascript (do while loop) In do while, the statements are executed first and then the condition is checked.
How to show a while loop using a flow chart in JavaScript?
Jul 30, 2019 · How to show a while loop using a flow chart in JavaScript? The purpose of a while loop is to execute a statement or code block repeatedly as long as an expression is true. Once …
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