The flowchart here explains the complete working of do while loop in JavaScript. In JavaScript do while loop executes a statement block once and then repeats the execution until a specified condition evaluates to false. Initialization statement for a counter variable must be specified before starting while loop and increment of counter must be inside while block. Syntax. This JavaScript tutorial explains how to use the do-while loop with syntax and examples.
The do while loop also contains one condition which can true or false. P.S. The loop do..while repeats while both checks are truthy: The check for num <= 100 – that is, the entered value is still not greater than 100. The statement is given in the do while loop, the statement execute for one time after that it only gets executed when the condition is true. ; Once the flow starts, the process box in the … If the expression evaluates to true, the while statement executes the statement(s) in the while block. Then the while loop stops too. See the following example that uses the while statement: let count = 1; while (count < 10) { … do { statement block } while (condition); In while loop, the given condition is tested at the beginning, i.e. As you can see in the above example, while loop will execute the code block till i . The while statement evaluates expression, which must return a boolean value. 5 condition turns out to be false. before executing any of the statements within the while … JavaScript includes another flavour of while loop, that is do-while loop. In JavaScript, you use a do-while loop when you are not sure how many times you will execute the loop body and the loop body needs to execute at least once (as the condition to … If you run the above example, the loop will execute for infinite and print the number repeatedly with an increment of the value.. Java Do While Loop. Note that if you want to execute the statement a least one, and check the condition after each iteration, you should use the do-while statement. The do while loop works similar to while loop, where there are a set of conditions which are to be executed until a condition, is satisfied. The check && num is false when num is null or a empty string. do while.