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1 maj 2024 · The while statement creates a loop that executes a specified statement as long as the test condition evaluates to true. The condition is evaluated before executing the statement. Try it. Syntax. js. while (condition) . statement. condition. An expression evaluated before each pass through the loop.
Syntax. do { // code block to be executed. } while (condition); Example. The example below uses a do while loop. 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: Example. do { text += "The number is " + i; i++; } while (i < 10); Try it Yourself »
19 cze 2022 · The while loop has the following syntax: while (condition) { // code // so-called "loop body" } While the condition is truthy, the code from the loop body is executed. For instance, the loop below outputs i while i < 3: let i = 0; while (i < 3) { // shows 0, then 1, then 2 alert ( i ); i++; }
8 gru 2022 · Przykładowo, jeśli chcemy wypisać w konsoli liczby od 1 do 10, to możemy użyć pętli while w następujący sposób: var i = 1; while (i <= 10) { console.log(i); i++; } W powyższym przykładzie tworzymy zmienną i i zwiększamy jej wartość o 1 po każdym przejściu przez pętlę .
In this tutorial, you will learn about the while loop, how to use it in JavaScript with the flow diagram and examples. While loop Condition is evaluated before execution enters the loop body.
With a while loop, you can execute code repeatably as long as a certain condition is fulfilled. It is written with the while keyword followed by a condition wrapped in round brackets and a code block that contains the body of the loop wrapped in curly brackets.
6 sie 2024 · while statement. A while statement executes its statements as long as a specified condition evaluates to true. A while statement looks as follows: js. while (condition) statement. If the condition becomes false, statement within the loop stops executing and control passes to the statement following the loop.
