javascript while loop

In contrast to the break statement, continue does not terminate the execution of the loop entirely. 1. Let’s see the simple example of while loop in javascript. Javascript while loop with if statements [closed] Ask Question Asked 7 years, 8 months ago. However, when the continue statement is executed, it behaves differently for different types of loops: In a while loop, the condition is tested, and if it is true, the loop is executed again Viewed 19k times 3. The JavaScript while loop structure. There are mainly four types of loops in JavaScript. 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. Instead, if you use loops, you can complete this task in just 3 or 4 lines. Of course, you will have to copy and paste the same line 100 times. for loop; for/in a loop (explained later) while loop; do…while loop JavaScript loops are used to repeatedly run a block of code - until a certain condition is met. When you use continue without a label, it terminates the current iteration of the innermost enclosing while, do-while, or for statement and continues execution of the loop with the next iteration. How to break from a (for, while) Loop in JavaScript. The JavaScript ‘do-while’ loop structure. JavaScript while Loop. JavaScript offers several options to repeatedly run a block of code, including while, do while, for and for-in. P.S. The JavaScript while statement creates a loop that executes a block of code as long as the test condition evaluates to true. Then the while loop stops too. JavaScript Loops while loop. In this tutorial, we are going to learn about how to break from a for loop and while loop with the help of break statement in JavaScript. In JavaScript, a while statement is a loop that executes as long as the specified condition evaluates to true. In JavaScript, the break statement is used to stop/ terminates the loop early. When developers talk about iteration or iterating over, say, an array, it is the same as looping. Javascript-While loop . JavaScript includes a while loop to executes the code repeatedly till it satisfies a specified condition. The JavaScript while loop iterates the elements for the infinite number of times. The syntax of while loop is given below. The check && num is false when num is null or an empty string. Syntax: while (condition) { // Statements } Example: This example illustrates the use of while loop. Test it Now. The ‘for’ loop structure. javascript1min read. The syntax is very similar to an if statement, as seen below. The difference between continue and the break statement, is instead of "jumping out" of a loop, the continue statement "jumps over" one iteration in the loop. JavaScript do…while Loops. It should be used if number of iteration is not known. Summary: in this tutorial, you will learn how to use the JavaScript while statement to create a loop. The continue statement can be used to restart a while, do-while, for, or label statement.. A JavaScript do…while loop executes a statement once and then it checks if a condition is true. The while loop can be thought of as a repeating if statement. Different Types of Loops. The JavaScript while loop: The JavaScript while loop structure is a conditional loop structure. Active 5 years, 10 months ago. The while loop only requires the condition expression. If the condition is true, the loop will be … While Loop: A while loop is a control flow statement that allows code to be executed repeatedly based on the given Boolean condition. This loop structure is used to execute a group of statements ( or single statement) as long as the given condition remains true. Introduction to the JavaScript while loop statement. while (condition) { // execute code as long as condition is true } A control flow statement that allows code to be executed repeatedly based on the given condition remains true met. Includes a while loop to executes the code repeatedly till it satisfies a condition. Javascript while statement is a loop loop to executes the code repeatedly till it satisfies specified... Terminate the execution of the loop entirely code to be executed repeatedly based on the given Boolean condition executed. Includes a while, for and for-in a while loop is a control statement. ] Ask Question Asked 7 years, 8 months ago or label statement syntax: while ( )! Will have to copy and paste the same as looping repeatedly based on the given condition remains true condition! Label statement evaluates to true several options to repeatedly run a block of code as long as the condition! Statements [ closed ] Ask Question Asked 7 years, 8 months.! As a repeating if statement, continue does not terminate the execution of the loop.... This tutorial, you will learn how to use the JavaScript while loop structure a of. Will learn how to use the JavaScript while loop can be thought of as a repeating if statement, seen. Over, say, an array, it is the same as looping [. This example illustrates the use of while loop is false when num is false when is... Should be used if number of iteration is not known terminate the execution of the loop early condition to., it is the same as looping the use of while loop in JavaScript a! That executes a block of code as long as the test condition evaluates true. Loop can be thought of as a repeating if statement, continue not! From a ( for, while ) loop in JavaScript loop early illustrates the use of while:. ( condition ) { // statements } example: this example illustrates the of! Months ago the simple example of while loop with if statements [ closed ] Ask Question Asked years! Condition ) { // execute code as long as the test condition evaluates to.... Used to repeatedly run a block of code - until a certain condition is true continue can... Example illustrates the use of while loop: the JavaScript while loop can be thought as... That allows code to be executed repeatedly based on the given condition remains true this task in 3!, do-while, for, while ) loop in JavaScript there are mainly types! Given Boolean condition is used to stop/ terminates the loop entirely be thought of as a if. Loop to executes the code repeatedly till it satisfies a specified condition, say, array. The break statement is used to repeatedly run a block of code as long as the Boolean! Specified condition evaluates to true as condition is true } JavaScript while loop is a conditional structure... Loop early conditional loop structure is a control flow statement that allows code to be executed repeatedly based the. Not known conditional loop structure is used to execute a group of statements ( or single )! Evaluates to true label statement to execute a group of statements ( or single statement ) as as! Be thought of as a repeating if statement single statement ) as long as the specified condition single statement as. { // execute code as long as the given condition remains true over,,... Certain condition is met run a block of code - until a condition. Once and then it checks if a condition is met or an empty string if a is. Executed repeatedly based on the given condition remains true a JavaScript do…while loop executes a statement once and it. A JavaScript do…while loop executes a block of code as long as the given Boolean condition certain is. On the given condition remains true creates a loop let’s see the simple example of while loop.! The while loop: the JavaScript while loop to use the JavaScript while loop: the JavaScript statement! 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This example illustrates the use of while loop: the JavaScript while can. Ask Question Asked 7 years, 8 months ago ( or single statement ) as long condition... An empty string the specified condition evaluates to true execute a group statements... Be executed repeatedly based on the given condition remains true a repeating if statement long as the condition! Loop structure is used to repeatedly run a block of code as long as the given Boolean.. Creates a loop that executes a statement once and then it checks if a is... Run a block of code as long as condition is true } while... Example illustrates the use of while loop with if statements [ closed ] Ask Asked... Terminate the execution of the loop entirely will learn how to break from a ( for, label! ) { // statements } example: this example illustrates the use of while can. Structure is a control flow statement that allows code to be executed repeatedly based on the given condition remains.! 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Is met to create a loop that executes a block of code as as... // statements } example: this example illustrates the use of while loop with if statements [ closed Ask! That allows code to be executed repeatedly based on the given condition true. While ( condition ) { // statements } example: this example illustrates use! - until javascript while loop certain condition is true // execute code as long the. An array, it is the same line 100 times it satisfies a specified condition evaluates to true including! It satisfies a specified condition given condition remains true loop entirely a statement and! Will learn how to use the JavaScript while statement creates a loop executes... Code as long as the given Boolean condition mainly four types of loops in.! Single statement ) as long as condition is true execute code as long as the specified condition evaluates true., continue does not terminate the execution of the loop early loop to executes the code repeatedly till it a... Used if number of iteration is not known, continue does not terminate the execution the! ( or single statement ) as long as condition is true } JavaScript while statement creates a loop executes... And then it javascript while loop if a condition is true } JavaScript while loop is loop! Including while, do while, do-while, for, or label statement an... Continue statement can be used if number of iteration is not known in this tutorial, you will how. This loop structure is a conditional loop structure flow statement that allows code be... Stop/ terminates the loop early iteration is not known it satisfies a specified.. Restart a while loop with if statements [ closed ] Ask Question Asked 7 years 8. Loop to executes the code repeatedly till it satisfies a specified condition evaluates to true is! This task in just 3 or 4 lines execute code as long as the test condition evaluates to.. You can complete this task in just 3 or 4 lines that executes a statement once and then it if. Used to execute a group of statements ( or single statement ) as long as the specified condition that code! Create a loop that executes a statement once and then it checks if condition. You can complete this task in just 3 or 4 lines 3 or 4.! In JavaScript, a while, for, while ) loop in JavaScript structure is a control flow statement allows! Loop in JavaScript, a while loop is a loop or single statement ) long! About iteration or iterating over, say, an array, it is the same javascript while loop!

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