---
title: "Loop in JavaScript"
description: "In this section we will learn about following loops in JavaScript:For loopWhile loopDo while loopContinue statementBreak statementFor loop in JavaScri"
author: "Jonas Stuart"
published: 2016-07-06
updated: 2018-03-16
canonical: https://www.mindstick.com/blog/11177/loop-in-javascript
category: "java"
tags: ["javascript", "java"]
reading_time: 5 minutes
---
# Loop in JavaScript
In this section we will learn about following loops in [JavaScript](https://www.mindstick.com/articles/874/how-to-create-watermark-text-for-textbox-by-using-javascript):
- [For loop](https://www.mindstick.com/forum/12568/android-for-loop-not-working-in-main-thread)
- [While loop](https://www.mindstick.com/forum/34579/while-loop-in-python)
- Do while loop
- Continue statement
- [Break statement](https://www.mindstick.com/forum/161303/how-does-the-break-statement-work-in-java)
**For loop in JavaScript**
For loop is executed for a specified number of times. It has three important parts:
- The loop [initialization](https://www.mindstick.com/interview/160/what-is-the-difference-between-assignment-and-initialization) is the first part where we initialize our counter to a starting value. The initialization is executed before the loop begins.
- The test statement is used to test the [condition](https://www.mindstick.com/forum/12711/select-query-with-and-condition) whether it is true or not. If the condition is true, then the code block inside the loop will be executed, otherwise if the condition is false the control will come out of the loop.
- The iteration statement is a final step in which you can increase or decrease your counter.
Following is the syntax of for loop:
**Syntax**
```
for (state 1; state 2; state 3) {
statement to be executed
}
```
**Following is the example of for loop:**
**Code [implementation](https://www.mindstick.com/forum/33764/how-to-implementation-of-class-in-c-sharp)**
```
```
## While loop In JavaScript
The while loop execute the code till the test [expression](https://www.mindstick.com/articles/1861/sqlite-expressions) is true and when the expression becomes false loop terminates. Following is the syntax of while loop in JavaScript:
**Syntax**
```
while (expression){
code block to be executed if expression is true
}
```
**\**
## Following is the example of while loop in JavaScript:
## Code implementation
```
```
## Code output
The number is 10
The number is 11
The number is 12
The number is 13
The number is 14
The number is 15
The number is 16
The number is 17
The number is 18
The number is 19\
**Do while loop in JavaScript**
Do while loop will execute the statement once, before [checking if](https://www.mindstick.com/forum/34435/checking-if-file-exists-in-asp-dot-net-mvc-4) the condition is true, and if the condition is true it will continue to execute till the condition becomes false. Following is the syntax of do while loop in JavaScript:
**Syntax**
```
do {
statement to be executed
}
while (condition);
```
Following is the example of do while loop in JavaScript:
**Code Implementation**
```
```
**\****Code output:**
The number is 10The number is 11The number is 12The number is 13The number is 14The number is 15The number is 16The number is 17The number is 18The number is 19
**Continue statement**
The **continue** statement immediately start the next iteration of the loop and leave the remaining code block. When a **continue** statement is executed, the [program flow](https://www.mindstick.com/forum/159232/what-is-an-exception-in-java-and-how-does-it-differ-from-a-regular-program-flow) moves to the loop check expression and if the condition remains true, then it starts the next iteration, otherwise the control comes out of the loop. Following is the example of continue statement:
**Code Implementation**
```
```
## Code output
The number is 10The number is 11The number is 12 The number is 13The number is 14The number is 16The number is 17The number is 18The number is 19\
## Break Statement
The break statement is used to terminate the statement prematurely. These type of statement are situated inside the statement. It gives you full control and whenever you want to come out from the statement you can by using break statement. Following is the example of break statement:
**Code Implementation**
```
```
**Code output**
The number is 10The number is 11The number is 12\
---
Original Source: https://www.mindstick.com/blog/11177/loop-in-javascript
Copyright © MindStick Software Pvt. Ltd. This Markdown version is provided for developers, AI systems, and offline reading.