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While loop in JavaScript: JavaScript’s while loop syntax is similar to Python’s. It starts with the keyword while, followed by a condition enclosed in parentheses. The loop continues executing as long as the condition evaluates to true. JavaScript. let count = 0; while (count < 5) { console.log(count); count++; }
Example Get your own Python Server. Print i as long as i is less than 6: i = 1. while i < 6: print(i) i += 1. Try it Yourself ». Note: remember to increment i, or else the loop will continue forever. The while loop requires relevant variables to be ready, in this example we need to define an indexing variable, i, which we set to 1.
while Loop Syntax while condition: # body of while loop. Here, The while loop evaluates condition, which is a boolean expression.; If the condition is True, body of while loop is executed. The condition is evaluated again. This process continues until the condition is False.; Once the condition evaluates to False, the loop terminates.; Tip: We should update the variables used in condition ...
Example 8: A while Loop with the else Clause. In Python, a while loop can be used with an else clause. When the condition in the while loop becomes false, the else block is executed. However, if there is a break statement inside the while loop block, the code exits the loop without executing the else block.
The various parts of the While loop are: 1. Test Expression: In this expression, we have to test the condition. If the condition evaluates to true then we will execute the body of the loop and go to update expression. Otherwise, we will exit from the while loop. Example: i <= 10. 2.
The while Loop is an entry-controlled loop in C programming language. This loop can be used to iterate a part of code while the given condition remains true. Syntax. The while loop syntax is as follows: while (test expression) { // body consisting of multiple statements} Example. The below example shows how to use a while loop in a C program
While Loop. The while loop loops through a block of code as long as a specified condition is true: Syntax. while (condition) {. // code block to be executed. } In the example below, the code in the loop will run, over and over again, as long as a variable (i) is less than 5: Example. int i = 0;
Java While Loop. The while loop loops through a block of code as long as a specified condition is true: Syntax while (condition) { // code block to be executed} In the example below, the code in the loop will run, over and over again, as long as a variable (i) is less than 5:
The do..while loop is similar to the while loop with one important difference. The body of do...while loop is executed at least once. Only then, the test expression is evaluated. The syntax of the do...while loop is: do {. // the body of the loop.
Here’s what’s happening in this example: n is initially 5.The expression in the while statement header on line 2 is n > 0, which is true, so the loop body executes.Inside the loop body on line 3, n is decremented by 1 to 4, and then printed. When the body of the loop has finished, program execution returns to the top of the loop at line 2, and the expression is evaluated again.