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a while-loop in javascript executes a section of code while a condition is true.
Eg. function () { var i = 0; while (i < 326) { alert(i++) } } In the above example, the an alert is given, showing the value of i so for as long as i is less than 326. In each loop, i is increased by 1.
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What are control structures used in javascript?
The control structures used in java script are if-statement, for-loop, for-in loop, while loop,do-while loop, switch-statement, with-statement. try-catch-finally statements.
Why does java script support more than one type of loop?
Think of a Javascript loop as a loop in a rollercoaster, which, as you know, makes you go back to the place you started the loop, and then continue. Javascript allows you to create sections of code that make the program handler to go back to the point specified, so instead of copying out a functions directions twice, you can tell the program to reference that section of code for the instructions, and then jump back to where it was.
Compare Do-While with While Statements?
A Do-While loop looks like this: do { loop body } while (condition); and a While loop looks like this: while (condition) { loop body } The main difference is that the loop body is always run once in the Do-While loop, then the condition is checked to see if the loop should keep running. In a While loop, the condition is checked first, and it will not run the loop body at all if the condition is false.
What is a loop type?
A Loop is a programming language construct that instructs the processor to repeat a sequence of operations a number of times until a specific condition is reached. There are different types of loops. They are: * for loop * while loop * do while loop
Why you need a for loop when you have already while loop or do while loop?
We need a for loop because the while and do-while loops do not make use of a control variable. Although you can implement a counter inside a while or do-while loop, the use of a control variable is not as self-evident as it is in a for loop. Aside from the use of a control variable, a for loop is largely the same as a while loop. However, it is quite different to a do-while loop, which always executes at least one iteration of the loop before evaluating the conditional expression. In a for and while loop, the conditional expression is always evaluated before entering the loop, which may result in the loop not executing at all.
What are control structures used in javascript?
The control structures used in java script are if-statement, for-loop, for-in loop, while loop,do-while loop, switch-statement, with-statement. try-catch-finally statements.
Why does java script support more than one type of loop?
Think of a Javascript loop as a loop in a rollercoaster, which, as you know, makes you go back to the place you started the loop, and then continue. Javascript allows you to create sections of code that make the program handler to go back to the point specified, so instead of copying out a functions directions twice, you can tell the program to reference that section of code for the instructions, and then jump back to where it was.
What is a nested loop in java?
A nested loop is a (inner) loop that appears in the loop body of another (outer) loop. The inner or outer loop can be any type: while, do while, or for. For example, the inner loop can be a while loop while an outer loop can be a for loop.
What are the similarities of while loop and a do while loop?
They both loop
Compare Do-While with While Statements?
A Do-While loop looks like this: do { loop body } while (condition); and a While loop looks like this: while (condition) { loop body } The main difference is that the loop body is always run once in the Do-While loop, then the condition is checked to see if the loop should keep running. In a While loop, the condition is checked first, and it will not run the loop body at all if the condition is false.
The while loop is a type of loop?
Is loop
What is a loop type?
A Loop is a programming language construct that instructs the processor to repeat a sequence of operations a number of times until a specific condition is reached. There are different types of loops. They are: * for loop * while loop * do while loop
Definition of do loop while in visual basic?
There are 3 type of loop 1 is for loop 2 is loop while 3 is loop untile
Why you need a for loop when you have already while loop or do while loop?
We need a for loop because the while and do-while loops do not make use of a control variable. Although you can implement a counter inside a while or do-while loop, the use of a control variable is not as self-evident as it is in a for loop. Aside from the use of a control variable, a for loop is largely the same as a while loop. However, it is quite different to a do-while loop, which always executes at least one iteration of the loop before evaluating the conditional expression. In a for and while loop, the conditional expression is always evaluated before entering the loop, which may result in the loop not executing at all.
Can you write switch statement with in while loop?
Yes. The same goes for for-loop and do-while-loop.
How do you convert a while loop to do-while loop?
A for loop is classified as an iteration statement. A simple example might be... For x = 1 To 10 'loop body Next x The same loop expressed as a while loop (classified as a control flow statement) could be... x = 0 Do While x < 11 'loop body x = x + 1 Loop .
How do i do a while loop inside my current loop?
while(predicate1) { while(predicate2) { ... } }
