What is the difference between a for loop and a while loop?

2021-03-15 by No Comments

What is the difference between a for loop and a while loop?

for loop: for loop provides a concise way of writing the loop structure. Unlike a while loop, a for statement consumes the initialization, condition and increment/decrement in one line thereby providing a shorter, easy to debug structure of looping.

What is difference between for loop and while loop in PHP?

Functionally, a for loop is equivalent to a while loop; that is, each can be rewritten as the other with no change to the outcome or side effects. However, each has different connotations. A while loop runs while a condition holds; the condition is static, though circumstances change. A for loop runs over a sequence.

What is while loop in LabVIEW?

LabVIEW consists of FOR Loop and WHILE Loop. These loops are used to control repetitive. operations. While Loop. A while loop is a control flow statement you use to execute a block of the subdiagram code repeatedly until a given Boolean condition is met.

Is a for loop or while loop faster?

Efficiency, and While vs For Using for: % Time elapsed: 0.0010001659 seconds. Using while: % Time elapsed: 0.026000023 seconds. The main reason that While is much slower is because the while loop checks the condition after each iteration, so if you are going to write this code, just use a for loop instead.

What is the function of While Loop?

The while loop is used to repeat a section of code an unknown number of times until a specific condition is met. For example, say we want to know how many times a given number can be divided by 2 before it is less than or equal to 1.

How do you stop a While Loop in LabVIEW?

Since LabVIEW 8.5, you can add a conditional terminal to configure a For Loop to stop when a Boolean condition or an error occurs. A For Loop with a conditional terminal executes until the condition occurs or until all iterations are complete, whichever happens first.

Why is a for loop more powerful than a while loop?

A for loop is more structured than the while loop. initialization: executed before the loop begins. expression: evaluated before each iteration, exits the loop when false. increment: executed at the end of each iteration.

How is a while loop different from a for loop?

Unlike a For Loop, While Loop execution does not depend on iteration count; thus, a While Loop executes indefinitely if the condition never occurs. For more information on what a While Loop is, including its components and configuration options, look into While Loops in LabVIEW Help.

How to create a while loop in LabVIEW?

Building a While Loop 1 Open a new VI. You can open a blank VI by selecting File»New VI 2 If the Functions palette is not visible, right-click any blank space on the block diagram to display a temporary version of the palette. 3 Select the while loop from the Structures palette under the Functions palette.

When to use initialization in a while loop?

The initialization, condition checking, and the iteration statements are written at the beginning of the loop. It is used only when the number of iterations is known beforehand. If the condition is not mentioned in the ‘for’ loop, then the loop iterates infinite number of times. The initialization is done only once, and it is never repeated.

What happens if the condition is not mentioned in the while loop?

If the condition is not mentioned in the ‘while’ loop, it results in a compilation error. If the initialization is done when the condition is being checked, then initialization occurs every time the loop is iterated through.