The Benefit of Using the For-Next Loop over the While-Wend Loop

The Benefit of Using the For-Next Loop over the While-Wend Loop

We all know that the For-Next and While-Wend loops execute statement(s) as long as the loop condition is true. However, there is a difference between the two. A loop condition is checked each time the While-Wend loop executes/iterates, whereas this is not the case with the For-Next loop (Loop condition is checked only once when this loop executes). Consider the following code:

 	Dim i,j	j = 10	For i = 0 to j		Response.Write i & "
" j = 12 Next

This loop will execute ten times rather than 12, even though the loop boundary value is changed with each iteration. Now consider the following code:

 	Dim i,j	j = 10	i = 0	While i <= j 		Response.Write i & "
" j = 12 Wend

The code is almost the same as the previous code, except that I’ve used while-wend loop. Notice again that the loop boundary value is changing with each iteration. This will make this loop execute 12 times. The reason is quite evident: in the While-Wend loop, condition is checked with each iteration.

In a nutshell, if you are sure that loop boundary value will never change, then use the For-Next loop. This will greatly enhance the speed of your code. Otherwise, use the While-Wend loop.

Share the Post:
XDR solutions

The Benefits of Using XDR Solutions

Cybercriminals constantly adapt their strategies, developing newer, more powerful, and intelligent ways to attack your network. Since security professionals must innovate as well, more conventional endpoint detection solutions have evolved

AI is revolutionizing fraud detection

How AI is Revolutionizing Fraud Detection

Artificial intelligence – commonly known as AI – means a form of technology with multiple uses. As a result, it has become extremely valuable to a number of businesses across

AI innovation

Companies Leading AI Innovation in 2023

Artificial intelligence (AI) has been transforming industries and revolutionizing business operations. AI’s potential to enhance efficiency and productivity has become crucial to many businesses. As we move into 2023, several

data fivetran pricing

Fivetran Pricing Explained

One of the biggest trends of the 21st century is the massive surge in analytics. Analytics is the process of utilizing data to drive future decision-making. With so much of

kubernetes logging

Kubernetes Logging: What You Need to Know

Kubernetes from Google is one of the most popular open-source and free container management solutions made to make managing and deploying applications easier. It has a solid architecture that makes

ransomware cyber attack

Why Is Ransomware Such a Major Threat?

One of the most significant cyber threats faced by modern organizations is a ransomware attack. Ransomware attacks have grown in both sophistication and frequency over the past few years, forcing

data dictionary

Tools You Need to Make a Data Dictionary

Data dictionaries are crucial for organizations of all sizes that deal with large amounts of data. they are centralized repositories of all the data in organizations, including metadata such as