while-loop Archives - IT Nursery

Why is “while( !feof(file) )” always wrong?

TL;DR while(!feof) is wrong because it tests for something that is irrelevant and fails to test for something that you need to know. … Read more

Many Python programmers are probably unaware that the syntax of while loops and for loops includes an optional else: clause: for val in … Read more

I want to write a Bash script to process text, which might require a while loop. For example, a while loop in C: … Read more

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, … Read more

Question 1: Why does the following code compile without having a return statement? public int a() { while(true); } Notice: If I add … Read more

In the following program, if I set the variable $foo to the value 1 inside the first if statement, it works in the … Read more

Why does the following work fine? String str; while (condition) { str = calculateStr(); ….. } But this one is said to be … Read more

I’ve heard this quite a few times. Are JavaScript loops really faster when counting backward? If so, why? I’ve seen a few test … Read more

I have a script and want to ask the user for some information, but the script cannot continue until the user fills in … Read more