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while-loop

How can I make sense of the `else` clause of Python loops?

by IT Nursery

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

Tags for-loop, loops, python, while-loop

How to break out of a loop in Bash?

by IT Nursery

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

Tags bash, shell, while-loop

Are “while(true)” loops so bad? [closed]

by IT Nursery

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

Tags do-while, java, while-loop

Java method with return type compiles without return statement

by IT Nursery

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

Tags compilation, java, return, syntax, while-loop

Are loops really faster in reverse?

by IT Nursery

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

Tags for-loop, javascript, loops, performance, while-loop

A variable modified inside a while loop is not remembered

by IT Nursery

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

Tags bash, scope, sh, while-loop

Declaring variables inside or outside of a loop

by IT Nursery

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

Tags java, optimization, while-loop

How to check if all elements of a list match a condition?

by IT Nursery

I have a list consisting of like 20000 lists. I use each list’s 3rd element as a flag. I want to do some … Read more

Tags for-loop, list, python, while-loop

Are loops really faster in reverse?

by IT Nursery

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

Tags for-loop, javascript, loops, performance, while-loop

How can you run a command in bash over and over until success?

by IT Nursery

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

Tags bash, command, while-loop
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