Having a return statement directly inside a while loop will result in only one iteration being executed. (It makes your loop useless). However, if you replace this line with something like console.log(i);, it …

Mar 9, 2017 · The 2 below explain variable declaration hoisting but don't explain why you can't declare a variable inside a while condition (but you can, for example, in a for condition). Did you ever find a …

multiple conditions within a while loop - Javascript Asked 10 years, 1 month ago Modified 3 years, 10 months ago Viewed 25k times

Aug 18, 2010 · i'm trying to get my script to wait for user input (click of a button) before continuing, this is v feasible in other languages, but seems impossible in js. basically, i want the user to select an ...

while(false) is a useless code because it won't output any or do any at all. The while() loop will always check for boolean conditions and that means that the statement inside it must return true or false.

Oct 25, 2018 · The "while true" loop in javascript runs without any conditions until the break/return statement executes inside the loop while loop only runs if the condition we write return a true, but …

Jun 4, 2009 · The issue here is that JavaScript is a single-thread event-based model. While in a specific case, it might be nice to have the whole engine wait for a few seconds, in general it is bad practice. …

Jul 30, 2020 · A saída é: dentro 0 dentro 1 dentro 2 depois 3 Ou seja, o que está dentro do do...while é executado várias vezes, e o que está depois do while, somente uma vez. Mesmo que a condição do …

Oct 12, 2013 · And, use async: 'false' is a bad idea. I see no reason why properly structured code couldn't use asynchronous ajax calls here and not hang the browser while you're fetching this data. …

Sep 13, 2012 · Another way: the expression block of the while operator can be easily split up into a chain of comma-separated expressions expecting the loop to break once the last expression …