Apr 13, 2017 · I am trying to discern the difference between: if else and else if How do you use these? And when do you use them and when not?

Explains how to use "*ngIf else" in Angular for conditional rendering of HTML elements.

The need for else is pretty rare...typically you'd just put your ongoing, non-exception, code in the main begin block, before any rescues. See later answers for some legit esoteric uses of else.

One reason very old languages use this distinct syntax instead of "else if" is that the "else if" introduces a grammar ambiguity. Old parser generators were hard to teach about what to do …

Sep 6, 2023 · "One option is to code the else clause—with a null statement if necessary—to show that the else case has been considered. Coding null elses just to show that that case has been …

Feb 13, 2016 · Almost 10 years after this question has been asked and after programming with Python for 3 years, this is the first time I've seen the "for-else", "while-else" construct. I hope its …

Nov 4, 2011 · 20 No, ELSE is a catch-all. In your example, it's not clear why you would want to include a condition in the ELSE clause, since you've already checked the logically opposite …

Can you explain me why } must precede else or else if in the same line? Are there any other way of writing the if-else if-else statement in R, especially without brackets?

In your case, whether you need an else clause depends on whether you want specific code to run if and only if neither of condition1, condition2, and condition3 are true. else can be omitted for …

Writing an else block for every conditional statement demonstrates that you have considered the "what if", even if the else block is empty. This is important for safety / reliability reasons in my …