What are the differences between if-else and else-if? [closed] IF a condition is true, do something, ELSE (otherwise) IF another condition is true, do something, ELSE do this when all else fails Note that there is no else if construct specifically, just if and else, but the syntax allows you to place else and if together, and the convention is not to nest them deeper when you do For example:
IF, ELSE IF, ELSE ou IF IF IF. Quando usar, qual a diferença? As demais respostas já explicam muito bem, mas gostaria de complementar com o seguinte: com frequência existem várias maneiras de se fazer a mesma coisa, sem que exista claramente um "melhor" ou "pior", de modo que cabe a você - pela sua experiência ou pelo seu feeling - decidir qual delas usar caso a caso
What is the correct syntax for else if? - Stack Overflow Obviously, in that context having a single-token directive is valuable, since parsing #else if <code> vs #else <code that could theoretically even be an if statement> would've complicated a syntax that was intended to be bog-simple
angular - How can I use *ngIf else? - Stack Overflow Just add new updates from Angular 8 For case if with else, we can use ngIf and ngIfElse <ng-template [ngIf]="condition" [ngIfElse]="elseBlock"> Content to render when condition is true < ng-template> <ng-template #elseBlock> Content to render when condition is false < ng-template>
if statement - use of else if in c++ - Stack Overflow 'else if' is generally to be preferred, because you can keep inserting or appending more of them indefinitely, or append an 'else', whereas with the other form you have to endlessly mess around with braces to get the same effect, and you risk altering the semantics, as indeed you have done in your second sample
What is the intended use of the optional else clause of the try . . . Try-except-else is great for combining the EAFP pattern with duck-typing: try: cs = x cleanupSet except AttributeError: pass else: for v in cs: v cleanup() You might think this naïve code is fine: try: for v in x cleanupSet: v clenaup() # <-- deliberate typo except AttributeError: pass
r - if - else if - else statement and brackets - Stack Overflow As hrbrmstr has mentioned: When the initial if is followed by a compound expression (indicated by the {} pair) the parser by default is going to expect the expression followed by else to be compound as well
How can I use else if with the preprocessor #ifdef? #ifdef CALC_MODE typedef MyCalcClass ChosenClass; #elifdef USER_MODE typedef MyUserClass ChosenClass; #else static_assert(false, "Define CALC_MODE or USER_MODE"); #endif So I can do #define CALC_MODE right before this I can resign the use of static_assert if needed How can I do this?