syntax Archives - Page 5 of 15

How is “int main(){(([](){})());}” valid C++?

I recently came across the following esoteric piece of code. int main(){(((){})());} Reformat it as follows to make it more readable: int main(){ ...

May 18, 2022
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What does the question mark and the colon (?: ternary operator) mean in objective-c?

What does this line of code mean? label.frame = (inPseudoEditMode) ? kLabelIndentedRect : kLabelRect; The ? and : confuse me. 13 Answers 13

May 18, 2022
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SQL left join vs multiple tables on FROM line?

Most SQL dialects accept both the following queries: SELECT a.foo, b.foo FROM a, b WHERE a.x = b.x SELECT a.foo, b.foo FROM a ...

May 18, 2022
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“elseif” syntax in JavaScript

How can I achieve an elseif in a JavaScript condition? 8 Answers 8

May 18, 2022
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Syntax of for-loop in SQL Server

What is the syntax of a for loop in TSQL? 10 Answers 10

May 18, 2022
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Ruby – test for array

What is the right way to: is_array("something") # => false (or 1) is_array(...

May 17, 2022
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What does the exclamation mark mean in a Haskell declaration?

I came across the following definition as I try to learn Haskell using a real project to drive it. I don’t understand what ...

May 17, 2022
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Why should I use a semicolon after every function in javascript?

I’ve seen different developers include semicolons after functions in javascript and some haven’t. Which is best practice? function weLikeSemiColons(arg) { // bunch of ...

May 17, 2022
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What’s the u prefix in a Python string?

Like in: u'Hello' My guess is that it indicates “Unicode”, is that correct? If so, since when has it been available? 6 Answers ...

May 17, 2022
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Python: One Try Multiple Except

In Python, is it possible to have multiple except statements for one try statement? Such as : try: #something1 #something2 except ExceptionType1: #return ...

May 17, 2022
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