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Why do I get “a label can only be part of a statement and a declaration is not a statement” if I hav
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The language standard simply doesn't allow for it. Labels can only be followed by statements, and declarations do not count as statements in C. The easiest way to get around this is by inserting an empty statement after your label, which re...
When to use enumerateObjectsUsingBlock vs. for
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Ultimately, use whichever pattern you want to use and comes more naturally in the context.
While for(... in ...) is quite convenient and syntactically brief, enumerateObjectsUsingBlock: has a number of features that may or may not prove interesting:
enumerateObjectsUsingB...
Error-Handling in Swift-Language
... thing I noticed is that there are no exceptions.
So how do they do error handling in Swift? Has anyone found anything related to error-handling?
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How to find the created date of a repository project on GitHub?
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@legends or someone else, suggestions for converting to human readable timestamps?
– jasonleonhard
Sep 12 '19 at 21:29
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Is cout synchronized/thread-safe?
...ate locking. However, do things like cout get special treatment in the standard library?
4 Answers
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How to get a property value based on the name
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"Cannot convert from String to BindingFlags"
– Christine
Jul 1 '16 at 22:46
6
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How to add a “readonly” attribute to an ?
.... However, the string 'readonly' is also a truthy value when automatically converted to a boolean, so the above still works.
– bobince
Sep 11 '09 at 17:00
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Check if a div exists with jquery [duplicate]
...he selector doesn't find anything then length === 0 which is "falsy" (when converted to bool its false). So if it finds something then it should be "truthy" - so you don't need to check for > 0. Just for it's "truthyness"
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How do I use Linq to obtain a unique list of properties from a list of objects?
...operty. I'd like to be able to do this without looping through each object and pulling out the unique ids that I find.
5 An...
How to tell if a string contains a certain character in JavaScript?
...tive does
~N => -(N+1). Use it with double negation !! (Logical NOT) to convert the numbers in bools:
!!~"FooBar".indexOf("oo"); // true
!!~"FooBar".indexOf("foo"); // false
!!~"FooBar".indexOf("oo", 2); // false
sh...