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UICollectionView reloadData not functioning properly in iOS 7
...e data on viewWillAppear. I could see the data and collection view reload call, but the UI was not updated. Forced the main thread (UI thread), and it magically starts working. This is only in IOS 7.
– Shaunti Fondrisi
Jan 2 '14 at 18:54
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How to safely call an async method in C# without await
...other than the "main" thread. This means you don't have to "wait" for the call to MyAsyncMethod() from the thread that calls MyAsyncMethod; but, still allows you to do something with an exception--but only if an exception occurs.
Update:
technically, you could do something similar with await:
try
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Difference between __str__ and __repr__?
...yClass(3) and MyClass("3").
The goal of __str__ is to be readable
Specifically, it is not intended to be unambiguous — notice that str(3)==str("3"). Likewise, if you implement an IP abstraction, having the str of it look like 192.168.1.1 is just fine. When implementing a date/time abstraction, t...
Split function equivalent in T-SQL?
...er). The b+1 makes a big difference. Tested here with space as delimiter, didn't work without this fix.
– JwJosefy
Dec 19 '16 at 17:47
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Why does Python use 'magic methods'?
...ilable, an object implements a method, def __len__(self) , and then it is called when you write len(obj) .
7 Answers
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Subprocess changing directory
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What your code tries to do is call a program named cd ... What you want is call a command named cd.
But cd is a shell internal. So you can only call it as
subprocess.call('cd ..', shell=True) # pointless code! See text below.
But it is pointless to do...
What is the 'new' keyword in JavaScript?
...on's external, accessible, prototype object (every function object automatically has a prototype property).
It makes the this variable point to the newly created object.
It executes the constructor function, using the newly created object whenever this is mentioned.
It returns the newly created obje...
Call to undefined method mysqli_stmt::get_result
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@Akintunde007: $EmailVerfied is created by the call to bind_result().
– AbraCadaver
Jan 24 '18 at 18:54
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throwing exceptions out of a destructor
...tors are by default `noexcept(true)` and
// this will (by default) call terminate if an exception is
// escapes the destructor.
//
// But this example is designed to show that terminate is called
// if two exceptions are propagating at the same time.
~...
JavaScript: Create and save file [duplicate]
...all browsers, but it has to work in Chrome. I want to do this all client-side.
13 Answers
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