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Advanced JavaScript: Why is this function wrapped in parentheses? [duplicate]
... itself:
delete x;
return x;
The delete operator will remove properties from objects. It doesn't delete variables. So;
var foo = {'bar':4, 'baz':5};
delete foo.bar;
console.log(foo);
Results in this being logged:
{'baz':5}
Whereas,
var foo = 4;
delete foo;
console.log(foo);
will log the ...
Visual Studio displaying errors even if projects build
... VS2015 - I even had 1 project that wouldn't build but I could tell from the errors that it should have. I didn't have to close VS. Just closed the solution, delete .suo, and reopen the solution. Problem solved.
– TTT
Jan 8 '16 at 16:16
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How to enable cURL in PHP / XAMPP
...ibeay32.dll
ssleay32.dll
If not there, you may copy these two files from the php folder.
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Creating a new dictionary in Python
...ython. However, all the examples that I see are instantiating a dictionary from a list, etc . ..
7 Answers
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How to sort an ArrayList?
...ld actually use Collections.sort(list, Collections.reverseOrder());. Apart from being more idiomatic (and possibly more efficient), using the reverse order comparator makes sure that the sort is stable (meaning that the order of elements will not be changed when they are equal according to the compa...
What is WebKit and how is it related to CSS?
...t
1) On February 12 2013 Opera (version 15+) announces they moving away from their own engine Presto to WebKit named Blink.
2) On April 3 2013 Google (Chrome version 28+) announces they are going to use the WebKit-based Blink engine.
3) On December 6 2018 Microsoft (Microsoft Edge 79+ stable) a...
How do I run multiple background commands in bash in a single line?
...r the shell executes the subsequent command. This is essentially different from ;, because ; lets the subsequent command execute regardless of the exit status of the previous command unless it was a fatal error. The & tells the shell to execute all of the "connected" commands preceding it, in th...
ld cannot find an existing library
...
Installing libgl1-mesa-dev from the Ubuntu repo resolved this problem for me.
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Is there a UIView resize event?
...bly saves
[super setBounds:newBounds];
if (isResize) [self recoverFromResizing];
}
Overriding setFrame: is NOT a good idea. frame is derived from center, bounds, and transform, so iOS will not necessarily call setFrame:.
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Rails 3 migrations: Adding reference column?
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See section 2.1 from edgeguides.rubyonrails.org/active_record_migrations.html for example.
– B Seven
Nov 19 '14 at 22:36
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