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Can I have multiple Xcode versions installed?
Is it possible to have more than one version of Xcode installed at the same time?
12 Answers
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Deprecated: mysql_connect()
...ay
mysqli_query($connection, 'CREATE TEMPORARY TABLE `table`');
Turn off all deprecated warnings including them from mysql_*:
<?php
error_reporting(E_ALL ^ E_DEPRECATED);
The Exact file and line location which needs to be replaced is "/System/Startup.php > line: 2 " error_reporting(E_All)...
Extracting bits with a single multiplication
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A multiplication is a bunch of shift-and-add operations. The key is to allow overflow to "shift away" the bits we don't need and put the ones we want in the right place.
Multiplication by 4 (00000100) would shift everything left by 2 and get you to a00b0000 . To get the b to move up we need to...
git add, commit and push commands in one?
...ing multiple args, and also goes against the normal convention of a single string arg with spaces being wrapped in quotes. This is second nature to me at this point (and I would assume a lot of developers). Leaving out the quotes feels dirty.
– btse
Nov 5 '15 a...
Multiple constructors in python? [duplicate]
... Now you can do:
c = C(fd)
# or:
c = C.fromfilename('a filename')
Notice all those classmethods still go through the same __init__, but using classmethods can be much more convenient than having to remember what combinations of keyword arguments to __init__ work.
isinstance is best avoided becaus...
cannot convert data (type interface {}) to type string: need type assertion
... example, you were asserting data (type interface{}) has the concrete type string. If you are wrong, the program will panic at runtime. You do not need to worry about efficiency, checking just requires comparing two pointer values.
If you were unsure if it was a string or not, you could test using ...
When should I create a destructor?
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Awesome article Eric. Props for this --> "Extra bonus fun: the runtime uses less aggressive code generation and less aggressive garbage collection when running the program in the debugger, because it is a bad debugging experience to have objects that you are debuggin...
AngularJS : Initialize service with asynchronous data
...dependency2']);
// Use angular's version of document.ready() just to make extra-sure DOM is fully
// loaded before you bootstrap. This is probably optional, given that the async
// data call will probably take significantly longer than DOM load. YMMV.
// Has the added virtue of keeping your XHR j...
Multiprocessing vs Threading Python [duplicate]
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There is actually a good deal of difference: eli.thegreenplace.net/2012/01/16/…
– Andrew Sledge
May 29 '13 at 11:36
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Private properties in JavaScript ES6 classes
...class fields work. You can't currently use this in constructor before you call super(). Yet babel puts them before super.
– seeker_of_bacon
Oct 3 '18 at 16:23
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