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what is faster: in_array or isset? [closed]
...need to iterate. Internally (in C) the PHP array is just a hash table. In order to lookup up a single index value, C just makes a hash of that value and looks up its assigned location in memory. There is either a value there or there isn't.
– Mike Brant
Nov 2...
biggest integer that can be stored in a double
... (since the one check in the while loop decrements dbl). And it depends on order of execution, if the decrement is done before or after evaluating the left side (which is undefined as far as I know). If it's the former, it'll always be true and loop forever.
– falstro
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Is there a way to loop through a table variable in TSQL without using a cursor?
...er
select top 1 @CustId=USERID from UserIDs where USERID < @CustID order by USERID desc--get the next one
set @RowNum = @RowNum - 1 --decrease count
END
No Cursors, no temporary tables, no extra columns.
The USERID column must be a unique integer, as most ...
Error handling in getJSON calls
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what is the chronological order of done, fail, always and the code inside getJSON?
– TheLogicGuy
Aug 5 '16 at 19:58
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Camera access through browser
...rding a video or audio;
<input type="file" accept="video/*;capture=camcorder">
<input type="file" accept="audio/*;capture=microphone">
or (new method)
<device type="media" onchange="update(this.data)"></device>
<video autoplay></video>
<script>
functio...
How to create NSIndexPath for TableView
I need delete row 1 of a table in a function I have defined. In order to use deleteRowAtIndexPath you must use an IndexPath with a section and row defined. How can I create an indexpath like this?
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Controlling a USB power supply (on/off) with Linux
...k to defaults? I have a device that I need to set power control to "on" in order for it to charge.
– quickblueblur
Jan 30 '19 at 19:19
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C++11 features in Visual Studio 2012
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Atomics
Strong compare and exchange
Bi-directional fences
Data-dependency ordering
Range-based for loop
In early November 2012, Microsoft announced the Visual C++ Compiler November 2012 CTP, which adds more C++11 functionality to Visual Studio 2012:
uniform initialization
initializer lists
var...
CFBundleVersion in the Info.plist Upload Error
... changing build number solved the problem. set versions to 1.0.2 ... 2.0.2 etc. then increase build # (Adam 3 point give me an idia where to look).
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jQuery Determine if a matched class has a given id
...ach element that matches the selector, counting from 0, depending on their order in the DOM. As long as you know how many elements there are with class="foo" you don't need an id.
Obviously this won't always help, but someone might find it useful.
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