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Check if an array is empty or exists
... for the first time, I need to check if there is an image in image_array and load the last image.
22 Answers
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Maximum execution time in phpMyadmin
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You can use code formatting to make it clear what is code and what is not as well :)
– span
Dec 13 '12 at 11:07
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How do I limit the number of rows returned by an Oracle query after ordering?
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How can we get the LIMIT and OFFSET in Oracle 11G ?
– Pra_A
Jun 21 at 13:37
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Understanding Python's “is” operator
...e value.
From the documentation for the is operator:
The operators is and is not test for object identity: x is y is true if and only if x and y are the same object.
Use the == operator instead:
print(x == y)
This prints True. x and y are two separate lists:
x[0] = 4
print(y) # prints [1...
What exactly is an Assembly in C# or .NET?
...on a given machine. That compiled code will also be stored in the assembly and reused on subsequent calls.
The assembly can also contain resources like icons, bitmaps, string tables and so on. Furthermore, the assembly also contains metadata in the assembly manifest - information like version numbe...
How to duplicate object properties in another object?
...useful, I consider the idea of applying any rules to any situation harmful and unwise. Like all these pattern-driven development practices that are going on, so don't take it personal…
– Michael Krelin - hacker
Oct 3 '12 at 20:03
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Easiest way to detect Internet connection on iOS?
...wever, I don't feel the simple case is well explained here. Coming from an Android and BlackBerry background, making requests through HTTPUrlConnection instantly fail if there is no connection available. This seems like completely sane behavior, and I was surprised to find NSURLConnection in iOS...
Is there a way to navigate to real implementation of method behind an interface?
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I do the following:
1) Right click on the method and click "View call hierarchy" (or shortcut Ctrl+K, Ctrl+T)
2) Expand the "Implements x" folder which will then show you all the implementations of that method. Click on one to go there.
Relatively quick and easy. Annoyi...
Is there a way to 'pretty' print MongoDB shell output to a file?
...hidden features because it's an interactive environment.
When you run commands from a javascript file via mongo commands.js you won't get quite identical behavior.
There are two ways around this.
(1) fake out the shell and make it think you are in interactive mode
$ mongo dbname << EOF >...
JSTL in JSF2 Facelets… makes sense?
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Introduction
JSTL <c:xxx> tags are all taghandlers and they are executed during view build time, while JSF <h:xxx> tags are all UI components and they are executed during view render time.
Note that from JSF's own <f:xxx> and <ui:xxx> tags only tho...