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Is object empty? [duplicate]
....isEmptyObject:
if ($.isEmptyObject(obj))
{
// do something
}
More: http://api.jquery.com/jQuery.isEmptyObject/
You need jquery though.
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What does the “===” operator do in Ruby? [duplicate]
...h"
when /test/
"Test"
else
"Fail"
end
=> "Test"
Stephen, checkout http://ruby-doc.org/docs/ProgrammingRuby/ (the "Pickaxe"), it should be able to help you out with questions such as this in the future.
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Does SQLAlchemy have an equivalent of Django's get_or_create?
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Qt 5.1.1: Application failed to start because platform plugin “windows” is missing
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Okay, as posted here https://stackoverflow.com/a/17271172/1458552 without much attention by other users:
The libEGL.dll was missing! Even though this has not been reported when trying to start the application (all other *.dlls such as Qt5Gui.dl...
How to unit test a Node.js module that requires other modules and how to mock the global require fun
...It doesn't support Webpack. I'm looking into inject-loader instead (github.com/plasticine/inject-loader).
– Artif3x
Jun 16 '17 at 20:23
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How to initialize a vector in C++ [duplicate]
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With the new C++ standard (may need special flags to be enabled on your compiler) you can simply do:
std::vector<int> v { 34,23 };
// or
// std::vector<int> v = { 34,23 };
Or even:
std::vector<int> v(2);
v = { 34,23 };
On compilers that don't support this feature (initiali...
A JRE or JDK must be available in order to run Eclipse. No JVM was found after searching the followi
...ing in JDK's JRE installation. After I reinstalled the standalone JRE from http://java.com, overwriting the old one, the GlassFish installer continued and also Eclipse was able to start flawlessly without those two lines in eclipse.ini.
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Usage of protocols as array types and function parameters in swift
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I found a not pure-pure Swift solution on that blog post:
http://blog.inferis.org/blog/2015/05/27/swift-an-array-of-protocols/
The trick is to conform to NSObjectProtocol as it introduces isEqual().
Therefore instead of using the Equatable protocol and its default usage of == you c...
JavaScript function order: why does it matter?
...dit: For an overview which also covers some ES6 declarations (let, const): https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Scope_Cheatsheet
This weird behavior depends on
How you define the functions and
When you call them.
Here's some examples.
bar(); //This won't throw an...
Set initial focus in an Android application
...e Somewhere, I tried all of the above to no avail. The fix I found is from http://www.helloandroid.com/tutorials/remove-autofocus-edittext-android . Basically, you need to create an invisible layout just above the problematic Button:
<LinearLayout android:focusable="true"
android:f...