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Reserved keywords in JavaScript
...vedKeyword(wordToCheck) {
var reservedWord = false;
if (/^[a-z]+$/.test(wordToCheck)) {
try {
eval('var ' + wordToCheck + ' = 1');
} catch (error) {
reservedWord = true;
}
}
return reservedWord;
}
...
Items in JSON object are out of order using “json.dumps”?
...e built in OrderedDicts, but I'm not sure (and I don't have easy access to test).
Old pythons simplejson implementations dont handle the OrderedDict objects nicely .. and convert them to regular dicts before outputting them.. but you can overcome this by doing the following:
class OrderedJsonEncod...
Placeholder in IE9
...
It works, but it's not the greatest code. At the top $(this) should be assigned to a variable which can be used throughout the code. Calling $ for every expression that uses $(this) is a no-no straight out of "Don't Write jQuery Like This 101".
...
CSS selector by inline style attribute
...e you an example of when this is useful. I'm writing a Selenium Web Driver test and canno't/would not like to alter the actual code in test. I need to identify a specific autocomplete (there are several hidden) by style display, as the code does not provide unique id's or parent structure - they are...
Difference between ActionBarSherlock and ActionBar Compatibility
...d this developer.android for more about ABC!
Note: Setting it up for unit tests the same way as ABS is unfortunately not possible with the support library.
Output:
Credits: Gabriele Mariotti
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ExpandableListView - hide indicator for groups with no children
...
Tested and don't works. This simple hide all indicators either has children or not.
– frusso
Feb 14 '15 at 21:11
...
What should I set JAVA_HOME environment variable on macOS X 10.6?
...for me is simply put in
$ export JAVA_HOME=$(/usr/libexec/java_home)
To test whether it works, put in
$ echo $JAVA_HOME
it shows
/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
you can also test
$ which java
...
Create objective-c class instance by name?
...ss objc_get_class( const char* name);
//Usage
Class cls = objc_get_class( "Test" );
id obj = class_create_instance( cls );
[ obj free ];
I haven't tested the 1.0 version, however I have used the 2.0 function in code that is now in production. I personally believe utilizing the 2.0 function is cle...
Is it a good idea to use Google Guava library for Android development?
...
I was curious about Guava & APK size. Simple testing revealed the following: "Hello world" & not much else (debug): 27KB; "Hello world" with Guava (15.0) dependency and minor Guava usage (debug): 705KB; the same, release build, optimised with ProGuard: 22KB. This te...
In mongoDb, how do you remove an array element by its index?
...his is how I do it.
exports.deletePregunta = function (req, res) {
let codTest = req.params.tCodigo;
let indexPregunta = req.body.pregunta; // the index that come from frontend
let inPregunta = `tPreguntas.0.pregunta.${indexPregunta}`; // my field in my db
let inOpciones = `tPreguntas.0.opciones.${...