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What does @synchronized() do as a singleton method in objective C?
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Excellent answer here:
Help understanding class method returning singleton
with further explanation of the process of creating a singleton.
share
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How to Diff between local uncommitted changes and origin
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Ah, excellent. The key was to leave the master out. I had tried a combination where I was doing a fetch before, but when I did git diff master origin/master it was still comparing against the committed version (obvious in retrosp...
Create Django model or update if exists
...looking for "update if exists else create" use case, please refer to @Zags excellent answer
Django already has a get_or_create, https://docs.djangoproject.com/en/dev/ref/models/querysets/#get-or-create
For you it could be :
id = 'some identifier'
person, created = Person.objects.get_or_create(i...
Check if pull needed in Git
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Excellent. As far as I can tell, this is the only solution that actually checks the origin for updates but doesn't implicitly do a fetch.
– Kyle Strand
Apr 17 '14 at 20:53
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Bootstrap 3 modal vertical position center
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excellent answer and post! However, can this also be animated? It works great when it just pops in, but what about animated? I am at work and can't test it atm, but I am eager to see the results
– scoote...
ListView inside ScrollView is not scrolling on Android
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I found a solution that works excellently and can scroll the ListView without problems:
ListView lv = (ListView)findViewById(R.id.myListView); // your listview inside scrollview
lv.setOnTouchListener(new ListView.OnTouchListener() {
@Override
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Apache Spark: The number of cores vs. the number of executors
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From the excellent resources available at RStudio's Sparklyr package page:
SPARK DEFINITIONS:
It may be useful to provide some simple definitions
for the Spark nomenclature:
Node: A server
Worker Node: A server that is part of the cl...
Custom events in jQuery?
...re and here. Why exactly this can be useful? I found how to use it in this excellent explanation from twitter engineer.
P.S. In plain javascript you can do this with new CustomEvent, but beware of IE and Safari problems.
sh...
iOS Image Orientation has Strange Behavior
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Quick copy/paste Swift translation of Dilip's excellent answer.
import Darwin
class func rotateCameraImageToProperOrientation(imageSource : UIImage, maxResolution : CGFloat) -> UIImage {
let imgRef = imageSource.CGImage;
let width = CGFloat(CGImageGetWidth...
Button Click event fires when pressing Enter key in different input (no forms)
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Excellent fix. I thought browsers would only auto-submit on "Enter" when inside <form> tags. But I see I was wrong.
– Clayton Bell
Jul 3 '13 at 16:38
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