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What is the difference between a .xib file and a .storyboard?
... with storyboards, there's an introduction to storyboards in the WWDC 2011 videos here. The 2011 Stanford iOS course on iTunes-U is also iOS 5-specific and covers storyboards and more.
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impro...
How do I toggle an ng-show in AngularJS based on a boolean?
... Nested States & Nested Views in the Angular-UI documentation, watch a video, or read understanding scopes.
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Drawing an image from a data URL to a canvas
...5 Canvas Context lets you copy all or a portion of an image (or canvas, or video) onto a canvas.
You might use it like so:
var myCanvas = document.getElementById('my_canvas_id');
var ctx = myCanvas.getContext('2d');
var img = new Image;
img.onload = function(){
ctx.drawImage(img,0,0); // Or at w...
Virtual functions and performance - C++
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In very performance critical applications (like video games) a virtual function call can be too slow. With modern hardware, the biggest performance concern is the cache miss. If data isn't in the cache, it may be hundreds of cycles before it's available.
A normal functi...
Django ModelForm: What is save(commit=False) used for?
....m4v','.mpg','.mpeg','.wmv')):
attachment.file_type = "video"
if attachment.filename.lower().endswith(('.aif','.cda','.mid','.midi','.mp3','.mpa','.ogg','.wav','.wma','.wpl')):
attachment.file_type = "audio"
if attachment.filena...
Explanation of JSONB introduced by PostgreSQL
...b: no duplicate keys, last key win
jsonb: keys are sorted
More in speech video and slide show presentation by jsonb developers. Also they introduced JsQuery, pg.extension provides powerful jsonb query language
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ElasticSearch, Sphinx, Lucene, Solr, Xapian. Which fits for which usage? [closed]
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Also, the video was really well done. You should add some more of those!
– Shabbyrobe
Dec 10 '10 at 10:12
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Count(*) vs Count(1) - SQL Server
...e search in a bit more detail if you want to learn about that. Here's the video link: https://sqlbits.com/Sessions/Event6/inside_the_sql_server_query_optimizer
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What is the difference between Step Into and Step Over in the Eclipse debugger?
...debugging features, but these are the basic fundamentals.
See also
Free video tutorial: Eclipse and Java: Using the Debugger
IBM/DeveloperWorks/Debugging with the Eclipse Platform
IBM/DeveloperWorks/Learn the essentials of debugging
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ASP.Net: Literal vs Label
...first as its lightweight and does not emit out extra SPAN tags.
See this video which demonstrates about those extra tags.
But we can not apply CSS on a literal , we can not add attributes like Label1.Attributes.Add to a literal. Any container oriented things can not be achieved as literal is not ...