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Understanding reference counting with Cocoa and Objective-C
...n that object's memory is freed by the system.
The basic way this differs from malloc and free is that any given object doesn't need to worry about other parts of the system crashing because you've freed memory they were using. Assuming everyone is playing along and retaining/releasing according t...
Common MySQL fields and their appropriate data types
... name/last name fields should be at least 48 characters -- there are names from some countries such as Malaysia or India that are very long in their full form.
Phone numbers and postcodes you should always treat as text, not numbers. The normal reason given is that there are postcodes that begin wi...
Understanding the transclude option of directive definition?
...ing called transclusion. The concept is pretty simple: Include the content from one place into another. So now your directive will look something like this:
app.directive('myDirective', function(){
return{
transclude: true,
template: '<div class="something"> This is my dir...
AJAX in Chrome sending OPTIONS instead of GET/POST/PUT/DELETE?
... really care to argue with you, but JSONP uses script tags to pull in data from another domain and then sends the result to a callback function. It's a lot harder if the result isn't json.
– jgitter
Feb 14 '14 at 15:40
...
Will using 'var' affect performance?
...n IList<int>, that is how the compiler will build the bar3 variable.
From a performance standpoint, mostly you won't notice. However, there are situations where the performance of the third line may not be quite as fast as the performance of the first. As you continue to use the bar3 variable,...
How can I put a database under git (version control)?
...is way using diff it becomes fairly easy to see what changed in the schema from revision to revision.
If you are making big changes, you should have a secondary database that you make the new schema changes to and not touch the old one since as you said you are making a branch.
...
Send a file via HTTP POST with C#
...
Using .NET 4.5 (or .NET 4.0 by adding the Microsoft.Net.Http package from NuGet) there is an easier way to simulate form requests. Here is an example:
private async Task<System.IO.Stream> Upload(string actionUrl, string paramString, Stream paramFileStream, byte [] paramFileBytes)
{
...
pdftk compression option
... best out of all mentioned solutions for me. A few large images went down from 23MB to 1.4MB with by far the least quality loss.
– AerandiR
Feb 26 '13 at 5:19
1
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WCF service startup error “This collection already contains an address with scheme http”
...ally found one which details how to do it in .net 3.0 and .net 3.5.
Taken from the site, below is an example of how to alter your applications web config:
<system.serviceModel>
<serviceHostingEnvironment>
<baseAddressPrefixFilters>
<add prefix="net.tcp:...
Is there any pythonic way to combine two dicts (adding values for keys that appear in both)?
...
Use collections.Counter:
>>> from collections import Counter
>>> A = Counter({'a':1, 'b':2, 'c':3})
>>> B = Counter({'b':3, 'c':4, 'd':5})
>>> A + B
Counter({'c': 7, 'b': 5, 'd': 5, 'a': 1})
Counters are basically a subclass ...