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What is the yield keyword used for in C#?
...
Yield has two great uses,
It helps to provide custom iteration without creating temp collections.
It helps to do stateful iteration.
In order to explain above two points more demonstratively, I have created a simple video you can watch it here
...
How can I make a clickable link in an NSAttributedString?
...olution: If you use NSURL instead of a NSString, you can use any URL (e.g. custom urls)
NSURL *URL = [NSURL URLWithString: @"whatsapp://app"];
NSMutableAttributedString * str = [[NSMutableAttributedString alloc] initWithString:@"start Whatsapp"];
[str addAttribute: NSLinkAttributeName value:URL ran...
How to display length of filtered ng-repeat data
... @Ben: I guess this is going off-topic. I'd consider creating a custom filter e.g. jsfiddle, however, you could also watch it inside the controller: $scope.$watch('filtered', function() { console.log('filtered:', $scope.filtered); });
– Wumms
Mar 18 ...
What is VanillaJS?
... systems like computer hardware or algorithms, are called vanilla when not customized from their original form, meaning that they are used without any customization or updates applied to them (Refer this article). So Vanilla often refers to pure or plain.
In the English language Vanilla has a simila...
AutoMapper: “Ignore the rest”?
...nExisting();
UPDATE: Apparently this does not work correctly if you have custom mappings because it overwrites them. I guess it could still work if call IgnoreAllNonExisting first and then the custom mappings later.
schdr has a solution (as an answer to this question) which uses Mapper.GetAllType...
Use HTML5 to resize an image before upload
... that I can then append to the form. When the blob is created, I trigger a custom event. Here is the function to create the blob:
/* Utility function to convert a canvas to a BLOB */
var dataURLToBlob = function(dataURL) {
var BASE64_MARKER = ';base64,';
if (dataURL.indexOf(BASE64_MARKER) =...
How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar
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Ridiculously good code. As jschmidt said, the custom "fetchedResultsControllerForTableView:" method really simplifies the entire process.
– Daniel Amitay
Jul 30 '11 at 1:08
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How do you create a transparent demo screen for an Android app?
...r TextView's.
The text in the screen shot is all TextView's with their own custom font.
In your Manifest add the following to your Activity:
android:theme="@style/Theme.Transparent">
In to your outer RelativeLayout add:
android:background="#aa000000"
To your styles.xml file:
<style name=...
Enum ToString with user friendly strings
... memberInfo.Length > 0)
{
object[] attrs = memberInfo[0].GetCustomAttributes(typeof(DescriptionAttribute), false);
if (attrs != null && attrs.Length > 0)
{
//Pull out the description value
return ((DescriptionAttribute)attrs[0]).Desc...
What do Clustered and Non clustered index actually mean?
...o some range of clustered index values.
For example, you have two tables, Customer and Order:
Customer
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ID
Name
Address
Order
----------
ID
CustomerID
Price
If you wish to quickly retrieve all orders of one particular customer, you may wish to create a clustered index on the "Customer...