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Can anyone explain IEnumerable and IEnumerator to me? [closed]
...erable. If you're building your own class, and it doesn't already inherit from a class that implements IEnumerable, you can make your class usable in foreach statements by implementing IEnumerable (and by creating an enumerator class that its new GetEnumerator method will return).
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Distributed sequence number generation?
...nerate the unique IDs on the clients themselves, using an approach derived from how UUIDs and Snowflake's IDs are made. There are multiple options, but something along the lines of:
The most significant 40 or so bits: A timestamp; the generation time of the ID. (We're using the most significant bi...
How do I pull from a Git repository through an HTTP proxy?
Note: while the use-case described is about using submodules within a project, the same applies to a normal git clone of a repository over HTTP.
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Does SVG support embedding of bitmap images?
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Yes, you can reference any image from the image element. And you can use data URIs to make the SVG self-contained. An example:
<svg xmlns="http://www.w3.org/2000/svg"
xmlns:xlink="http://www.w3.org/1999/xlink">
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<image
width...
why windows 7 task scheduler task fails with error 2147942667
... Scheduled Task
Switch to "Actions" tab
Open your Action
Remove Quotes (") from the field "Start in (optional)"
Save and close all open dialogs
To get the relevant error message:
1) Convert 2147942667 to hex: 8007010B
2) Take last 4 digits (010B) and convert to decimal: 267
3) Run: net helpms...
How can I explode and trim whitespace?
For example, I would like to create an array from the elements in this string:
11 Answers
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How to detect my browser version and operating system using JavaScript?
...-date, unless you use some sort of global database to get that information from; since this is entirely proprietary. Maybe some day, Google, W3 etc. will offer an API to crowdsource and make publicly available all the different system names and their relations that they gather from their users.
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.htaccess rewrite to redirect root URL to subdirectory
...ically, it redirects the root and only the root URL.
The answer originated from this link
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Differences between Proxy and Decorator Pattern
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Here is the direct quote from the GoF (page 216).
Although decorators can have similar implementations as proxies, decorators have a different purpose. A decorator adds one or more responsibilities to an object, whereas a proxy controls access to...
How to detect incoming calls, in an Android device?
..., Date start);
//Deals with actual events
//Incoming call- goes from IDLE to RINGING when it rings, to OFFHOOK when it's answered, to IDLE when its hung up
//Outgoing call- goes from IDLE to OFFHOOK when it dials out, to IDLE when hung up
public void onCallStateChanged(Context co...