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How do I choose between Semaphore and SemaphoreSlim?
...lim does not permit named semaphores, which can be system-wide. This would mean that a SemaphoreSlim could not be used for cross-process synchronization.
The MSDN documentation also indicates that SemSlim should be used when "wait times are expected to be very short". That would usually dovetail ni...
Should functions return null or an empty object?
...nothing makes no sense. Accessing members of an empty object will not fail meaning bugs can go undiscovered.
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edited Nov 26 '09 at 7:08
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Android: How to stretch an image to the screen width while maintaining aspect ratio?
...t, or in other words, the maximum width is equal to the image width.
This means that unless you set an exact size, images are NEVER enlarged. I consider this to be a bug, but good luck getting Google to take notice or fix it. Edit: Eating my own words, I submitted a bug report and they say it has b...
Android: How can I pass parameters to AsyncTask's onPreExecute()?
...r variable but in the AsyncTask and not the outer class if that's what you mean. This is what I did: private class MyAsyncTask extends AsyncTask<Void, Void, Void> { private boolean showLoading; public MyAsyncTask(boolean showLoading) { super(); this.showLoading = showL...
What is the difference between the Data Mapper, Table Data Gateway (Gateway), Data Access Object (DA
...n I use one, I expect to get back a Customer object), but different intent/meaning and resulting implementation.
A Repository "acts like a collection, except with more elaborate querying capability" [Evans, Domain Driven Design] and may be considered as an "objects in memory facade" (Repository dis...
Get cursor position (in characters) within a text Input field
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@Michael Scheper - You mean 'el' for element and 'val' for value? Those are pretty common...
– user2782001
Feb 5 '16 at 2:22
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Using an if statement to check if a div is empty
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if( $('#leftmenu:empty').length ) {
// ...
Keep in mind that empty means no white space either. If there's a chance that there will be white space, then you can use $.trim() and check for the length of the content.
if( !$.trim( $('#leftmenu').html() ).length ) {
// ...
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What's the better (cleaner) way to ignore output in PowerShell? [closed]
... because those may execute faster or take less keystrokes to type, doesn't mean they're the best way to do what you're trying to do, and just because a language gives you quirky syntax doesn't mean you should use it instead of something clearer and better-known.*
* I am presuming that Out-Null is c...
Understanding PrimeFaces process/update and JSF f:ajax execute/render attributes
... influence on the HTTP request payload (the amount of request parameters). Meaning, the default HTML behavior of sending "everything" contained within the HTML representation of the <h:form> will be not be affected. In case you have a large form, and want to reduce the HTTP request payload to ...
How do I force Postgres to use a particular index?
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Agreed, Forcing postgres to do it your way usually means you've done it wrong. 9/10 Times the planner will beat anything you can come up with. The other 1 time its because you made it wrong.
– Kent Fredric
Nov 21 '08 at 19:31
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