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微博为什么限制140字(附短信70字限制考) - 创意 - 清泛网 - 专注C/C++及内核技术
...d sweet! It also just so happens that 140 characters is the perfect length for sending status updates via text message. The standard text message length in most places is 160 characters per message. We reserve 20 characters for people’s names, and the other 140 are all yours! (via Twitter FAQ)...
How to show the loading indicator in the top status bar
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It's in UIApplication:
For Objective C:
Start:
[UIApplication sharedApplication].networkActivityIndicatorVisible = YES;
End:
[UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
For swift :
Start
UIApplication.shared.isN...
How do I load a PHP file into a variable?
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implementing a php parser just for that seems like a huge overkill
– David Fariña
Aug 29 '13 at 11:44
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How to force composer to reinstall a library?
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You can use the --prefer-source flag for composer to checkout external packages with the VCS information (if any available). You can simply revert to the original state. Also if you issue the composer update command composer will detect any changes you made loca...
How do you check “if not null” with Eloquent?
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Eloquent has a method for that (Laravel 4.*/5.*);
Model::whereNotNull('sent_at')
Laravel 3:
Model::where_not_null('sent_at')
share
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improve...
Running V8 Javascript Engine Standalone
...m Mozilla's standalone Javascript interpreter. Luckily, V8 ships with code for building a console. Here is how to build this:
$> svn co http://v8.googlecode.com/svn/trunk v8-trunk
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$> cd v8-trunk
$> scons
$> g++ ./samples/shell.cc -o v8-shell -I include libv8.a
Now, we have a sta...
Scroll to the top of the page using JavaScript?
...esirable even if the scrollbar instantly jumps to the top. I'm not looking for a smooth scrolling.
42 Answers
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Entity Framework Refresh context?
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In EF Core you can use Query().Load() so for example context.Entry(order).Collection(o => o.NavigationProperty).Query().Load();
– Rubenisme
Feb 6 at 17:18
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Eclipse git checkout (aka, revert)
...at least you can deselect files in the commit dialog... Btw: I filed a bug for the reset bugs.eclipse.org/bugs/show_bug.cgi?id=295423
– simon
Nov 18 '09 at 10:16
5
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jquery - fastest way to remove all rows from a very large table
... @morgancodes wants to remove the contents, aka the rows, not the headers. For those who finds this later the solution would be $('#mytable tbody').empty();. This ensures that only the tbody gets emptied.
– OmniOwl
Jan 13 at 5:22
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