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Difference between \w and \b regular expression meta characters

... Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity. ...
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is there a css hack for safari only NOT chrome?

... or a missing semicolon. With CSS it is usually that or a problem of which order the code is listed in the style sheets, if not just CSS errors. Please do test the hacks here on the test site. If it works there, that means the hack really is working for your setup, but it is something else that need...
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Find index of last occurrence of a sub-string using T-SQL

...ion, followed CHARINDEX, followed again by REVERSE to restore the original order. For instance: SELECT mf.name ,mf.physical_name ,reverse(left(reverse(physical_name), charindex('\', reverse(physical_name)) -1)) from sys.master_files mf shows how to extract the actual database file names f...
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How to hide element using Twitter Bootstrap and show it using jQuery?

...tag. This happens prior to removing the hide class. If you have it in that order, it shouldn't flicker. – Dustin Graham Sep 16 '19 at 16:37 add a comment  |...
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How does BLAS get such extreme performance?

...itten for one matrix already being transposed. That's why it's "only" one order of magnitude slower than BLAS! But yeah, it's still thrashing because of the lack of cache-blocking. Are you sure Fortran would help much? I think all you'd gain here is that restrict (no aliasing) is the default, un...
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vagrant up failed, /dev/vboxnetctl: no such file or directory

...tl: No such file or directory. These commands are not used in particular order. They are just generally useful and problem-solving. 1) sudo modprobe vboxdrv 2) sudo modprobe vboxnetadp - (host only interface) 3) sudo modprobe vboxnetflt - (make vboxnet0 accecible) IF YOU HAVE PROBLEMS WITH...
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What is the purpose of “android.intent.category.DEFAULT”?

...ATEGORY_DEFAULT so that they can be found by Context.startActivity(). In order to receive implicit intents, you must include the CATEGORY_DEFAULT category in the intent filter. The methods startActivity() and startActivityForResult() treat all intents as if they declared the CATEGORY_DEFAULT categ...
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Is there an equivalent of CSS max-width that works in HTML emails?

... of centered, just leave out the first empty cell. Example: <table border="0" cellspacing="0" width="100%"> <tr> <td></td> <td width="350">The width of this cell should be a maximum of 350 pixels, but shrink to widths less than...
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What is the purpose of flush() in Java streams?

...t to output(file,console) then you need to call flush() method manually in order to write partially filled buffer to output(file,console). share | improve this answer | foll...
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Are global variables in PHP considered bad practice? If so, why?

...se that global variable, and not only that, you have to figure out in what order those references to the global variable are accessed. If you have a global variable in a piece of code it makes it difficult to isolate the functionality of that code. Why would you want to isolate functionality? So yo...