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Is there still any reason to learn AWK?
...is a wonderful example of friendly technical writing done right. Even the index is a piece of craftsmanship.
Awk? If you know it, you'll use it at the command-line occasionally, but for anything larger you'll feel trapped, unable to access the wider features of your system and the Internet that s...
In which scenario do I use a particular STL container?
...entially access an element." - I think you mean you can't random-access or index directly to an element....
– Tony Delroy
Jul 8 '12 at 4:12
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Dynamically adding a form to a Django formset with Ajax
I want to automatically add new forms to a Django formset using Ajax, so that when the user clicks an "add" button it runs JavaScript that adds a new form (which is part of the formset) to the page.
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Git: Create a branch from unstaged/uncommitted changes on master
... checkout “Updates files in the working tree to match the version in the index or the specified tree.”. That assumes your changes in your file system will be GONE afterwards. Without any chance to get them back. Even if you say they won’t, this still leaves a very bad feeling. I don’t trust ...
Python idiom to return first item or None
...it like:
next((x for x in blah if cond), None)
Pro: works if blah isn't indexable Con: it's unfamiliar syntax. It's useful while hacking around and filtering stuff in ipython though.
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How to determine whether a given Linux is 32 bit or 64 bit?
...wk '{print $2}'
Note: you can have a 64-bit CPU with a 32-bit kernel installed.
(as ysdx mentions in his/her own answer, "Nowadays, a system can be multiarch so it does not make sense anyway. You might want to find the default target of the compiler")
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Multiple submit buttons on HTML form – designate one button as default [duplicate]
... The primary problem with this solution is that it breaks tab index. Repositioning of buttons with CSS does not change their tabindex order. So pressing tab will not consistently go from top / bottom, left to right. See stackoverflow.com/a/31911751/442472 for a solution that addresses t...
Find object in list that has attribute equal to some value (that meets any condition)
...eat solution, but how do i modify your line so that I can make x.value actually mean x.fieldMemberName where that name is stored in value? field = "name" next((x for x in test_list if x.field == value), None) so that in this case, i am actually checking against x.name, not x.field
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Capturing URL parameters in request.GET
...ll find the request method (in this case "GET", and for submitted forms usually "POST") in request.method. In some cases it's useful to check that it matches what you're expecting.
Update: When deciding whether to use the URL path or the query parameters for passing information, the following may h...
Camera orientation issue in Android
... This doesn't seem to work on some devices, it returns 0 for all orientations.. I know it happens on Galaxy S Infuse and Sony Xperia Arc, and S II.. Interesting thing here is that when these same images are selected from gallery, the content provider has the proper orientation value.. ...