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Extract first item of each sublist

...t2[0] lst2 = [['a', 1, 'x']] lst2[0] = ['a', 1, 'x'] Please let me know if I am incorrect. share | improve this answer | follow | ...
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What is the difference between :first-child and :first-of-type?

...g at have all been divs, but bear with me, I'll get to that in a bit. For now, the converse also holds true: any :first-child is also :first-of-type by necessity. Since the first child here is also the first div, it will match both pseudo-classes, as well as the type selector div: <div class="p...
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What are the barriers to understanding pointers and what can be done to overcome them? [closed]

...implified. There's more overhead and a lot more details you would need to know if you need to deal with memory on a low-level basis. However, for the intents of explaining memory and pointers, it is accurate enough. Let's assume the THouse class used below looks like this: type THouse = clas...
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How do I scale a stubborn SVG embedded with the tag?

...tributes of the SVG tag and it seemed to work. Save the SVG and it should now scale as expected. I found this information here: https://blueprints.launchpad.net/inkscape/+spec/allow-browser-resizing share | ...
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How to read the content of a file to a string in C?

...( &buffer, &len, '\0', fp); if ( bytes_read != -1) { /* Success, now the entire file is in the buffer */ share | improve this answer | follow | ...
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Bash: infinite sleep (infinite blocking)

...initrc . In my .xinitrc I start my window manager using /usr/bin/mywm . Now, if I kill my WM (in order to f.e. test some other WM), X will terminate too because the .xinitrc script reached EOF. So I added this at the end of my .xinitrc : ...
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Interfaces with static fields in java for sharing 'constants'

... syntactic sugar, and inherit from such interface is an horrible error. I know Sun did this, but they also made tons of other basic errors, that's not an excuse to mimic them. – gizmo Nov 26 '08 at 13:17 ...
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twitter bootstrap typeahead ajax example

...ed' ? false : process(json.options); } }); } }); Now you can make a unified code, placing "json-request" links in your HTML-code. share | improve this answer | ...
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git selective revert local changes from a file

...: git add -i (select the hunks you want to keep) git commit -m "tmp" Now you have a commit with only the changes you want to keep, and the rest is unstaged. git reset --hard HEAD At this point, uncommitted changes have been discarded, so you have a clean working directory, with the changes ...
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RRSet of type CNAME with DNS name foo.com. is not permitted at apex in zone bar.com

... IN A The RFC makes perfect sense as the nameserver wouldn't know whether it needs to follow the CNAME or answer with the actual record the CNAME overlaps with. bar.com is a zone therefore it implicitly has an SOA record for the bar.com name. You can't have both a SOA record and a CNAME...