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getActivity() returns null in Fragment function

... | edited May 23 '16 at 5:31 Milad Faridnia 7,4201111 gold badges6060 silver badges6767 bronze badges ...
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Python vs Cpython

... answered Jun 16 '13 at 7:02 Martijn Pieters♦Martijn Pieters 839k212212 gold badges32183218 silver badges28092809 bronze badges ...
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Which is faster : if (bool) or if(int)?

...s an 8-bit value, and your system ABI requires it to "promote" small (< 32-bit) integer arguments to 32-bit when pushing them onto the call stack. So to compare a bool, the compiler generates code to isolate the least significant byte of the 32-bit argument that g receives, and compares it with c...
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Detect changes in the DOM

...E don't support it. Note that the mutation events are deprecated in the DOM3 Events spec and have a performance penalty. You can try to emulate mutation event with onpropertychange in IE (and fall back to the brute-force approach if non of them is available). For a full domChange an interval could...
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How to use a decimal range() step value?

... 33 Answers 33 Active ...
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How do I find which rpm package supplies a file I'm looking for?

...m would install the mod_files.sh file with the php-devel x86_64 5.1.6-23.2.el5_3 package, but the file appears to not to be installed on my filesystem. ...
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Get the closest number out of an array

...| edited Jul 26 '17 at 9:23 Richard Parnaby-King 13.3k1010 gold badges6363 silver badges116116 bronze badges ...
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How to obtain a Thread id in Python?

... 234 threading.get_ident() works, or threading.current_thread().ident (or threading.currentThread()....
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How do I activate a virtualenv inside PyCharm's terminal?

... Edit: According to https://www.jetbrains.com/pycharm/whatsnew/#v2016-3-venv-in-terminal, PyCharm 2016.3 (released Nov 2016) has virutalenv support for terminals out of the box Auto virtualenv is supported for bash, zsh, fish, and Windows cmd. You can customize your shell preference in Se...
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Configure apache to listen on port other than 80

... 139 In /etc/apache2/ports.conf, change the port as Listen 8079 Then go to /etc/apache2/sites-en...