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Check if a variable is a string in JavaScript

...ing both typeof and instanceof feels like good advice if your code may be called by others'. @MarkAmery's postmessage edge case matters if you're asking "what was I just postmessaged?" - but you'd expect that to be handled at the interface and not allowed to propagate. Elsewhere, it seems correct t...
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Failed to allocate memory: 8

...e, with 6GB sitting free while the Android emulator tells me that it can't allocate 1GB? – Strozykowski Nov 11 '11 at 1:38 5 ...
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HashMap and int as key

... You can't use a primitive because HashMap use object internally for the key. So you can only use an object that inherits from Object (that is any object). That is the function put() in HashMap and as you can see it uses Object for K: public V put(K key, V value) { if (key == nu...
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Drop columns whose name contains a specific string from pandas DataFrame

... I really wonder what the comments saying this answer is "elegant" means. I myself find it quite obfuscated, when python code should first be readable. It also is twice as slower than the first answer. And it uses the regex keywor...
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“is” operator behaves unexpectedly with integers

...3): The current implementation keeps an array of integer objects for all integers between -5 and 256, when you create an int in that range you actually just get back a reference to the existing object. So it should be possible to change the value of 1. I suspect the behaviour of Py...
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Timeout a command in bash without unnecessary delay

...y, Bash does not support floating point arithmetic (sleep does), therefore all delay/time values must be integers. EOF } # Options. while getopts ":t:i:d:" option; do case "$option" in t) timeout=$OPTARG ;; i) interval=$OPTARG ;; d) delay=$OPTARG ;; *) printUsage...
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How do you force a CIFS connection to unmount

.... Detach the filesystem from the filesystem hierarchy now, and cleanup all references to the filesystem as soon as it is not busy anymore. (Requires kernel 2.4.11 or later.) share | impr...
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How do I see a C/C++ source file after preprocessing in Visual Studio?

...y get link a error saying some obj files cannot be found because it is actually not generated at all. – smwikipedia Aug 9 '16 at 2:16 ...
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IntelliJ IDEA way of editing multiple lines

... Thanks for the link. I accidentally hit upon this feature but somehow I couldn't figure out which key combination I accidentally pressed :) – aberrant80 May 9 '14 at 6:14 ...
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How to make URL/Phone-clickable UILabel?

...TextView.editable = NO; yourTextView.dataDetectorTypes = UIDataDetectorTypeAll; Swift: yourTextView.editable = false; yourTextView.dataDetectorTypes = UIDataDetectorTypes.All; This will detect links automatically. See the documentation for details. ...