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What does the Reflect object do in JavaScript?

...t.html#sec-reflect-object and it sounds similar to the Proxy object apart from the realm and loader functionality. 2 Answ...
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Getting the last element of a list

...f range" - and that's what should happen when attempting to get an element from an empty list. For Strings astr[-1:] could be a valid approach since it returns the same type as astr[-1], but I don't think the ':' helps to deal with empty lists (and the question is about lists). If the idea is to use...
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Django template tag to truncate text

...at add "..." to the end of (last word of) the (truncated) string as well: from django import template register = template.Library() @register.filter("truncate_chars") def truncate_chars(value, max_length): if len(value) > max_length: truncd_val = value[:max_length] if not le...
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Benefits of inline functions in C++?

...vial functions). As such, it could provoke paging and defeat optimizations from the compiler. It slightly breaks your encapsulation because it exposes the internal of your object processing (but then, every "private" member would, too). This means you must not use inlining in a PImpl pattern. It sli...
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Reset the database (purge all), then seed a database

...verything and recreate database + seeds with both: rake db:reset: loads from schema.rb rake db:drop db:create db:migrate db:seed: loads from migrations Make sure you have no connections to db (rails server, sql client..) or the db won't drop. schema.rb is a snapshot of the current state of you...
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Remove all the children DOM elements in div

...M nodes (SVG, VML) or not (Silverlight, Flash, Canvas). Removing DOM nodes from DOM does not remove those JavaScript objects, and it does not remove DOM nodes either because JavaScript objects still have references to those DOM nodes. The correct way to handle this situation is described in my answe...
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How do I make a Mac Terminal pop-up/alert? Applescript?

... Use this command to trigger the notification center notification from the terminal. osascript -e 'display notification "Lorem ipsum dolor sit amet" with title "Title"' share | improve th...
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Fragment onResume() & onPause() is not called on backstack

... if you to a different child in my FragmentStatePagerAdapter (say you move from child 0 to child 2, note to self, this happens because child 0 is destroyed when child 2 opens) – Sufian Aug 28 '15 at 14:17 ...
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Difference between CC, gcc and g++?

...he answer to this is platform-specific; what happens on Linux is different from what happens on Solaris, for example. The easy part (because it is not platform-specific) is the separation of 'gcc' and 'g++': gcc is the GNU C Compiler from the GCC (GNU Compiler Collection). g++ is the GNU C++ Comp...
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unix diff side-to-side results?

... From man diff, you can use -y to do side-by-side. -y, --side-by-side output in two columns Hence, say: diff -y /tmp/test1 /tmp/test2 Test $ cat a $ cat b hello hello my name ...