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How to wait for a number of threads to complete?
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You put all threads in an array, start them all, and then have a loop
for(i = 0; i < threads.length; i++)
threads[i].join();
Each join will block until the respective thread has completed. Threads may complete in a different order than you joining them, but that's n...
Updating address bar with new URL without hash or reloading the page
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Ah, the functionality is in WebKit and landed a few months ago <bugs.webkit.org/show_bug.cgi?id=36152>. Nice find!
– oldestlivingboy
Jul 27 '10 at 1:46
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How to pass macro definition from “make” command line arguments (-D) to C source code?
I usually pass macro definitions from "make command line" to a "makefile" using the option :
-Dname=value. The definition is accessible inside the makefile.
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IntelliJ: Never use wildcard imports
... obvious why you'd want to disable this: To force IntelliJ to include each and every import individually. It makes it easier for people to figure out exactly where classes you're using come from.
Click on the Settings "wrench" icon on the toolbar, open "Imports" under "Code Style", and check the "U...
The way to check a HDFS directory's size?
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Prior to 0.20.203, and officially deprecated in 2.6.0:
hadoop fs -dus [directory]
Since 0.20.203 (dead link) 1.0.4 and still compatible through 2.6.0:
hdfs dfs -du [-s] [-h] URI [URI …]
You can also run hadoop fs -help for more info and...
Getting time elapsed in Objective-C
...e time elapsed between two events, for example, the appearance of a UIView and the user's first reaction.
7 Answers
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Change auto increment starting number?
In MySQL, I have a table, and I want to set the auto_increment value to 5 instead of 1 . Is this possible and what query statement does this?
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Is $(document).ready necessary?
...odular code to use the document.ready event. Do you really want to go back and debug old code if you reuse it elsewhere?
off-topic:
As a side note: you should use jQuery(function($){...}); instead of $(document).ready(function(){...}); as it forces the alias to $.
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Sequence-zip function for c++11?
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Warning: boost::zip_iterator and boost::combine as of Boost 1.63.0 (2016 Dec 26) will cause undefined behavior if the length of the input containers are not the same (it may crash or iterate beyond the end).
Starting from Boost 1.56.0 (2014 Aug 7) you...
How to center buttons in Twitter Bootstrap 3?
... This is the one that worked for me. I tried the others above and it wouldn't center.
– mjwrazor
Oct 27 '16 at 13:41
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