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A connection was successfully established with the server, but then an error occurred during the pre
...for root cause analysis. Work-arounds have value, but it's more useful to know why this occurs and why the work-around works.
– laindir
Aug 8 '16 at 18:23
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How does !!~ (not not tilde/bang bang tilde) alter the result of a 'contains/included' Array method
...re performing a bitwise logical operation on an integer (which, for all I know, may be stored as two's complement or something like that...)
Two's complement explains how to represent a number in binary. I think I was right.
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Styling input buttons for iPad and iPhone
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The link above is now dead, unfortunately (thinkvitamin.com/design/…).
– Per Quested Aronsson
Sep 5 '12 at 11:00
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How do I copy a hash in Ruby?
I'll admit that I'm a bit of a ruby newbie (writing rake scripts, now). In most languages, copy constructors are easy to find. Half an hour of searching didn't find it in ruby. I want to create a copy of the hash so that I can modify it without affecting the original instance.
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Laravel Eloquent: How to get only certain columns from joined tables
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I know, you ask for Eloquent but you can do it with Fluent Query Builder
$data = DB::table('themes')
->join('users', 'users.id', '=', 'themes.user_id')
->get(array('themes.*', 'users.username'));
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Best way to build a Plugin system with Java
.... Took me about two weeks to find out how to do it correctly but once you know that it’s pretty simple. :)
– Bombe
Jan 23 '09 at 7:46
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How do I type using my keyboard on the iphone simulator?
...eyboard
Command-K Toggle (Show/Hide) Software Keyboard
And, you know, I really suffered for last 2 months, until found it, and it is very convenient now))
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How to split data into training/testing sets using sample function
...eed(101) # Set Seed so that same sample can be reproduced in future also
# Now Selecting 75% of data as sample from total 'n' rows of the data
sample <- sample.int(n = nrow(data), size = floor(.75*nrow(data)), replace = F)
train <- data[sample, ]
test <- data[-sample, ]
By using caTool...
Ruby on Rails: how do I sort with two columns using ActiveRecord?
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Thank you @Erik - I know this answer is old so here's my warning for those seeing it now: This method has been deprecated starting Rails 3.2. Use Thing.all instead =)
– Abdo
Mar 5 '13 at 9:18
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How to convert an ArrayList containing Integers to primitive int array?
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much easier now in Java8: integers.stream().mapToInt(Integer::valueOf).toArray
– Manish Patel
Oct 23 '15 at 21:18
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