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Struct inheritance in C++
...s, struct is exactly like class except the default accessibility is public for struct (while it's private for class).
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MySQL - why not index every field?
Recently I've learned the wonder of indexes, and performance has improved dramatically. However, with all I've learned, I can't seem to find the answer to this question.
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Are GUID collisions possible?
I'm working on a database in SQL Server 2000 that uses a GUID for each user that uses the app it's tied to. Somehow, two users ended up with the same GUID. I know that microsoft uses an algorithm to generate a random GUID that has an extremely low chance of causing collisons, but is a collision stil...
Sublime Text 2 - Link with Editor / Show file in sidebar
I'm looking for a feature like Eclipse's Link with Editor. Basically, I want whatever file I'm editing to be shown in its place in the file tree.
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Testing javascript with Mocha - how can I use console.log to debug a test?
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Yep, that was my issue, thanks for suggesting this. I moved the console logs to BEFORE the failing .expect, and they show now.
– redfox05
Aug 29 '16 at 17:48
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Difference between “on-heap” and “off-heap”
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+1 for mentioning direct ByteBuffers for further exploration ;)
– Max
Mar 7 '13 at 9:58
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PHP code to remove everything but numbers
...oting doesn't have anything to do with PCRE tho. Apparently (in the days before (?flags)) the people who designed/wrote the function/API thought it was a good idea to pass the regex flags with the double quoted /flags form instead of using an extra function parameter.
– Qtax
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What is the difference between Int and Integer?
...mplementation-dependent but guaranteed to hold at least [-229 .. 229-1].
For example:
Prelude> (minBound, maxBound) :: (Int, Int)
(-9223372036854775808,9223372036854775807)
However, Integer is arbitrary precision, and not Bounded.
Prelude> (minBound, maxBound) :: (Integer, Integer)
<...
Deprecated warning for Rails 4 has_many with order
...tion. Another point to note is that this scope block needs to be passed before any other association options such as dependent: :destroy etc.
Give this a try:
has_many :contents, -> { order(:position) }
To specify order direction, i.e. either asc or desc as @joshua-coady and @wsprujit hav...
Remove first 4 characters of a string with PHP
...exactly an explanation as such, but a nice demonstration of using substr() for various bits of string manipulation.
– Byson
Dec 3 '14 at 14:56
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