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What's the difference between findAndModify and update in MongoDB?
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@MarkUnsworth open a support case with 10gen - if there is a bug in locking with findAndModify I can guarantee you engineers would want to fix it asap. If that was the case though we would see a lot of people report this behavior but findAndModify works as designe...
When should I use malloc in C and when don't I?
... string as read-only. You cannot make changes to it. Example:
some_memory[0] = 'h';
Is asking for trouble.
On the other hand
some_memory = (char *)malloc(size_to_allocate);
is allocating a char array ( a variable) and some_memory points to that allocated memory. Now this array is both read a...
How do I convert a org.w3c.dom.Document object to a String?
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edited Mar 26 '14 at 6:03
Ashish Aggarwal
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ans...
What does the brk() system call do?
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edited Aug 4 '19 at 10:48
Sandra Rossi
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answ...
What's the difference between “Request Payload” vs “Form Data” as seen in Chrome dev tools Network t
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answered Apr 18 '14 at 10:36
leflohlefloh
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How can I change property names when serializing with Json.net?
...artin Brown
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answered Jan 9 '12 at 23:26
Darin DimitrovDarin Dimitrov
9...
Rolling back a remote Git repository
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answered Feb 25 '09 at 23:51
elmarcoelmarco
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Can someone explain collection_select to me in clear, simple terms?
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306
collection_select(
:post, # field namespace
:author_id, # field name
# result of t...
error upon assigning Layout: BoxLayout can't be shared
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edited Apr 17 '09 at 17:46
answered Apr 17 '09 at 17:26
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When to use symbols instead of strings in Ruby?
...r this:
require 'benchmark'
require 'haml'
str = Benchmark.measure do
10_000.times do
Haml::Engine.new('%input{type: "checkbox"}').render
end
end.total
sym = Benchmark.measure do
10_000.times do
Haml::Engine.new('%input{type: :checkbox}').render
end
end.total
puts "String: " + st...