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Why is Go so slow (compared to Java)?
...re designed to run fast themselves and produce code that's OK (there is a bit of optimisation). gccgo uses GCC's existing optimisation passes, and might provide a more pointful comparison with C, but gccgo isn't feature-complete yet.
Benchmark figures are almost entirely about quality of implementa...
Is there a “do … while” loop in Ruby?
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CAUTION:
The begin <code> end while <condition> is rejected by Ruby's author Matz. Instead he suggests using Kernel#loop, e.g.
loop do
# some code here
break if <condition>
end
Here's an email exchange in 23 Nov 2005 where Matz states:
|> Don't...
When is TCP option SO_LINGER (0) required?
...e option is used. The customer complains about RST as response to FIN from its side on connection close from its side.
7 An...
What is the difference between 'git pull' and 'git fetch'?
What are the differences between git pull and git fetch ?
36 Answers
36
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Downloading a Google font and setting up an offline site that uses it
I have a template and it has a reference to a Google font like this:
11 Answers
11
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How to change the opacity (alpha, transparency) of an element in a canvas element after it has been
...s> element, I would like to load an image file (PNG, JPEG, etc.), draw it to the canvas completely transparently, and then fade it in. I have figured out how to load the image and draw it to the canvas, but I don't know how to change its opacity once it as been drawn.
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What's the difference between git clone --mirror and git clone --bare
The git clone help page has this to say about --mirror :
7 Answers
7
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How to have conditional elements and keep DRY with Facebook React's JSX?
...JSX? Here is an example using a banner that should be in the component if it has been passed in. What I want to avoid is having to duplicate HTML tags in the if statement.
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Simple argparse example wanted: 1 argument, 3 results
...to grasp right now. I don't need to do math on the command line or meddle with formatting lines on the screen or change option characters. All I want to do is "If arg is A, do this, if B do that, if none of the above show help and quit" .
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When would anyone use a union? Is it a remnant from the C-only days?
...nly two guesses would be programming microprocessors when you have very limited space to work with, or when you're developing an API (or something similar) and you want to force the end user to have only one instance of several objects/types at one time. Are these two guesses even close to right?
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