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What does “opt” mean (as in the “opt” directory)? Is it an abbreviation? [closed]
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In the old days, "/opt" was used by UNIX vendors like AT&T, Sun, DEC and 3rd-party vendors to hold "Option" packages; i.e. packages that you might have paid extra money for. I don't recall seeing "/opt" on Berkeley BSD UNIX. They used "/usr/local" for stuff that you installed yourself.
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HttpUtility does not exist in the current context
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@AlexJolig: Make sure you have the reference and the namespace.
– SLaks
Jun 14 '15 at 12:51
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Bash set +x without it being printed
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I had the same problem, and I was able to find a solution that doesn't use a subshell:
set -x
command
{ set +x; } 2>/dev/null
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When to wrap quotes around a shell variable?
... a numeric value. Whether $URL needs it depends on what you allow in there and whether you still want an argument if it's empty.
I tend to always quote strings just out of habit since it's safer that way.
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select count(*) from table of mysql in php
I am able to get both the value and row of the mysql query result.
18 Answers
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How to present a simple alert message in java?
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@mre I guess this is either a joke or you're misunderstanding "verbosity"?
– Dónal
Feb 2 '12 at 20:34
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Why can't (or doesn't) the compiler optimize a predictable addition loop into a multiplication?
...th a condition like data[c] & 0x80 or so that can be true for positive and negative values?). I had compilers make invalid optimisations (for example, a couple of years ago, I had an ICC (11.0, iirc) use signed-32-bit-int-to-double conversion in 1.0/n where n was an unsigned int. Was about twice...
Create and append dynamically
...id='block'> you've created. You just need to create another <div> and call appendChild().
// Your existing code unmodified...
var iDiv = document.createElement('div');
iDiv.id = 'block';
iDiv.className = 'block';
document.getElementsByTagName('body')[0].appendChild(iDiv);
// Now create an...
What is 'Currying'?
I've seen references to curried functions in several articles and blogs but I can't find a good explanation (or at least one that makes sense!)
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Determine the type of an object?
...ry, or something else? I am getting an object back that may be either type and I need to be able to tell the difference.
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