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Compile time string hashing
...absolutely. I tested it against the Python CRC32 runtime algorithm (coming from zlib) and the results are the same. In fact, what you're trying to achieve is exactly why I use this technique for!
– Clement JACOB
Aug 23 '13 at 7:07
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What's the difference between array_merge and array + array?
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The + sign only takes the value from the first occurence of an array key.
array_merge takes the value from the last occurrence of an array key.
Example:
$first = ['a'=>'one',
'b'=>'two',
'c'=>'three'];
$second = ['a'=>'fourth'...
How efficient is locking an unlocked mutex? What is the cost of a mutex?
... it causes to much of the inter-CPU/core traffic to flush the mutex memory from the data cache of other CPUs to guarantee the cache coherency. The cache flushes are like light-weight interrupts and handled by CPUs transparently - but they do introduce so called stalls (search for "stall").
And the ...
Real world use of JMS/message queues? [closed]
...a good example here because you can use the STOMP protocol to allow access from a C#/Java/Ruby client.
A real world example is that of a web application that is used to place an order for a particular customer. As part of placing that order (and storing it in a database) you may wish to carry a nu...
How can I use a file in a command and redirect output to the same file without truncating it?
Basically I want to take as input text from a file, remove a line from that file, and send the output back to the same file. Something along these lines if that makes it any clearer.
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Get absolute path of initially run script
... absolute path of the executed script in PHP? For me, the script will run from the command line, but, a solution should function just as well if run within Apache etc.
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Limiting number of displayed results when using ngRepeat
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@defmx per the OP's question, query comes from Search: <input ng-model="query">
– jusopi
Mar 12 '16 at 3:28
add a comment
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Change working directory in my current shell context when running Node script
...trying to change the working directory of my Node.js script when it is run from a bin script. I have something like the following:
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What data is stored in Ephemeral Storage of Amazon EC2 instance?
...tuff on it, then I believe everything will be lost.
You can create an AMI from your current machine state, which will contain everything in your ephemeral storage. Then, when you launch a new instance based on that AMI it will contain everything as it is now.
Update: to clarify based on comments ...
NOW() function in PHP
...l got ~800 upvotes more. Your answer submission was probably seconds apart from his. :) Thank You for writing it anyways :D
– Aleksandar
May 29 '19 at 8:50
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