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How to kill zombie process
... If the zombie is a dead process (already killed), how I remove it from the output of ps aux?
– MOHAMED
Jun 5 '13 at 16:19
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Rails :dependent => :destroy VS :dependent => :delete_all
...te_all is made directly in your application and deletes by SQL :
DELETE * FROM users where compagny_id = XXXX
With the :destroy, there is an instantiation of all of your children. So, if you can't destroy it or if each has their own :dependent, its callbacks can be called.
...
Analyze audio using Fast Fourier Transform
...wer level for all frequencies. The rest of your coefficients will count up from 0 in multiples of 172 Hz until you get to 128. In an FFT, you only can measure frequencies up to half your sample points. Read these links on the Nyquist Frequency and Nyquist-Shannon Sampling Theorem if you are a glutto...
How do I create an empty array/matrix in NumPy?
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A NumPy array is a very different data structure from a list and is designed to be used in different ways. Your use of hstack is potentially very inefficient... every time you call it, all the data in the existing array is copied into a new one. (The append function will h...
What is the purpose of XORing a register with itself? [duplicate]
...he big picture it's faster. There are fewer bytes that have to be fetched from RAM.
– Loren Pechtel
Dec 7 '09 at 0:21
12
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'any' vs 'Object'
...ember
c.doSomething(); // Error: c neither has doSomething nor inherits it from Object
and why
a.toString(); // Ok: whatever, dude, have it your way
b.toString(); // Ok: toString is defined in Object
c.toString(); // Ok: c inherits toString from Object
So Object and {} are equivalents in TypeSc...
How is the java memory pool divided?
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Heap memory
The heap memory is the runtime data area from which the Java VM allocates memory for all class instances and arrays. The heap may be of a fixed or variable size. The garbage collector is an automatic memory management system that reclaims heap memory for objects.
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How do I get the AM/PM value from a DateTime?
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This for get AM/PM from date. But if I want to change AM to PM in any date. Then what should I do ?
– Ajay Sharma
Apr 14 '16 at 6:11
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What is the canonical way to determine commandline vs. http execution of a PHP script?
... cli-mode
} else {
// Not in cli-mode
}
Here are some relevant notes from the docs:
php_sapi_name — Returns the type of interface between web server and PHP
Although not exhaustive, the possible return values include aolserver, apache, apache2filter, apache2handler, caudium, cgi (un...
An existing connection was forcibly closed by the remote host
...le values together to support multiple protocols. So to support everything from SSL3 to TLS1.2, set SecurityProtocol = (SecurityProtocolType)4080.
– Abacus
Jan 29 '19 at 19:08
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