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How do cache lines work?
...eval process can take ~90 nanoseconds, or ~250 clock cycles (from the CPU knowing the address to the CPU receiving data).
By contrast, a hit in L1 cache has a load-use latency of 3 or 4 cycles, and a store-reload has a store-forwarding latency of 4 or 5 cycles on modern x86 CPUs. Things are simila...
Who wrote this programing saying? “Always code as if the guy who ends up maintaining your code will
...y who ends up maintaining your code will be a
violent psychopath who knows where you live. Code for readability.
Damn right!
So maybe John Woods?
Aug 22, 2014: Link is updated.
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How to mark a method as obsolete or deprecated?
...essage argument is optional but a good idea to communicate why the item is now obsolete and/or what to use instead.
Example:
[System.Obsolete("use myMethodB instead")]
void myMethodA()
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Unix - copy contents of one directory to another [closed]
And now Folder2/ looks like:
3 Answers
3
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Apply style to parent if it has child with css [duplicate]
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$ now replaced with ! appended to a selector. Look here for more info: w3.org/TR/selectors4/#subject
– Dmitry Polushkin
Mar 8 '17 at 14:17
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eval command in Bash and its typical uses
...s put double quotes around variable and command substitutions, unless you know you need to leave them off. Without the double quotes, the shell performs field splitting (i.e. it splits value of the variable or the output from the command into separate words) and then treats each word as a wildcard p...
Determine if a sequence contains all elements of another sequence using Linq [duplicate]
...nimum iteration even for methods with lambda expressions, such as OrderBy. Now, what you do inside those lambda expressions could be highly inefficient, but that is on you :-) I like the readability of yours too; I am considering adding your extension method with the Except implementation to get the...
Is it possible to run JavaFX applications on iOS, Android or Windows Phone 8?
...ad news first:
RoboVM is dead
Oracle killed JavaFX on Embedded Devices
Now, some good news:
JavaFX still runs on Android, iOS and most of the Embedded devices
JavaFXPorts SDK for android, iOS and embedded devices can be downloaded from here
JavaFXPorts project is still thriving and it is easie...
Transitioning from Windows Forms to WPF
For a long time now, I have been stuck with Windows Forms development (started with VB6, and has continued through to C# .NET 4.5), and I have pretty much hit the limit of what Windows Forms can do, both using pure .NET, and special effects with Native Code.
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How to convert an array of strings to an array of floats in numpy?
...list on the map return value if you use map, since map returns an iterator now.)
However, if it's already a numpy array of strings, there's a better way. Use astype().
import numpy as np
x = np.array(['1.1', '2.2', '3.3'])
y = x.astype(np.float)
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