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How can I recover the return value of a function passed to multiprocessing.Process?
...(p)
p.start()
for p in processes:
ret = q.get() # will block
rets.append(ret)
for p in processes:
p.join()
return rets
Queue is a blocking, thread-safe queue that you can use to store the return values from the child processes. So you have to pass the qu...
Select the values of one property on all objects of an array in PowerShell
...native:
# By property name (string):
$objects.ForEach('Name')
# By script block (more flexibility; like ForEach-Object)
$objects.ForEach({ $_.Name })
This approach is similar to member enumeration, with the same tradeoffs, except that pipeline logic is not applied; it is marginally slower, though...
Center image in table td in CSS
...
Simple way to do it for html5 in css:
td img{
display: block;
margin-left: auto;
margin-right: auto;
}
Worked for me perfectly.
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Best Practice for Forcing Garbage Collection in C#
...e GC to be done before each iteration, outside of my "performance measured block", because I feel that more closely models the situation in production, in which the GC could/should be forced after navigating each "map".
– corlettk
Sep 12 '12 at 6:48
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Continuously read from STDOUT of external process in Ruby
...buffered. This can be solved by adding a STDOUT.flush statement inside the block in random.rb. But if you can't change the source, you have to work around this. You can't flush it from outside the process.
If the subprocess can print to shell in real-time, then there must be a way to capture this w...
Calendar Recurring/Repeating Events - Best Storage Method
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Storing "Simple" Repeating Patterns
For my PHP/MySQL based calendar, I wanted to store repeating/recurring event information as efficiently as possibly. I didn't want to have a large number of rows, and I wanted to easily lookup all events that would take place on a s...
Difference between Static and final?
...rd can be used in 4 scenarios
static variables
static methods
static blocks of code
static nested class
Let's look at static variables and static methods first.
Static variable
It is a variable which belongs to the class and not to object (instance).
Static variables are initialized only...
What's the equivalent for eclipse's ALT+UP/DOWN (move line) in Visual Studio?
...ace and the using line all the way to the end of the former namespace code block.
– Carl G
Oct 2 '12 at 18:30
1
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Can we add a inside H1 tag?
...
Yes you can. It can be used to format a part of a h1 block:
<h1>Page <span class="highlight">Title</span></h1>
If the style applies to the entire h1 block, I do this:
<h1 class="highlight">Page Title</h1>
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Why does Google prepend while(1); to their JSON responses?
... script tag or eval function. The braces {} can be interpreted as either a block of code or an object literal, and by itself, JavaScript prefers the former. As a block of code it is, of course, invalid. By this logic, I can’t see any foreseeable changes in future browser behaviour.
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