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Finding Number of Cores in Java
...ly available to the JVM (at startup I guess). Using CPU affinity the user/OS can restrict the number of "cores" a JVM sees. You can even do it on a running JVM but I'm not too sure how this influence availableProcessors().
– SyntaxT3rr0r
Jan 21 '11 at 16:17
...
Replace multiple characters in one replace call
... double click/cscript/wscript: var chars = {a:'1', b:'2', c:'3'}; var s = '123abc123'; var u = s.replace(/[abc]/g, function(m) { return chars[m]; }); WScript.echo(u);
– Dmitry
Jun 15 '18 at 20:52
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In JavaScript, does it make a difference if I call a function with parentheses?
...not using ()'s
Lets take this function for example:
function foo(){
return 123;
}
if you log "foo" - without ()
console.log(foo);
---outout------
function foo(){
return 123;
}
Using no () means to fetch the function itself. You would do this if you want it to be passed along as a callback.
if ...
How can I remove a trailing newline?
...ut record separator like awk and Perl have.
– Peter Hosey
Nov 9 '08 at 6:13
7
@csde_rats, that's ...
How do I properly escape quotes inside HTML attributes?
...gh, try <option value='<?php echo htmlentities("' onmouseover='alert(123);' foo='"); ?>' /> - make sure you use it with ENT_QUOTES, this is safe: <option value='<?php echo htmlentities("' onmouseover='alert(123);' foo='", ENT_QUOTES); ?>' /> , but in addition to ENT_QUOTES y...
How do I install pip on macOS or OS X?
I spent most of the day yesterday searching for a clear answer for installing pip (package manager for Python). I can't find a good solution.
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How accurate is python's time.sleep()?
...
The accuracy of the time.sleep function depends on your underlying OS's sleep accuracy. For non-realtime OS's like a stock Windows the smallest interval you can sleep for is about 10-13ms. I have seen accurate sleeps within several milliseconds of that time when above the minimum 10-13ms.
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Can you do a partial checkout with Subversion?
...directories under trunk/ with lots of files in each and only needed 3 of those directories, would it be possible to do a Subversion checkout with only those 3 directories under trunk?
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App Inventor 2 软件著作权（软著）申请指南 · App Inventor 2 中文网
...验的，建议找人代理一下，细节还是很多很繁琐的。
fun123.cn 提供专业的 AppInventor 源码软著代申请服务，承诺不下证退全款。
5、注意事项
不要有 Logo——有概率会要求提供证明材料，PS掉就行。
不要有其...
Is there a standard way to list names of Python modules in a package?
...
Maybe this will do what you're looking for?
import imp
import os
MODULE_EXTENSIONS = ('.py', '.pyc', '.pyo')
def package_contents(package_name):
file, pathname, description = imp.find_module(package_name)
if file:
raise ImportError('Not a package: %r', package_name)
...