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How to add semicolon after method call when inside parameter list in IntelliJ IDEA?
...e as it requires thinking about the context and it's three keys instead of one. But better than End; Semicolon, so thanks!
– robinst
Jun 23 '14 at 2:15
30
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Is there a “do … while” loop in Ruby?
...egin...end is quite powerful. The following is a common idiom to memoize a one-liner method with no params:
def expensive
@expensive ||= 2 + 2
end
Here is an ugly, but quick way to memoize something more complex:
def expensive
@expensive ||=
begin
n = 99
buf = ""
begin
...
Copy multiple files in Python
How to copy all the files present in one directory to another directory using Python.
I have the source path and the destination path as string.
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What is a segmentation fault?
...
Sorry for the bump but just a side note... none of your examples necessarily cause a segfault, in fact it's just undefined behavior ;-)
– oldrinb
Sep 15 '12 at 3:01
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How can I combine two HashMap objects containing the same types?
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If you get a NPE, then apparently you did not initialize one of your objects properly. Do you print the stacktrace in the catch block? So you know where the problem arises. But unless you post the full and exact code including the stack trace you will need to track that down on you...
How to determine if object is in array [duplicate]
...
+1. My answer was missing the point. This is the right one. (as a side note you can do exactly what the OP did extending Array.prototype)
– Pablo Fernandez
Jan 3 '11 at 18:30
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Is there a way to check if a file is in use?
...g(FileStream stream = file.Open(FileMode.Open, FileAccess.Read, FileShare.None))
{
stream.Close();
}
}
catch (IOException)
{
//the file is unavailable because it is:
//still being written to
//or being processed by another thread
...
Are there any Java method ordering conventions? [closed]
...me conventions list all the public methods first, and then all the private ones - that means it's easy to separate the API from the implementation, even when there's no interface involved, if you see what I mean.
Another idea is to group related methods together - this makes it easier to spot seams...
CSS Child vs Descendant selectors
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One important note is that a child selector is going to be faster than descendant selector, which can have a visible affect on pages with 1000's of DOM elements.
– Jake Wilson
Mar 22 '12...
How to get thread id from a thread pool?
... that I submit tasks to (limited to 5 threads). How can I find out which one of those 5 threads executes my task (something like "thread #3 of 5 is doing this task")?
...