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How do I make and use a Queue in Objective-C?
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Numpy `logical_or` for more than two arguments
...ith a scalar instead of an array. So:
>>> np.any((x, y, z), axis=0)
array([ True, True, True, False], dtype=bool)
As you might expect, logical_and is similar—you can chain it, np.reduce it, functools.reduce it, or substitute all with an explicit axis.
What about other operations,...
In Vim, how do I apply a macro to a set of lines?
...ple/all lines:
Execute the macro stored in register a on lines 5 through 10.
:5,10norm! @a
Execute the macro stored in register a on lines 5 through the end of the file.
:5,$norm! @a
Execute the macro stored in register a on all lines.
:%norm! @a
Execute the macro store in register a on al...
Will ConfigurationManager.AppSettings[“blah”] throw an exception if “blah” doesn't exist?
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answered Jul 6 '10 at 14:46
Tim RobinsonTim Robinson
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You have already activated X, but your Gemfile requires Y
...way to do this.
Basically what's happening is that you've updated rake to 0.9.2 which now conflicts with the version specified in your Gemfile. Previously the latest version of rake you had matched the version in your Gemfile, so you didn't get any warning when simply using rake.
Yehuda Katz (one ...
`new function()` with lower case “f” in JavaScript
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edited Jun 20 '12 at 8:58
Quamis
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How big is too big for a PostgreSQL table?
...'t be an issue on it's own.
So roughly speaking 1 million rows a day for 90 days is 90 million rows. I see no reason Postgres can't deal with that, without knowing all the details of what you are doing.
Depending on your data distribution you can use a mixture of indexes, filtered indexes, and tab...
Why would iterating over a List be faster than indexing through it?
...I wanted to print the value of each element, if I write this:
for(int i = 0; i < 4; i++) {
System.out.println(list.get(i));
}
what happens is this:
head -> print head
head -> item1 -> print item1
head -> item1 -> item2 -> print item2
head -> item1 -> item2 -> it...
When is an interface with a default method initialized?
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+250
This is a very interesting issue!
It seems like JLS section 12.4.1 ought to cover this definitively. However, the behavior of Oracle ...
Matching a space in regex
...s is (note the space inside the regex):
$newtag = preg_replace ("/[^a-zA-Z0-9 ]/", "", $tag);
# ^ space here
If you also want trickery to ensure there's only one space between each word and none at the start or end, that's a little more complicated (and probably...