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Most efficient way to determine if a Lua table is empty (contains no entries)?
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Your code is efficient but wrong. (Consider {[false]=0}.) The correct code is
if next(myTable) == nil then
-- myTable is empty
end
For maximum efficiency you'll want to bind next to a local variable, e.g.,
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local next = next
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... if next(...) ...
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Sublime Text 2 - Show file navigation in sidebar
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10 Answers
10
Active
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A generic list of anonymous class
In C# 3.0 you can create anonymous class with the following syntax
22 Answers
22
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How to make code wait while calling asynchronous calls like Ajax [duplicate]
...re the callbacks are inappropriate, for example: webview.clearData({since: 0}, clearDataType, function(){ ... // recreate fresh webview }); will pose a resource hog (chrome will create a new copy of local storage waiting until old one will be freed from references from inside callback which will nev...
Why can I add named properties to an array as if it were an object?
...ay['B'] = "Berlin";
alert(myArray.length);
This won't display '2', but '0' - effectively, no elements have been added to the array, just some new properties added to the array object.
share
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imp...
List of lists into numpy array
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205
If your list of lists contains lists with varying number of elements then the answer of Ignacio...
How do I find which program is using port 80 in Windows? [duplicate]
How do I find which program is using port 80 in Windows?
6 Answers
6
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In Python, using argparse, allow only positive integers
...u:
def check_positive(value):
ivalue = int(value)
if ivalue <= 0:
raise argparse.ArgumentTypeError("%s is an invalid positive int value" % value)
return ivalue
parser = argparse.ArgumentParser(...)
parser.add_argument('foo', type=check_positive)
This is basically just an a...
fatal: early EOF fatal: index-pack failed
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First, turn off compression:
git config --global core.compression 0
Next, let's do a partial clone to truncate the amount of info coming down:
git clone --depth 1 <repo_URI>
When that works, go into the new directory and retrieve the rest of the clone:
git fetch --unshallow
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Disable scrolling in webview?
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Soviut
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answered Mar 11 '11 at 14:50
pecepspeceps
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