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How do I set cell value to Date and apply default Excel date format?
I've been using Apache POI for some time to read existing Excel 2003 files programmatically. Now I have a new requirement to create entire .xls files in-memory (still using Apache POI) and then write them to a file at the end. The only problem standing in my way is the handling of cells with dates.
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Are there console commands to look at whats in the queue and to clear the queue in Sidekiq?
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90
I haven't ever used Sidekiq, so it's possible that there are methods just for viewing the queued...
Initializing a two dimensional std::vector
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208
Use the std::vector::vector(count, value) constructor that accepts an initial size and a defaul...
How to merge a transparent png image with another image using PIL
....png")
foreground = Image.open("test2.png")
background.paste(foreground, (0, 0), foreground)
background.show()
First parameter to .paste() is the image to paste. Second are coordinates, and the secret sauce is the third parameter. It indicates a mask that will be used to paste the image. If you p...
How to remove an element from an array in Swift
... without the elements you want removed, e.g:
let pets = animals.filter { $0 != "chimps" }
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Why is this program valid? I was trying to create a syntax error
...bar)
to be written as
new Foo $bar
So that means
Syntax error ! exit 0;
is the same as
error->Syntax(! exit 0);
or
error->Syntax(!exit(0));
Not only is it valid syntax, it doesn't result in a run-time error because the first thing executed is exit(0).
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What is the best way to test for an empty string in Go?
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10 Answers
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How do you add an array to another array in Ruby and not end up with a multi-dimensional result?
...note the asterisk, and that a2 is the receiver
or splice:
a1[a1.length, 0] = a2
a1[a1.length..0] = a2
a1.insert(a1.length, *a2)
or append and flatten:
(a1 << a2).flatten! # a call to #flatten instead would return a new array
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Is there a C# type for representing an integer Range?
...need to store an integer range. Is there an existing type for that in C# 4.0?
10 Answers
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A regex to match a substring that isn't followed by a certain other substring
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.* any character except \n (0 or more times
(matching the most amount possible))
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bar 'bar'
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