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How to change a nullable column to not nullable in a Rails migration?
... I go about doing this assuming there are null rows in that database? I'm ok with setting those columns to Time.now if they're currently null.
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Load multiple packages at once
How can I load a bunch of packages at once with out retyping the require command over and over? I've tried three approaches all of which crash and burn.
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How do you access command line arguments in Swift?
...re delighted to announce ArgumentParser, a new open-source library that makes it straightforward — even enjoyable! — to parse command-line arguments in Swift.
https://swift.org/blog/argument-parser/
Swift Argument Parser
https://github.com/apple/swift-argument-parser
Begin by declaring a type...
bash/fish command to print absolute path to a file
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Benjamin BannierBenjamin Bannier
42.3k1010 gold badges5353 silver badges7676 bronze badges
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Pass an array of integers to ASP.NET Web API?
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You just need to add [FromUri] before parameter, looks like:
GetCategories([FromUri] int[] categoryIds)
And send request:
/Categories?categoryids=1&categoryids=2&categoryids=3
share
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Reading my own Jar's Manifest
...anifest = new Manifest(resources.nextElement().openStream());
// check that this is your manifest and do what you need or get the next one
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} catch (IOException E) {
// handle
}
}
You can try checking whether getClass().getClassLoader() is an instance of java.net.URLCla...
How do I create a basic UIButton programmatically?
...tTitle:@"Show View" forState:UIControlStateNormal];
button.frame = CGRectMake(80.0, 210.0, 160.0, 40.0);
[view addSubview:button];
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CSS3 Transparency + Gradient
RGBA is extremely fun, and so is -webkit-gradient , -moz-gradient , and uh... progid:DXImageTransform.Microsoft.gradient ... yeah. :)
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Get the height and width of the browser viewport without scrollbars using jquery?
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Salman von Abbas
20.8k88 gold badges6464 silver badges5656 bronze badges
answered Jan 9 '12 at 19:58
KyleKyle
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How to test equality of Swift enums with associated values
...atically synthesize the necessary methods such that XCTAssert(t1 == t2) works. The key is to add the Equatable protocol to your enum.
enum SimpleToken: Equatable {
case Name(String)
case Number(Int)
}
let t1 = SimpleToken.Number(123)
let t2 = SimpleToken.Number(123)
Before Swift 4.1
As o...