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Saving enum from select in Rails 4.1
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No need converting the enum hash to array with to_a. This suffice:
f.select :color, Wine.colors.map { |key, value| [key.humanize, key] }
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What does “atomic” mean in programming?
...s. That means that another thread might read the value of foo, and see the intermediate state.
Making the operation atomic consists in using synchronization mechanisms in order to make sure that the operation is seen, from any other thread, as a single, atomic (i.e. not splittable in parts), opera...
How do I properly escape quotes inside HTML attributes?
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@Raptor I said if the value contains double quotes, convert them to single quotes. If the value contains single quotes, then it will be no problem.
– csonuryilmaz
Oct 12 '14 at 20:23
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TypeScript sorting an array
...han <.
Other Types
If you are comparing anything else, you'll need to convert the comparison into a number.
var stringArray: string[] = ['AB', 'Z', 'A', 'AC'];
var sortedArray: string[] = stringArray.sort((n1,n2) => {
if (n1 > n2) {
return 1;
}
if (n1 < n2) {
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Spring DAO vs Spring ORM vs Spring JDBC
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Here is an introduction to each mentioned technology.
Spring-DAO
Spring-DAO is not a spring module in a strict sense, but rather conventions that should dictate you to write DAO, and to write them well. As such, it does neither provid...
Cloning an Object in Node.js
... @ShadowWizard these are different methods. This one simply converts to json and back to object, while linked answer uses Object.keys() to iterate through object
– mente
Oct 16 '13 at 11:21
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What's the most efficient test of whether a PHP string ends with another string?
...eedle), but this method requires that and copying it in full, and possibly converting the entire thing into lowercase to boot.
– David Harkness
Aug 9 '16 at 6:01
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Allow multiple roles to access controller action
...abloker Alternatively you can create an enum with an Flags attribute, e.g. Convert.ToString(CustomRoles.Administrator | CustomRoles.User); - annoying part is that this requires an explicit conversion
– cstruter
Sep 14 '12 at 9:41
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What does the caret operator (^) in Python do?
...okes the __xor__() or __rxor__() method of the object as needed, which for integer types does a bitwise exclusive-or.
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Best way to change the background color for an NSView
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Thanks. I needed to convert the dirtyRect to a CGRect. Ammended last line to CGContextFillRect(context, NSRectToCGRect(dirtyRect)); Can you edit your answer?
– Ross
Feb 11 '11 at 21:48
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