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How do I sort an array of hashes by a value in the hash?
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Ruby's sort doesn't sort in-place. (Do you have a Python background, perhaps?)
Ruby has sort! for in-place sorting, but there's no in-place variant for sort_by in Ruby 1.8. In practice, you can do:
sorted = sort_me.sort_by { |k| k["value...
In CoffeeScript how do you append a value to an Array?
...ray prototype methods in the book, since there's plenty of good JavaScript documentation out there already. See, for example, developer.mozilla.org/en/JavaScript/Reference/Global_Objects/…
– Trevor Burnham
Sep 13 '11 at 15:00
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How do I get jQuery autocompletion in TypeScript?
If I'm working in a TypeScript .ts file, what can I do to get jQuery Intellisense/autocompletion when I type the $ character?
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How to pass parameters to a modal?
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this undefined error was doing my head in until i saw your answer! Works like a charm!
– Dan
Aug 8 '15 at 12:35
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Object-orientation in C
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int happiness;
};
void monkey_dance(struct monkey *monkey)
{
/* do a little dance */
}
To get things like inheritance and polymorphism, you have to work a little harder. You can do manual inheritance by having the first member of a structure be an instance of the superclass, and then y...
How to convert object array to string array in Java
...get this one to work, where the long-form example in the original question does work. It throws java.lang.ArrayStoreException. I'm getting the object array from the toArray method on a generic ArrayList containing my custom type. Is this not expected to work with generics or something?
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How do I center text horizontally and vertically in a TextView?
How do I center the text horizontally and vertically in a TextView , so that it appears exactly in the middle of the TextView in Android ?
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Why does the default parameterless constructor go away when you create one with parameters
...couldn't add the constructor if you've added your own - the compiler could do pretty much whatever it wants! However, you have to look at what makes most sense:
If I haven't defined any constructor for a non-static class, I most likely want to be able to instantiate that class. In order to allow...
How can I use grep to find a word inside a folder?
In Windows, I would have done a search for finding a word inside a folder. Similarly, I want to know if a specific word occurs inside a directory containing many sub-directories and files. My searches for grep syntax shows I must specify the filename, i.e. grep string filename .
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How do I execute a string containing Python code in Python?
How do I execute a string containing Python code in Python?
14 Answers
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