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Which regular expression operator means 'Don't' match this character?
...ion operators, and always follow a matching operator. Thus, a+ means match one or more of a, [a-c0]+ means match one or more of a, b, c or 0, while [^a-c0]+ would match one or more of anything that wasn't a, b, c or 0.
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How do I write JSON data to a file?
...dler of the JSON file can correctly handle non-ASCII data, you can specify one and set ensure_ascii=False.
– phihag
Apr 19 '16 at 18:47
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JComboBox Selection Change Listener?
...ctionListener (new ActionListener () {
public void actionPerformed(ActionEvent e) {
doSomething();
}
});
@John Calsbeek rightly points out that addItemListener() will work, too. You may get 2 ItemEvents, though, one for the deselection of the previously selected item, and another ...
How can I do string interpolation in JavaScript?
...urious about this now, this test bed can be used to play around until everyone gets support for this.
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are there dictionaries in javascript like python?
... used to simulate a dictionary as:
var dict = new JSdict();
dict.add(1, "one")
dict.add(1, "one more")
"Duplicate keys not allowed!"
dict.getVal(1)
"one"
dict.update(1, "onne")
dict.getVal(1)
"onne"
dict.remove(1)
dict.getVal(1)
"Key not found!"
This is just a basic simulation.
It can be f...
Tricks to manage the available memory in an R session
... can't back this idea up enough. I've taught R to a few people and this is one of first things I say. This also applies to any language where development incorporates a REPL and a file being edited (i.e. Python). rm(ls=list()) and source() works too, but re-opening is better (packages cleared too).
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When to use lambda, when to use Proc.new?
In Ruby 1.8, there are subtle differences between proc/lambda on the one hand, and Proc.new on the other.
14 Answers
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RESTful call in Java
...how to make the call. Do I need to use the URLConnection or others? Can anyone help me. thank you.
11 Answers
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How can I change the color of AlertDialog title and the color of the line under it
...thub for making quickly customized holo-style dialogs (assuming that the phone supports the Holo style). You can find the project here: https://github.com/danoz73/QustomDialog
It should easily enable going from boring blue to exciting orange!
The project is basically an example of using a custom...
Difference between WAIT and BLOCKED thread states
...learer than just explaining each of the two states in isolation (which is done by "More Than Five"'s answer
– Kumar Manish
Aug 4 '13 at 19:08
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