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JavaScript hashmap equivalent
... all costs, especially, if I know what makes my objects unique.
Update in 2014: Answered back in 2008 this simple solution still requires more explanations. Let me clarify the idea in a Q&A form.
Your solution doesn't have a real hash. Where is it???
JavaScript is a high-level language. Its basi...
how to concatenate two dictionaries to create a new one in Python? [duplicate]
...the resulting list:
$ python -mtimeit -s'd1={1:2,3:4}; d2={5:6,7:9}; d3={10:8,13:22}' \
'd4 = dict(d1.items() + d2.items() + d3.items())'
100000 loops, best of 3: 4.93 usec per loop
Fastest: exploit the dict constructor to the hilt, then one update:
$ python -mtimeit -s'd1={1:2,3:4}; d2={5:6,7:9...
DateTime “null” value
...
answered Oct 21 '08 at 12:56
Joel CoehoornJoel Coehoorn
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Can I use assert on Android devices?
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edited Mar 11 '10 at 8:40
Janusz
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Removing duplicate rows in Notepad++
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answered Oct 18 '10 at 10:46
Colin PickardColin Pickard
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What happens if a finally block throws an exception?
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answered May 26 '10 at 8:26
Henk HoltermanHenk Holterman
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Parsing a JSON string in Ruby
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Andrew Marshall
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answered Mar 23 '11 at 19:41
GregGreg
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Unix command to find lines common in two files
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220
The command you are seeking is comm. eg:-
comm -12 1.sorted.txt 2.sorted.txt
Here:
-1 : supp...
How to close Android application?
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140
Android has a mechanism in place to close an application safely per its documentation. In the l...
Why should I prefer to use member initialization lists?
...call to a default constructor. Consider:
class A
{
public:
A() { x = 0; }
A(int x_) { x = x_; }
int x;
};
class B
{
public:
B()
{
a.x = 3;
}
private:
A a;
};
In this case, the constructor for B will call the default constructor for A, and then initialize a.x ...