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What is the difference between parseInt(string) and Number(string) in JavaScript? [duplicate]
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330
parseInt("123qwe")
returns 123
Number("123qwe")
returns NaN
In other words parseInt() pa...
Why use the params keyword?
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With params you can call your method like this:
addTwoEach(1, 2, 3, 4, 5);
Without params, you can’t.
Additionally, you can call the method with an array as a parameter in both cases:
addTwoEach(new int[] { 1, 2, 3, 4, 5 });
That is, params allows you to use a shortcut when calling...
adding multiple entries to a HashMap at once in one statement
...Integer>()
{{
put("One", 1);
put("Two", 2);
put("Three", 3);
}};
As a piece of warning, please refer to the thread Efficiency of Java “Double Brace Initialization" for the performance implications that it might have.
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An efficient way to transpose a file in Bash
...,j];
}
print str
}
}' file
output
$ more file
0 1 2
3 4 5
6 7 8
9 10 11
$ ./shell.sh
0 3 6 9
1 4 7 10
2 5 8 11
Performance against Perl solution by Jonathan on a 10000 lines file
$ head -5 file
1 0 1 2
2 3 4 5
3 6 7 8
4 9 10 11
1 0 1 2
$ wc -l < file
10000
$ time per...
how to add script src inside a View when using Layout
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3 Answers
3
Active
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TypeError: $.ajax(…) is not a function?
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13 Answers
13
Active
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Determine whether an array contains a value [duplicate]
...t yourself
– RaYell
Jul 25 '09 at 8:36
7
you should use a typed comparison with === to be compati...
Could not load file or assembly 'Newtonsoft.Json, Version=4.5.0.0, Culture=neutral, PublicKeyToken=3
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edited May 19 '16 at 12:31
s_a
16322 silver badges44 bronze badges
answered Apr 30 '14 at 7:00
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