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How to define @Value as optional
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answered Jul 8 '16 at 16:05
Andy BrownAndy Brown
7,73022 gold badges2828 silver badges4242 bronze badges
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git: switch branch without detaching head
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edited May 5 '14 at 16:40
user456814
answered Jan 22 '09 at 23:44
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Can C++ code be valid in both C++03 and C++11 but do different things?
Is it possible for C++ code to conform to both the C++03 standard and the C++11 standard, but do different things depending on under which standard it is being compiled?
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PowerShell script not accepting $ (dollar) sign
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answered Oct 23 '09 at 18:23
Shankar R10NShankar R10N
4,42811 gold badge1818 silver badges2424 bronze badges
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How to export plots from matplotlib with transparent background?
...e keyword argument transparent=True to save the image as a png file.
In [30]: x = np.linspace(0,6,31)
In [31]: y = np.exp(-0.5*x) * np.sin(x)
In [32]: plot(x, y, 'bo-')
Out[32]: [<matplotlib.lines.Line2D at 0x3f29750>]
In [33]: savefig('demo.png', transparent=True)
Result:
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What is the JSF resource library for and how should it be used?
...ary version.
WebContent
|-- resources
| `-- default
| `-- 1_0
| |-- css
| | `-- style.css
| |-- img
| | `-- logo.png
| `-- js
| `-- script.js
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When using this markup:
<h:outputStyles...
Rails: Check output of path helper from console
..., you can call app.post_path. This will work in Rails ~= 2.3 and >= 3.1.0.
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Display current date and time without punctuation
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edited May 15 '18 at 10:13
answered Dec 12 '13 at 18:41
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Determining complexity for recursive functions (Big O notation)
...O notation, for each function:
int recursiveFun1(int n)
{
if (n <= 0)
return 1;
else
return 1 + recursiveFun1(n-1);
}
This function is being called recursively n times before reaching the base case so its O(n), often called linear.
int recursiveFun2(int n)
{
if (n &...
How to git log in reverse order?
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340
Use the --reverse option:
git log --reverse
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