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DateTime “null” value

...e a class which might have a DateTime property value set or not. I was thinking of initializing the property holder to DateTime.MinValue, which then could easily be checked. I guess this is a quite common question, how do you do that? ...
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In Vim, how do I apply a macro to a set of lines?

...peat that macro on all of the remaining lines in the file. Is there a quick way to do this? 4 Answers ...
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Is there any way to call a function periodically in JavaScript?

... edited Apr 9 '14 at 8:25 Jack Miller 3,89711 gold badge3030 silver badges4040 bronze badges answered Aug 3 '09 at 20:35 ...
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How to query MongoDB with “like”?

I want to query something with SQL's like query: 39 Answers 39 ...
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Why doesn't Haskell's Prelude.read return a Maybe?

... of GHC 7.6, readMaybe is available in the Text.Read module in the base package, along with readEither: http://hackage.haskell.org/packages/archive/base/latest/doc/html/Text-Read.html#v:readMaybe Great question! The type of read itself isn't changing anytime soon because that would break lots of ...
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How to get different colored lines for different plots in a single figure?

...t.plot(x, 3 * x) plt.plot(x, 4 * x) plt.show() And, as you may already know, you can easily add a legend: import matplotlib.pyplot as plt import numpy as np x = np.arange(10) plt.plot(x, x) plt.plot(x, 2 * x) plt.plot(x, 3 * x) plt.plot(x, 4 * x) plt.legend(['y = x', 'y = 2x', 'y = 3x', 'y =...
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How to validate an e-mail address in swift?

Does anyone know how to validate an e-mail address in Swift? I found this code: 34 Answers ...
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Check if string contains only digits

I want to check if a string contains only digits. I used this: 14 Answers 14 ...
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Make EditText ReadOnly

I want to make a read-only EditText view. The XML to do this code seems to be android:editable="false" , but I want to do this in code. ...
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How can I remove the top and right axis in matplotlib?

...t'].set_visible(False) ax.spines['top'].set_visible(False) # Only show ticks on the left and bottom spines ax.yaxis.set_ticks_position('left') ax.xaxis.set_ticks_position('bottom') plt.show() share | ...