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Multidimensional Array [][] vs [,] [duplicate]
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501
One is an array of arrays, and one is a 2d array. The former can be jagged, the latter is unif...
Why not use Double or Float to represent currency?
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1028
Because floats and doubles cannot accurately represent the base 10 multiples that we use for m...
How to try convert a string to a Guid [duplicate]
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301
new Guid(string)
You could also look at using a TypeConverter.
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The way to check a HDFS directory's size?
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10 Answers
10
Active
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Pythonic way of checking if a condition holds for any element of a list
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any():
if any(t < 0 for t in x):
# do something
Also, if you're going to use "True in ...", make it a generator expression so it doesn't take O(n) memory:
if True in (t < 0 for t in x):
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How to find controls in a repeater header or footer
...peater.
To find a control in the header:
lblControl = repeater1.Controls[0].Controls[0].FindControl("lblControl");
To find a control in the footer:
lblControl = repeater1.Controls[repeater1.Controls.Count - 1].Controls[0].FindControl("lblControl");
With extension methods
public static clas...
(Deep) copying an array using jQuery [duplicate]
...te that although I've used shift().shift() above, the point is just that b[0][0] contains a pointer to a[0][0] rather than a value.
Likewise delete(b[0][0]) also causes a[0][0] to be deleted and b[0][0]=99 also changes the value of a[0][0] to 99.
jQuery's extend method does perform a deep copy ...
The thread has exited with code 0 (0x0) with no unhandled exception
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BlueMBlueM
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How do you know when to use fold-left and when to use fold-right?
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105
You can transfer a fold into an infix operator notation (writing in between):
This example fol...
Why does ~True result in -2?
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240
int(True) is 1.
1 is:
00000001
and ~1 is:
11111110
Which is -2 in Two's complement1
1 Fl...