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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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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...
find -exec cmd {} + vs | xargs
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107
Speed difference will be insignificant.
But you have to make sure that:
Your script will not...
Why is transposing a matrix of 512x512 much slower than transposing a matrix of 513x513?
...t has 4 lines, each holding 64 bytes. We first attempt to read the address 0x2710, which goes in set 28. And then we also attempt to read addresses 0x2F00, 0x3700, 0x3F00 and 0x4700. All of these belong to the same set. Before reading 0x4700, all lines in the set would have been occupied. Reading th...
How to handle more than 10 parameters in shell
I am using bash shell on linux and want to use more than 10 parameters in shell script
2 Answers
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Get the name of the currently executing method
$0 is the variable for the top level Ruby program, but is there one for the current method?
5 Answers
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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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Colspan all columns
...en the HTML is being rendered)? w3schools mentions you can use colspan="0" , but it doesn't say exactly what browsers support that value (IE 6 is in our list to support).
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(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 way to check a HDFS directory's size?
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10 Answers
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