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Mapping over values in a python dictionary
Given a dictionary { k1: v1, k2: v2 ... } I want to get { k1: f(v1), k2: f(v2) ... } provided I pass a function f .
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What is “lifting” in Scala?
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295
There are a few usages:
PartialFunction
Remember a PartialFunction[A, B] is a function defin...
+ operator for array in PHP?
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273
Quoting from the PHP Manual on Language Operators
The + operator returns the right-hand ar...
Run a string as a command within a Bash script
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284
You can use eval to execute a string:
eval $illcommando
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ADB Install Fails With INSTALL_FAILED_TEST_ONLY
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25 Answers
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Numpy how to iterate over columns of array?
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228
Just iterate over the transposed of your array:
for column in array.T:
some_function(colum...
Connect to a heroku database with pgadmin
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328
Open the "Properties" of the Heroku server in pgAdminIII and change the "Maintenance DB" value ...
How to convert an int to string in C?
...o convert your integer value to a string.
Here is an example:
int num = 321;
char snum[5];
// convert 123 to string [buf]
itoa(num, snum, 10);
// print our string
printf("%s\n", snum);
If you want to output your structure into a file there is no need to convert any value beforehand. You can ...