Top "Map-function" questions

Using map() function with keyword arguments

Here is the loop I am trying to use the map function on: volume_ids = [1,2,3,4,5] ip = '172.12.13.122' for volume_…

python arguments map-function

Can I use index information inside the map function?

Let's assume there is a list a = [1, 3, 5, 6, 8]. I want to apply some transformation on that list and I want to …

python python-2.7 map-function

What's the most idiomatic way of working with an Iterator of Results?

I have code like this: let things = vec![/* ...*/]; // e.g. Vec<String> things .map(|thing| { let a = try!(…

rust iterator map-function filterfunction rust-result

Python: Anyway to use map to get first element of a tuple

I have a tuple of tuples and I want to put the first value in each of the tuples into …

python map-function

Using multiple map functions vs. a block statement in a map in a java stream

Say I have the following code data.stream() .map(x -> { Object a = maybeReturnsNull(x); return a == null ? defaultValue : …

java java-8 java-stream map-function

Python: Difference between filter(function, sequence) and map(function, sequence)

I'm reading through the Python documentation to really get in depth with the Python language and came across the filter …

python functional-programming map-function filterfunction

Python: Something like `map` that works on threads

I was sure there was something like this in the standard library, but it seems I was wrong. I have …

python multithreading parallel-processing map-function

Python how to reduce multiple lists?

I am able to use map and sum to achieve this functionality, but how to use reduce? There are 2 lists: …

python sum reduce map-function

STL name for the "map" functional programming function

I would like to be able to write something like char f(char); vector<char> bar; vector<…

c++ map-function

Java - Spark SQL DataFrame map function is not working

In Spark SQL when I tried to use map function on DataFrame then I am getting below error. The method …

java sql apache-spark map-function