I have read in a number of threads that Python pickle/cPickle cannot pickle lambda functions. However the following code works, using Python 2.7.6: import cPic
Some Excel native functions like VSTACK permit of infinite number of arguments, and they have an intellisense as follows: I would like to know how to define su
The goal is to iterate through rows of the character table and replace each character with it's substitute. The character table in this example is ={"&","&a
It is necessary to me to use std::function but I don't know what the following syntax means. std::function<void()> f_name = []() { FNAME(); }; What is
I have a model that produces an array of values that can be several hundred columns wide. Every 25th column contains a number that I need to add to the total. I
I very much want to use Map.computeIfAbsent but it has been too long since lambdas in undergrad. Almost directly from the docs: it gives an example of the ol
I would like to merge two Map with JAVA 8 Stream: Map<String, List<String>> mapGlobal = new HashMap<String, List<String>>(); Map<Str
Do lambda expressions have any use other than saving lines of code? Are there any special features provided by lambdas which solved problems which weren't easy
I want to mock a query provided on my repository like this: @Test public void GetByEmailSuccessful() { // setup mocks Mockito.when(this.personRepo.find
I have a large pandas dataframe where I want to count the number of values above a threshold (zero) in each column grouped by the values in one name column. Th
I have 5 dictionaries and I want a union of their keys. alldict = [dict1, dict2, dict3, dict4, dict5] I tried allkey = reduce(lambda x, y: set(x.keys()).un
What's the performance difference (if there is any) between these three approaches, both used to transform an array to another array? Using foreach Using array
New to AWS and found it quite straightforward so far but really getting stuck packaging a lambda function. I'm using node-lambda to try and run the function bu