language agnostic - What is a lambda (function)? - Stack Overflow
Aug 19, 2008 · Lambda calculus codifies the correct way to do these substitutions. Given that y = x−1 is a valid rearrangement of the second equation, this: λ y = x−1 means a function …
Is there any difference betwen [=] and [&] in lambda functions?
Jan 14, 2014 · I was studying lambda function in c++11 recently. But I don't know if there is any difference between [=] and [&]. If there is, what the difference is? And in these two …
What is a lambda expression, and when should I use one?
Here is another really good reference which explains very well what are lambda expressions in C++: Microsoft.com: Lambda expressions in C++. I especially like how well it explains the …
How do add python libraries to AWS Lambda? - Stack Overflow
Feb 7, 2023 · To deploy a AWS Lambda function using AWS Serverless Application Model (SAM), you need to follow these steps: Create a SAM template: This is a YAML file that …
python - Syntax behind sorted (key=lambda: ...) - Stack Overflow
I don't quite understand the syntax behind the sorted() argument: key=lambda variable: variable[0] Isn't lambda arbitrary? Why is variable stated twice in what looks like a dict?
python - List comprehension vs. lambda + filter - Stack Overflow
Invalid comparison. First, you are not passing a lambda function to the filter version, which makes it default to the identity function. When defining if not None in the list comprehension you are …
Aggregating in pandas groupby using lambda functions
As @unutbu mentioned, the issue is not with the number of lambda functions but rather with the keys in the dict passed to agg() not being in data as columns. OP seems to have tried using …
Updating Lambda function to a new runtime - Stack Overflow
Apr 22, 2022 · aws --region REGION lambda list-functions \ --query 'Functions[?Runtime == `python3.6`].FunctionName' That command will return a list of function names that have the …
How to pass a querystring or route parameter to AWS Lambda …
Jul 10, 2015 · The Lambda function expects JSON input, therefore parsing the query string is needed. The solution is to change the query string to JSON using the Mapping Template.
Can I limit concurrent invocations of an AWS Lambda?
To limit the number of concurrent invocations of an AWS Lambda function, you can use the maximum concurrency feature for Lambda event source mappings. This is an attribute of the …