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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
What difference does that make? the input isn't nullable and the method Replace works fine with an empty string.
Man, seriously, thanks for your comment! It's a information so interesting! I really had no idea about that.
What is the point of initializing a variable to store in memory, when you can just return the actual operation itself?
Love that you implicitely checked for a null or empty string rather than the other submissions here just making a call to the Replace(). Makes it extremely clear on what your edge cases are! Nice job!
Good, but instead, why not break this down into one line and wrap the entire statement in the int() method?
Love the use of lambda functionality. This is very fitting for this simply solved problem
I would recommend other solutions. No point in causing a raise in time complexity (hence the loop).
This can be achieved in much much simpler and more readable ways!
This comment is hidden because it contains spoiler information about the solution
This is good for readability. Easy to understand for beginners!