I'm looking for a way to count how many instances of a specific character there are in a 2D array that I'm working with. For example, when I print the array out, it can look like this:
[['.', '.'], ['.', 'R']]
Occasionally this array will be much larger, and I'm looking for a nice way to get the number of instances of something like 'R' for example, so that I can use it in a future if statement.
A more condensed way would be:
def countChar(char, list):
return sum([i.count(char) for i in list])
This doesn't need to be a function, you could use it like:
test=[['x','r','a'],['r','t','u'],['r','r','R']]
sum([i.count('r') for i in test])
Which returns 4.
Unless I completely misunderstood your question, this should fit you nicely.
def count_chars(char, list):
count = 0
for element in list:
count += element.count(char)
return count
I'm sure there is a more performant way of doing this but I'll leave that for you to explore ;)
