would you mind to state some of the so many ways of summing up all the numbers in a list of strings for python? And give a counter example for lua?
list = ["1", "2", "3"]
sum1 = sum(int(num) for num in list)
sum2 = reduce(map(list, int), operator.add)
sum3 = 0
for num in list:
sum3 += int(num)
Lua only has the third of these three options. I don't really consider this a particularly compelling advantage as a user.At least, I know I sure spend a lot more time reading code than I do writing code; so I appreciate any language that tries to optimize for that use-case and helps me minimize my cognitive overhead.
function curry(f,x)
return function(...)
return f(x, ...)
end
end
function reduce(f,t,r)
r = r or t[1]
for i=2,#t do
r = f(r,t[i])
end
return r
end
addf = function(a,b) return a+b end
sum = curry(reduce, addf)
t = {"1", "2", "12"}
print(reduce(addf, t)) -- 15
print(sum(t)) -- 15
res = 0
for i=1,#t do
res = res + t[i]
end
print(res) -- 15
res = 0
for k,v in ipairs(t) do
res = res + v
end
print(res) -- 15