How to convert an array of string integers to an array of integers? Ruby-CodePudding

I have an array:

all_ages = ["11", "9", "10", "8", "9"]

and I want to convert it to an array of integers to hopefully make it easier to add them all together. Any help greatly appreciated, looking for level one solutions.

CodePudding user response：

all_ages = ["11", "9", "10", "8", "9"]

Code

p all_ages.map(&:to_i).sum

p all_ages.map { |x| x.to_i }.sum

Output

CodePudding user response：

Enumerable#sum can be called with a block telling Ruby how to sum the elements of the array, in this case, to call String#to_i on element first.

all_ages = ["11", "9", "10", "8", "9"]
all_ages.sum(&:to_i)
#=> 47