You can use map and pass the String constructor as a function, which will turn each number into a string:
sphValues.map(String) //=> ['1','2','3','4','5']
This will not mutate sphValues. It will return a new array.
You can use map and pass the String constructor as a function, which will turn each number into a string:
sphValues.map(String) //=> ['1','2','3','4','5']
This will not mutate sphValues. It will return a new array.