How the answer is 3?

Question

var len = 0;
for(let ch of "Solo"){
if(ch>'a' && ch<'z')
len++ ;}
console.log(len);
//Ans : 3

Answer 1

The S is is capital, and does not fall in the range between lowercase “a” and “z”. Therefor only 3 characters meet the condition and increase you len counter.

Answer 2

There are 3 letters between 'a' and 'z' in the string: o, l, o

Answer 3

Got it. thanks