Why does _sortBy not work with capital letters?

Question

I have one array. I need to sort that array using lodash. I used _.sortBy but it is not sorting capital string, why ?

Here is my code: https://jsfiddle.net/2q9cdjug/

var arr = [
    { name: "pq" },
    { name: "ab" },
    { name: "QE" }  
]
var a = _.sortBy(arr, 'name');
console.log(a)

Answer 1

But it is not sorting capital string why?

Because 'a' !== 'A'

You can use callback function, So you can sort them by converting to same cases using either toLowerCase() or toUpperCase()

a = _.sortBy(arr, function (x) {
    return x.name.toLowerCase();
});

DEMO

Answer 2

This is because of the ascii table of characters

edit: javascript uses utf-16, and not the table below (utf-8), but it is a good example to understand because utf-16 table is long

a is 97 and A is 65

if you try console.log("a" > "A") //true sorting strings should be in lowercase