Javascript ToArray To Avoid Cutting Characters

I have a quick question. This is my code, and problem with it is when i run some emojis thro this it displays them as ?, cause it cuts the emoji in half. angular.module('Joe.filter

Solution 1:

In ES6, .charAt and [indexing] still work with 16-bit units, but String.iterator is aware of 32-bit chars. So, to extract the first char which is possibly beyond the plane 0, you have to force iteration on the string, for example:

word = '📌HELLO';

let b = [...word][0]
// or
let [c] = word

console.log(b, c)

Another option is to extract the first code point and convert it back to a character:

let a = String.fromCodePoint(word.codePointAt(0))

To answer the bonus question, I have this rather trivial function in my "standard repertoire"

let first = ([a]) => a

Using this func, your initials logic can be written as

let initials = str => str.split(' ').slice(0, 2).map(first).join('')