How to remove a character from the middle of the string

Let's see an example on how to remove the middle char of a string in JavaScript:

javascript
// We want to remove 'e' and get 'Elna'
let string = 'Elena';

// Odd strings  → middle point will be an integer
// Even strings → middle point will be a decimal
let middle = (string.length - 1)/2;

// We filter those indexes that are different from the middle point
// Notice how for decimal numbers, we won't filter anything, because integer !== decimal
let sliced = [...string].filter((char, index) => index !== middle).join('');

console.log(sliced);
// Elna

In one line of code:

javascript
let sliced = [...string].filter((char, index) => index !== (string.length - 1)/2).join('');