JSFiddle - React, Tailwind, and code Playground
by Ansmtz
JavaScript
/* const solve = arr => {
} */
const sortedArr = [-5, -3, -2, -1, 0].sort((a, b) => (a - b));
let prev = 0;
for(let i = 0; i < sortedArr.length; i++){
if(i !== 0 && sortedArr[i] - prev !== 1){
console.log(prev + 1);
}
prev = sortedArr[i];
}
/*
incr = 0;
el = 1 => incr = 1;
*/
/* [-5, -3, -2, -1, 0] => */
/* -3 + x = -4 */