Discussion on: Daily Challenge #51 - Valid Curly Braces

[Alfredo Salzillo]

One line JS

const areCurlyBracesMatched = string => [...string]
  .map(c => c === '{' ? 1 : -1)
  .reduce((acc, n) => acc + (acc >= 0 ? n : -1), 0) === 0;

areCurlyBracesMatched ("{}{}{}") // true
areCurlyBracesMatched ("}{") // false
areCurlyBracesMatched ("{{}") // false
areCurlyBracesMatched ("{{}}{}{}") // true