export {}

if (!Array.prototype.at) {
  Array.prototype.at = function (index: number) {
    // Convert the index to an integer
    index = Math.trunc(index) || 0
    if (index < 0) {
      index += this.length
    }
    if (index < 0 || index >= this.length) {
      return undefined
    }
    return this[index]
  }
}

if (!String.prototype.at) {
  String.prototype.at = function (index: number) {
    index = Math.trunc(index) || 0
    if (index < 0) {
      index += this.length
    }
    if (index < 0 || index >= this.length) {
      return undefined
    }
    return this.charAt(index)
  }
}