OrderedCountofCharacters.js

// Count the number of occurrences of each character and return it as a (list of tuples) in order of appearance. For empty output return (an empty list).

// Consult the solution set-up for the exact data structure implementation depending on your language.

// Example:

// orderedCount("abracadabra") == [['a', 5], ['b', 2], ['r', 2], ['c', 1], ['d', 1]]


const orderedCount = function (text) {
  let object = new Map()
  
  for(let i = 0; i < text.length; i++){
    let letter = text[i]
    if(object.has(letter)){
      let currentValue = object.get(letter)
      object.set(letter, currentValue+1)
    } else {
      object.set(letter, 1)
    }
  } 
  return [...object.entries()]
}

// refactor

const orderedCount = str => [...new Set([...str])].map(char => [char, str.split(char).length - 1])