Codecademy export

main.js

// Returns a random DNA base
const returnRandBase = () => {
  const dnaBases = ['A', 'T', 'C', 'G']
  return dnaBases[Math.floor(Math.random() * 4)] 
}

// Returns a random single stand of DNA containing 15 bases
const mockUpStrand = () => {
  const newStrand = []
  for (let i = 0; i < 15; i++) {
    newStrand.push(returnRandBase())
  }
  return newStrand
}

//console.log(returnRandBase())

const pAequorFactory =  (num, dnabase) => {
  return {
    specimenNum: num,
    dna: dnabase,
    mutate() {
      const randIndex = Math.floor(Math.random() * this.dna.length);
      //i like to console.log the value of randIndex at this point?
      console.log(randIndex) 
      let newBase = returnRandBase();
      while (this.dna[randIndex] === newBase) {
        newBase = returnRandBase();
      }
      this.dna[randIndex] = newBase;
      return this.dna;
      
    }
  }
};