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
}

function pAequorFactory (number, array) {
  return {
    specimenNum: number,
    dna: array,
    mutate() {
      const randomNumb = Math.floor(Math.random()*15);
      const pickRandBase = this.dna[randomNumb];
      var newBase = "";
      do {
        newBase = returnRandBase();
      } while (pickRandBase === newBase);
      this.dna[randomNumb] = newBase;
    },
    compareDNA(input) {
      let DNACounter = 0;
      for (i = 0; i < 15; i++) {
        if (this.dna[i] === input["dna"][i]) {
          DNACounter++;
        }
      }
      const percent = Math.round(DNACounter / 15 * 100);
      console.log(`Specimen # ${this.specimenNum} is ${percent}% identical with specimen # ${input["specimenNum"]}.`)
      return percent;
    },
    willLikelySurvive() {
      CGCounter = 0;
      for (i = 0; i < 15; i++) {
        if (this.dna === "C" || this.dna === "G") {
          CGCounter++;
        }
      }
      return (CGCounter / 15) >= 0.6;
    },
    complementStrand() {
      const complementDNA = [];
      for (let base of this["dna"]) {
        switch (base) {
          case "A":
          complementDNA.push("T");
          break;
          case "T":
          complementDNA.push("A");
          break;
          case "C":
          complementDNA.push("G");
          break;
          case "G":
          complementDNA.push("C");
          break;
          default:
          complementDNA.push("unidentified");
        }
      }
      return complementDNA;
    }
  }
}
// Make 30 Organisms
const pAequor = [];
for (i = 1; i < 31; i++) {
  pAequor.push(pAequorFactory(i, mockUpStrand()));
}
// just to see what one looks like
console.log(pAequor[0])
// two most related
let mostRelatedPercent = 0;
let mostRelatedSpec1 = 0;
let mostRelatedSpec2 = 0;
for (let i = 0; i < 30; i++) {
  for (let j = 0; j < 30; j++) {
     if (i !== j) {
       if (pAequor[i].compareDNA(pAequor[j]) > mostRelatedPercent) {
         mostRelatedPercent = pAequor[i].compareDNA(pAequor[j]);
         mostRelatedSpec1 = pAequor[i].specimenNum;
         mostRelatedSpec2 = pAequor[j].specimenNum;
       }
      } else { continue; }
  }
}
console.log(`Specimen #${mostRelatedSpec1} and #${mostRelatedSpec2} are the most identical with ${mostRelatedPercent}%.`)