75 lines
1.6 KiB
JavaScript
75 lines
1.6 KiB
JavaScript
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// Returns a random DNA base
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const returnRandBase = () => {
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const dnaBases = ['A', 'T', 'C', 'G']
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return dnaBases[Math.floor(Math.random() * 4)]
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}
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// Returns a random single stand of DNA containing 15 bases
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const mockUpStrand = () => {
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const newStrand = []
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for (let i = 0; i < 15; i++) {
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newStrand.push(returnRandBase())
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}
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return newStrand
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}
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const pAequorFactory = function (id, DNA) {
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return {
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specimenNum: id,
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dna: DNA,
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mutate() {
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const baseToChange = Math.floor(Math.random() * this.dna.length)
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let mutation
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do {
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mutation = returnRandBase()
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} while (mutation === this.dna[baseToChange])
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this.dna[baseToChange] = mutation
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},
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compareDNA(other) {
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let common = 0
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for (let i = 0; i < this.dna.length; i++) {
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if (this.dna[i] === other.dna[i]) {
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common++
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}
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}
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const percentage = (common / this.dna.length) * 100
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console.log(`Specimen #${this.specimenNum} and specimen` +
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` #${other.specimenNum} have ${percentage}% DNA in common`)
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},
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willLikelySurvive() {
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let goodBases = 0
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this.dna.forEach((base) => {
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if (base === 'C' || base === 'G') {
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goodBases++
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}
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})
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return (goodBases / this.dna.length) >= 0.6
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},
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}
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}
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let samples = []
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let id = 1
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while (samples.length < 30) {
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samples.push(pAequorFactory(id, mockUpStrand()))
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id++
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}
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samples.forEach((sample) => {
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while (!sample.willLikelySurvive()) {
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sample.mutate()
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}
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console.log(sample.specimenNum, sample.dna, sample.willLikelySurvive())
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})
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