Credit card checker was overide by mysterious_organism and is now back to normal
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gauvainboiche
@@ -1,101 +1,80 @@
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// Returns a random DNA base
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function 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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// All valid credit card numbers
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const valid1 = [4, 5, 3, 9, 6, 7, 7, 9, 0, 8, 0, 1, 6, 8, 0, 8];
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const valid2 = [5, 5, 3, 5, 7, 6, 6, 7, 6, 8, 7, 5, 1, 4, 3, 9];
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const valid3 = [3, 7, 1, 6, 1, 2, 0, 1, 9, 9, 8, 5, 2, 3, 6];
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const valid4 = [6, 0, 1, 1, 1, 4, 4, 3, 4, 0, 6, 8, 2, 9, 0, 5];
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const valid5 = [4, 5, 3, 9, 4, 0, 4, 9, 6, 7, 8, 6, 9, 6, 6, 6];
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// All invalid credit card numbers
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const invalid1 = [4, 5, 3, 2, 7, 7, 8, 7, 7, 1, 0, 9, 1, 7, 9, 5];
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const invalid2 = [5, 7, 9, 5, 5, 9, 3, 3, 9, 2, 1, 3, 4, 6, 4, 3];
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const invalid3 = [3, 7, 5, 7, 9, 6, 0, 8, 4, 4, 5, 9, 9, 1, 4];
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const invalid4 = [6, 0, 1, 1, 1, 2, 7, 9, 6, 1, 7, 7, 7, 9, 3, 5];
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const invalid5 = [5, 3, 8, 2, 0, 1, 9, 7, 7, 2, 8, 8, 3, 8, 5, 4];
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// Can be either valid or invalid
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const mystery1 = [3, 4, 4, 8, 0, 1, 9, 6, 8, 3, 0, 5, 4, 1, 4];
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const mystery2 = [5, 4, 6, 6, 1, 0, 0, 8, 6, 1, 6, 2, 0, 2, 3, 9];
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const mystery3 = [6, 0, 1, 1, 3, 7, 7, 0, 2, 0, 9, 6, 2, 6, 5, 6, 2, 0, 3];
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const mystery4 = [4, 9, 2, 9, 8, 7, 7, 1, 6, 9, 2, 1, 7, 0, 9, 3];
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const mystery5 = [4, 9, 1, 3, 5, 4, 0, 4, 6, 3, 0, 7, 2, 5, 2, 3];
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// An array of all the arrays above
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const batch = [valid1, valid2, valid3, valid4, valid5, invalid1, invalid2, invalid3, invalid4, invalid5, mystery1, mystery2, mystery3, mystery4, mystery5];
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// Add your functions below:
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function validateCred(array) {
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let newArray = [];
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let cardIssuer = "";
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switch (array[0]) {
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case 3 :
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cardIssuer = "American Express";
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break;
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case 4 :
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cardIssuer = "Visa";
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break;
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case 5 :
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cardIssuer = "Mastercard";
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break;
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case 6 :
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cardIssuer = "Discover";
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break;
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default :
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cardIssuer = "[UNKNOWN]";
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break;
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}
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for (let i = array.length - 1; i >= 0; i--) {
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let currentPlace = array[i];
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// to see if the [i] is an even number in the array - so that the 2nd, 4th, 6th element of the array etc - and if so => Double the number
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if (i % 2 !== 0) {
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newArray.push(currentPlace);
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continue;
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}
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// if the double of the number is superior to 9, take the sum of the two numbers. Which is equivalent to substracting 9 to it curriously
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if (currentPlace * 2 > 9) {
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let twoNum = currentPlace * 2 - 9;
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newArray.push(twoNum);
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} else {
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newArray.push(currentPlace * 2);
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}
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// add all the numbers
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}
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const sumUp = newArray.reduce((accumulator, currentValue) => accumulator + currentValue);
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const isValid = sumUp % 10 === 0;
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const cardID = `${array.at(0)}${array.at(1)}${array.at(2)}X-XXXX-XXXX-X${array.at(-3)}${array.at(-2)}${array.at(-1)}`;
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console.log(`The credit card ${cardID} is issued by ${cardIssuer}.
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It is ${isValid ? "a VALID" : "an INVALID"} credit card.
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----------`);
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return isValid;
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}
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// Returns a random single strand of DNA containing 15 bases
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function 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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function findInvalidCards(nestedArray) {
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for (const array of nestedArray) {
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validateCred(array);
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}
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return newStrand;
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}
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// Factory function to create a DNA specimen object
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function pAequorFactory(specimenNumber, dnaArray) {
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if (dnaArray.length !== 15) throw new Error('DNA array must be 15 bases long');
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return {
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_specimenNum: specimenNumber,
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_dna: dnaArray,
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get dna() {
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return this._dna;
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},
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get specimenNum() {
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return this._specimenNum;
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},
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mutate() {
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const dnaBases = ['A', 'T', 'C', 'G'];
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let indexToMutate = Math.floor(Math.random() * this._dna.length);
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const currentBase = this._dna[indexToMutate];
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// Filter out the current base to select a different one
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const otherBases = dnaBases.filter(base => base !== currentBase);
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const newBase = otherBases[Math.floor(Math.random() * otherBases.length)];
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// Update DNA at the selected index
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this._dna[indexToMutate] = newBase;
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return this._dna;
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},
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compareDNA(secondDNA) {
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let DNAsimilarities = 0;
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for (let i = 0; i < this._dna.length; i++) {
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if (this._dna[i] === secondDNA.dna[i]) {
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DNAsimilarities++;
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}
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}
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const commonDNA = DNAsimilarities / this._dna.length * 100; // the *100 is to calculate %age
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return(`The two DNA threads of specimens numbers ${this._specimenNum} and ${secondDNA.specimenNum} are ${commonDNA.toFixed(2)}% similar.`);
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},
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willLikelySurvive() {
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let survivalChances = 0;
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for (let i = 0; i < this._dna.length; i++) {
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if (this._dna[i] === "G" || this._dna[i] === "C") {
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survivalChances++;
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}
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}
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const totalChances = survivalChances / this._dna.length * 100; // the *100 is to calculate %age
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const willSurvive = totalChances >= 60;
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//console.log(`The specimen #${this._specimenNum} has a DNA composed at ${totalChances}% of C and G bases and thus will likely ${willSurvive ? "survive" : "not survive"}.`);
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return willSurvive;
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}
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};
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}
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function pAequorLaboratory(number) {
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let pAequorLab = [];
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let i = 0;
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while (i < number) {
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let pAequor = mockUpStrand();
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let pAequorSpecimen = pAequorFactory(i+1, pAequor);
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if (pAequorSpecimen.willLikelySurvive()) {
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pAequorLab.push(pAequorSpecimen);
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i++;
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}
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}
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return pAequorLab;
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}
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const pAequor1DNA = mockUpStrand();
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const pAequor2DNA = mockUpStrand();
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const pAequor1 = pAequorFactory(1, pAequor1DNA);
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const pAequor2 = pAequorFactory(2, pAequor2DNA);
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console.log(`
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${pAequor1.dna}
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${pAequor2.dna}`);
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console.log(pAequor1.compareDNA(pAequor2));
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pAequor1.willLikelySurvive();
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const pAequorLab1 = pAequorLaboratory(30);
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console.log(pAequorLab1.map(p => p.dna));
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findInvalidCards(batch);
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