JavaScript通过值对数组进行排序并显示在HTML表中

Question

So, I have this list and I need to sort them after a certain brand of car. For example, Audi. And display them in an HTML table, one column with names and the other one with vehicles owned, the first ones being the Audi vehicle owners and then the others. How can I do that?

const people = [
  { name: "Ana", cars: "Audi" },
  { name: "Victoria", cars: ["Audi", "BMW"] },
  { name: "Grace", cars: ["Volkwagen", "Audi"] },
  { name: "Dan", cars: ["Opel", "Volkswagen"] },
  { name: "Josh", cars: ["Opel"] },
  { name: "John", cars: ["BMW", "Jaguar"] },
  { name: "Damon", cars: ["Renault", "Mercedes", "Audi"] },
];

Thank you!

Answer 1

Using reduce() you could group the car's owners.

 const people = [ { name: "Ana", cars: ["Audi"] }, { name: "Victoria", cars: ["Audi", "BMW"] }, { name: "Grace", cars: ["Volkswagen", "Audi"] }, { name: "Dan", cars: ["Opel", "Volkswagen"] }, { name: "Josh", cars: ["Opel"] }, { name: "John", cars: ["BMW", "Jaguar"] }, { name: "Damon", cars: ["Renault", "Mercedes", "Audi"] } ]; var brands = people.reduce((acc, o) => { o.cars.forEach(c => { if (!(c in acc)) acc[c] = []; acc[c].push(o.name); }); return acc; }, {}); var cont = document.getElementById("brands"); for (let b in brands) { var brand = document.createElement("p"); brand.innerHTML = "<b>" + b + "</b>: " + brands[b].join(" "); cont.appendChild(brand); } //console.log(brands); 

 <p>Brands and owners</p> <div id="brands"> </div>