javascript - 与多层数组匹配字符串

Question

如何将变量 car 与变量数组匹配？我需要将每个第一个项目(别克、梅赛德斯、雪佛兰)与我的字符串相匹配。我这种情况应该记录别克和雪佛兰:

var car = "Buick, Chevrolet";
var array = [
  ["Buick", "2012", "USA", "1201"],
  ["Mercedes", "2005", "Germany", "12354"],
  ["Chevrolet", "1974", "USA", "9401"]
];


if (car = array) {
  console.log("Buick and Chevrolet matches.");  
};

但字符串可能不同 - 有时可能匹配项目 0，有时可能匹配 30 等等。

Answer 1

在现代 Javascript 中，您可以使用 Set 和 .filter 来实现此目的:

var car = "Buick, Chevrolet";
var array = [
  ["Buick", "2012", "USA", "1201"],
  ["Mercedes", "2005", "Germany", "12354"],
  ["Chevrolet", "1974", "USA", "9401"]
];

var searchCars = new Set(car.match(/\w+/g));
var found = array.filter(([name]) => searchCars.has(name));

console.log(found);