Javascript 按特定属性筛选和设置数组

您好，我有以下JavaScript对象数组：

  runners = [
      { id: 1, first_name: "Charmain", last_name: "Seiler", email: "cseiler0@wired.com", shirt_size: "2XL", company_name: "Divanoodle", donation: 75 },
      { id: 2, first_name: "Whitaker", last_name: "Ierland", email: "wierland1@angelfire.com", shirt_size: "2XL", company_name: "Wordtune", donation: 148 },
      { id: 3, first_name: "Julieta", last_name: "McCloid", email: "jmccloid2@yahoo.com", shirt_size: "S", company_name: "Riffpedia", donation: 171 },
      { id: 4, first_name: "Martynne", last_name: "Paye", email: "mpaye3@sciencedaily.com", shirt_size: "XL", company_name: "Wordware", donation: 288 },
      { id: 5, first_name: "Gussy", last_name: "Raraty", email: "graraty4@ucoz.ru", shirt_size: "L", company_name: "Oozz", donation: 291 },
  ]; 

我正在努力解决以下挑战，我真的不知道我做错了什么。 如果有人能帮忙，这就是我写的，我知道这是不正确的，但我不知道为什么

 /**
     * ### Challenge `getRunnersByTShirtSize`
     * 
     * @instructions
     * The event director needs a way to find the runners that need
     * a specific t-shirt size, so they can place the orders easily.
     * Implement this function using filter().
     * 
     * @param runners array of runners like the one inside the /data/runners.js file.
     * @param tShirtSize string (possible values are "S", "M", "L", "XL", "2XL", "3XL").
     * @returns an array containing only the runners that use the given `tShirtSize`.
     * The runners in the array appear in the same order they appear in the `runners` array.
    */
    function getRunnersByTShirtSize(runners, tShirtSize) {
      /* CODE HERE */
      const newSize =  runners.filter((size) => {
        return runners.size == tShirtSize;  
      });
      return newSize;
    }

它应该是runner.shirt\u尺码，而不是runner.size 您应该引用在函数filterrunner中传递的项

---

与T恤尺寸相关的对象中的键是什么大小不是shirt\u size。@t与tShirtSize相关的键是shirt\u size。为什么要将tShirtSize与数组大小进行比较？所以这是一个输入错误。请检查我的更新答案，您不应该引用过滤器中的跑步者

function getRunnersByTShirtSize(runners, tShirtSize) {
      /* CODE HERE */
      const newSize =  runners.filter((runner) => {
        return runner.shirt_size == tShirtSize;   //<===== not runners.size but instead shirt_size
      });
      return newSize;
    }

function getRunnersByTShirtSize(runners, tShirtSize) {
     return runners.filter(runners=> runners.shirt_size == tShirtSize);
 }