在javascript中,从数组中删除“坏”值的最有效方法是什么?[复制]

我想弄清楚哪种方式是最好的,就性能而言。

考虑到以下问题:;

您有一个数字数组,另一个数组包含要从第一个数组中删除的数字。

https://codepen.io/bluebrown/pen/VRGgpm

let dataArray = [2,4,5,8,1,9,3];
let blackList = [3,5,8,7];

function findFaulty(data, bad) {
  if (bad.length > 0) {
    let cleanData = [];
    data.forEach(item => {
      let x = 0;
      bad.forEach(b => {
        if (b === item) return;
        x++;
        if (x >= bad.length) cleanData.push(item);
      });
    });
    return cleanData;  
  }
  return data;
};

console.log(findFaulty(dataArray, blackList));

然后: https://codepen.io/bluebrown/pen/GeXwBL?editors=0012

let dataArray = [2, 4, 5, 8, 1, 9, 3];
let blackList = [2, 3];

function filterData(data, bad) {
    bad.forEach((b, i, a) => a[i] = data.indexOf(b));
    bad.filter(x => x > -1).forEach((b, i) => data.splice(b, 1, -1));
    return data.filter(d => d > -1)
};

console.log(filterData(dataArray, blackList));

最后: https://codepen.io/bluebrown/pen/EMdyVg

let data = [2, 4, 5, 8, 1, 9, 3];
let faulty = [2, 1, 5, 6];

let clean = data.filter(d => faulty.indexOf(d) < 0 );

console.log(clean);