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Accepted
dima
Asked:2022-07-04 03:12:13 +0800 CST2022-07-04 03:12:13 +0800 CST

JavaScript 数组过滤器

  • 772

有2个数组：

let massive1 = ["1","2","3"];
let massive2 = ["1","2"];

有必要从数组 1 中删除数组 2 中的元素。我尝试这样做，但没有帮助：

massive1.filter((array1) => massive2.find((array2) => array2 !== array1));
javascript

1 个回答

  1. Best Answer

    let massive1 = ["1","2","3"];
let massive2 = ["1","2"];

let result = massive1.filter((elOfarr1) => !massive2.find((elOfarr2) => elOfarr2 == elOfarr1)); 
console.log(result);

//-------------
// Второй вариант 

result = massive1.filter(x => !massive2.includes(x));
console.log(result);

//-------------
// Третий вариант 

result = massive1.filter(i => massive2.indexOf(i) < 0);
console.log(result);

    • 4

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