let arr = ['q', 'w', 'e', 'r', 't', 'y'];let aaa = ['q', 'y'];arr = arr.filter(item => !aaa.some(aaaItem => aaaItem === item));console.log(arr)  //["w", "e", "r", "t"]

let a = [{name:'gaojiarui',age:'18',id:'1231'},{name:'gjr',age:'16',id:'1324'},{namg:'gqjr',age:'17',id:'1234'}];let b = [{name:'gjr',id:'1324'},{name:'gqjr',id:'1234'}]a = a.filter(item => !b.some(aa => aa.id === item.id))console.log(a);  //[{name: "gaojiarui", age: "18", id: "1231"}]