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in Technique[技术] by (71.8m points)

js怎么判断两数组之间有没有交集

有两个数组:数组1和数组2;
想实现的需求:判断数组2里有没有数组1的任意一项,有则true,无则false

let arr1 = [1,2,3,4,5,6];
let arr2 = [6,7,8,9,10,11];
let result = false;
for(item of arr1){
    if(arr2.includes(item)){
        result = true;
        break;
    }
}

有没有大佬有更好的写法


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1 Answer

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var arr1 = [1,2,3,4,5,6];
var arr2 = [6,7,8,9,10,11];
var result = (arr1.length + arr2.length) !== Array.from(new Set([...arr1,...arr2])).length;


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