javascript - Angular 如何检查2个数组中的重叠值？

我想检查2个数组中的重叠值

方案1：

cuisineA = [a,b,c];
cuisineB = [a,b,c,d,e,f];

将返回一个布尔值isOverlap = true

方案2：

cuisineA = [a,b,c];
cuisineB = [d,e,f];

会给我一个布尔值isOverlap = false

目前我的代码看起来像这样

const overlapCuisines = this.cuisineA.filter(
      cuisine => this.cuisineB.indexOf(cuisine) < 0
    );
this.isOverlap = overlapCuisines.length > 0;

但是，在方案2中时，overlapCuisines将包含值[a，b，c]，因此当isOverlap = true时应为false。如何编码才能正确显示？感谢您的帮助！

最佳答案

如果项目的顺序不重要，则可以使用Array.some()方法。

var cuisineA = ["a","b","c"];
var cuisineB = ["a","b","c","d","e","f"];

var isOverlap = cuisineA.some(value => cuisineB.includes(value));

console.log(isOverlap);


cuisineA = ["a","b","c"];
cuisineB = ["d","e","f"];

isOverlap = cuisineA.some(value => cuisineB.includes(value));

console.log(isOverlap);

关于javascript - Angular 如何检查2个数组中的重叠值？，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/58109367/