jQuery检查两个数组是否至少具有一个公共元素 [英] JQuery check if two arrays have at least one common element

问题描述

我想用JQuery检查两个数组是否至少有一个公共元素并返回true.以下行无法按我的意愿工作:

I want to check with JQuery if two arrays have at least one common element and return true. Following line does not work as I want:

 if(jQuery.inArray(array1,array2) > -1) {return true;}

您能帮我找到解决方法吗?

Could you please help me to find the solution.

推荐答案

一种方法是循环遍历一个数组，并为第二个数组使用$ .inArray.

One way to do this is to loop through one array and use $.inArray for the second array..

function hasCommonElement(arr1,arr2)
{
   var bExists = false;
   $.each(arr2, function(index, value){

     if($.inArray(value,arr1)!=-1){
        console.log(value);
        bExists = true;
     }

     if(bExists){
         return false;  //break
     }
   });
   return bExists;
}

jSfiddle

现在我们可以检查

if(hasCommonElement(arr1,arr2)){
    return true;
}

希望会有更好的答案...

Hopefully there would be a better answer...

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