javascript - How to find single matching value in two arrays in js -


i have 2 arrays.

 var = ["a","b","c","d"];  var b = ["c","d","f","k"];

these 2 arrays.now need check single matching values in 2 arrays.it should break after finding single match value.

my expect result c , d matches.

you can use array#find iterate 1 of arrays, , array#indexof or array#includes find if item exists in 2nd array:

var = ["a", "b", "c", "d"];  var b = ["c", "d", "f", "k"];    function findmatch(arr1, arr2) {    return arr1.find(function(item) {      return arr2.indexof(item) === -1;    });  }    var result = findmatch(a, b);    console.log(result);

and fancy version arrow functions , consts:

const = ["a","b","c","d"];  const b = ["c","d","f","k"];    const findmatch = (arr1, arr2) => arr1.find((item) =>  arr2.includes(item));    const result = findmatch(a, b);    console.log(result);


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