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Eduardo Sebastian
Asked: 2020-10-03 01:48:39 +0800 CST 2020-10-03 01:48:39 +0800 CST

How to get the match found with includes?

  • 772

If in a Array, I look for an element with includes, instead of returning a boolean, how can I return the match, that is, what was the element found ?

var a = ["eeuu","usa"];
var b = "eeuu";
var c = a.includes(b);
console.log(c);

javascript

2 Answers

  1. Best Answer

    You can use indexOfinstead of includesto get the index of the searched element within the array:

    var a = ["eeuu","usa"];
var b = "eeuu";

// true/false indicando si existe
var includes = a.includes(b);
console.log(includes);

// índice del elemento buscado
var index = a.indexOf(b);
console.log(index);

    • 5

  2. You can use:

    var a = ["eeuu","usa"];
var b = "eeuu";

if(a.includes(b)){
   console.log(b)
}

    Complete code with a function:

     var a = ["eeuu","usa"];
    var b = "eeuu";

    function muestraCoincidencia(array,elementoBuscado){
        if(array.includes(b)) return b; 
    }

    var palabra_buscada = muestraCoincidencia(a, b);
    console.log(palabra_buscada);

    • 2