determine location in a array

Question

Im trying to determine the location of a in a array. Im not really sure how to handle this case

const expect = require('chai').expect;
const answers = require('../src/arrays');

describe('arrays', function() {
    let a;

    beforeEach(function() {
        a = [ 1, 2, 3, 4 ];
    });

    it('expect determine location of a in array', function(expect) {
        expect(answers.indexOf(a, 3)).to.eql(2);
        expect(answers.indexOf(a, 5)).to.eql(-1);

    });

I’m pretty sure “A” must be an element in “answers”? Your usage here is unclear. What is answers? Why are you looking for an array in “answers”? Is that what you meant to look for? — evolutionxbox, Oct 22 '19 at 07:23
I have added both simple (*array of numbers*) and complex (*array of objects*) link as dupe. Please do refer both for more clarity — Rajesh, Oct 22 '19 at 07:27

score 0 · Answer 1 · answered Oct 22 '19 at 07:23

0

Try this!

var array = [ 1, 2, 3, 4 ]; 
   
function finding_index(element) { 
  return element === 2; 
} 
  
console.log(array.findIndex(finding_index));

answered Oct 22 '19 at 07:23

Yahiya

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Whilst this is helpful, the question is unclear. – evolutionxbox Oct 22 '19 at 07:25

determine location in a array

1 Answers1