how to findIndex of

Question

I'm wondering how to get the findindex of a specific service_name in the below array?

var obj = {"ID":111222,"NAME":"Chicken","FREQUENCY":"Yearly","service_name":["Open ticket","Service Account time","Assets Management Overview"]}

I have tried the following but not getting the correct index

var find_index = obj.service_name.findIndex(function(obj){return obj.service_name = "Open ticket"})
console.log ("The index of " + find_index);

https://www.w3schools.com/jsref/jsref_indexof_array.asp might be what you are looking for. — Viliam Aboši, Apr 11 '17 at 13:45
@ExplosionPills: Why did you re-open this? This is an obvious dupe. Also, typo's have their own close reason. — Cerbrus, Apr 11 '17 at 13:49
@Cerbrus You can use `indexOf`, but [`findIndex`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/findIndex) is a valid array method. He is properly calling `.findIndex` on the array as in `obj.service_name.findIndex`. There are a couple of other issues with his code, but he has a valid attempt here -- hence the question. — Explosion Pills, Apr 11 '17 at 13:49

Explosion Pills · Accepted Answer · 2017-04-11T13:51:41.367

-1

Your code is close, but there are a couple of semantic issues. You're already iterating over the service_name array so the argument that the .findIndex callback takes is the array element / string itself. You also need to use == or === for comparison. Right now you are performing assignment.

const find_index = obj.service_name.findIndex(
  serviceName => "Open ticket" === serviceName
);

In this case you can also use .indexOf which would be a bit simpler:

const index = obj.service_name.indexOf("Open ticket");

edited Apr 11 '17 at 13:51

answered Apr 11 '17 at 13:46

Explosion Pills

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Thanks @Explosion Pills I ended up using the `indexOf` approach. – user3292394 Apr 11 '17 at 14:03

how to findIndex of

1 Answers1