Array filter linq does not return expected result

Question

I'm trying to get existCount from an array, which has id in selected array.

But something went wrong, I had an item with id = 5493 but existCount.length = 0

My JS code:

Chrome Console view:

Where my fault?

How can I fix it?

Thanks!

Answer 1

The problem are the types of item.id and script.script_id, you're comparing numbers and strings.

item.id  script_id
  |         |
  v         v
5493 === "5493" -> false

console.log(5493 === "5493");

An alternative is converting to number the script_id

This approach uses the + to convert that string to number and make the correct comparison

console.log(5493 === +"5493");

This is an example to illustrate.

var array = [{id: 4110, name: "Ele"}, {id: 4091, name: "SO"}, {id: 5493, name: "Target"}];

var script_id = "5493";
var result = array.filter(e => e.id === +script_id);

console.log(result);

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