CODEWITHSUNDEEP
javascriptjqueryfiltering
LeBlaireau
LeBlaireau

Reputation: 17467

Filtering array

I have an array of people objects (20 in all) from a json file

{
      "id": "1",
      "departments": "1",
      "name": "Jim Smith",

},

I want to filter ids 1, 5, and 10

let values = [1,5,10];

let filtered =this.people.filter(function(person) {
    return values.some(function(val) { return person.id === val });
})


console.log(filtered);

I keep getting a blank value in filtered, where am I going wrong? It looks close.

Upvotes: 0

Views: 41

Answers (2)

Sam He
Sam He

Reputation: 3

It's because the value is integer, while the persion.id is String.

you can use 

return person.id === val.toString()

or 

return person.id == val

And I prefer:

let filtered2 = this.people.filter(function(person) {
  return person.id in values;
})
console.log(filtered2);

Upvotes: 0

Adam Jenkins
Adam Jenkins

Reputation: 55623

Loose typing rules:

"1" == 1
"1" !== 1

Changing your === to a == is one way to fix it.

Upvotes: 2

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