Unpack array values

Asked Feb 19 '20 at 13:04

Active Feb 19 '20 at 13:04

Viewed 25 times

I have the following code:

let filters = []
this.query.split(" ").forEach(function(word){
    // ...
    filters.push(value)
}

this.push('filters', DOUBT);

In Polymer, I can do this.push('filters', value1, value2, value3) in order to push three values to an array property at the same time. The problem is that I don't know how many words the user query would be composed by.

I can't do this.push('filters', value) for each word of my query because my filters property has an observer and I don't want the function to be launched multiple times. Finally, I neither can do this.push('filters', filters) since this will save an array inside an array.

Is there any function in JavaScript which unpacks an array and gives all its elements? I'm looking for something similar to this.push('filters', filters*)

asked Feb 19 '20 at 13:04

Luiscri

what is `value` – brk Feb 19 '20 at 13:06
3

Use the spread syntax: `this.push('filters', ...filters)`. – trincot Feb 19 '20 at 13:07
Its a dictionary @brk – Luiscri Feb 19 '20 at 13:07
1

like trincot suggestion, look at the spread operator; https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_syntax – keja Feb 19 '20 at 13:07
1

That was exactly what I was asking for, but I didn't know the name of the operator to search it. Thank you very much @trincot – Luiscri Feb 19 '20 at 13:25

Unpack array values

0 Answers0