Javascript use variable as object(array) name

Question

I want to use the value of a variable to access an object of array.

I want to fill a variable with this name and use the variable to access the object.

var data = [
    {lat_P: 37.4419, lon_P: -122.1419, title: 'location 1'},
    {lat_T: 37.4419, lon_T: -122.1419, title: 'location 2'},
   ]

Example:

let type = "T";
let geometry = "lat_" + type;
console.log(data[x].[geometry]);

@Archer — No, it isn't. `SyntaxError: Unexpected token [` – Quentin Jul 16 '18 at 12:04 — Quentin, Jul 16 '18 at 12:04
Yeah, my bad. The dot is wrong. – Reinstate Monica Cellio Jul 16 '18 at 12:04 — Reinstate Monica Cellio, Jul 16 '18 at 12:04

score 1 · Accepted Answer · answered Jul 16 '18 at 12:04

You are using data[x].[geometry]. you should use data[x][geometry]

var data = [
    {lat_P: 37.4419, lon_P: -122.1419, title: 'location 1'},
    {lat_T: 37.4419, lon_T: -122.1419, title: 'location 2'},
   ]
let type = "T";
let geometry = "lat_" + type;
console.log(data[1][geometry]);

Javascript use variable as object(array) name

1 Answers1