How to call value from JSON file?

Question

JavaScript

I created a json file, put the values ​​I needed in it in this way:

{ "regions" : [
      "hongkong",
      "us-central", 
      "amsterdam", 
      "us-south", 
      "russia", 
      "us-east", 
      "south-korea", 
      "london", 
      "southafrica", 
      "europe", 
      "japan", 
      "eu-west", 
      "singapore", 
      "dubai", 
      "brazil", 
      "india", 
      "sydney", 
     "frankfurt", 
      "us-west"
    ] }

I need to call for example the value "frankfurt", and display it via alert()
How to do it?
Thanks in advance to everyone for the replies.

Answer 1

const config = require("./config.json");

alert(config['regions'][17])

Answer 2

const config = JSON.parse('ваш json');
const ind = config.regions.indexOf('frankfurt');
console.log(config.regions[ind]);

Answer 3

For this task, json is not needed, it is better to use a regular object. But if you really want to (why?), then
https://stackoverflow.com/questions/19706046/how-t...
https://stackoverflow.com/questions/34944099/how-t...