How to transfer data from *.json file?

Question

JSON

Found the following:
Method JSON.parse
Calling JSON.parse(str) will turn a string with data in JSON format into a JavaScript object/array/value.
For example:

var numbers = "[0, 1, 2, 3]";

numbers = JSON.parse(numbers);

alert( numbers[1] ); // 1

Or like this:

var user = '{ "name": "Вася", "age": 35, "isAdmin": false, "friends": [0,1,2,3] }';

user = JSON.parse(user);

alert( user.friends[1] ); // 1

Data can be arbitrarily complex, objects and arrays can contain other objects and arrays. The main thing is that they match the format.
I generated my own json and tried by analogy with the example, nothing happened (the page stopped rendering).
In particular, here is a piece of code after adding which the page "breaks":

var tmp = '{"_id:", "data:", "program_id:", "total_seats:", "aveilable_seats:"}';
tmp = JSON.parse(generated.json);
alert (tmp);

It's not entirely clear to me how this method will understand where the json file is.
If this is important, then webpack is used for assembly.
I'm new to this, so any help would be greatly appreciated.
Thanks in advance.

Answer 1

webpack is used for assembly

Cool. Then just do everything, nothing else is needed, no JSON.parse - in data the contents of your file will already be in the form of an object.

Answer 2

This method simply parses a JSON string into a JSON object. To parse a file, you need to get its contents via GET and only then call this method on the returned data.