Define JSON as writeable: 'Error not caught'

I'm facing an issue with a read/write error in my JavaScript code because the JSON file seems to be set as read-only ('Uncaught TypeError: Cannot assign to read only property'). How can I change it to writable? Should I make changes in the JavaScript or in the JSON itself?

Here is a snippet of my JSON array (Should 'writable: true' be added here?):

{ "lots" : [
{
    "name" : "NW Corner of HW30 & 54th",
    "info" : "$2/Hr<br>Monthly Parking Available",
    "center" : {
        "lat" : 57.659390,
        "lng" : -127.414754
    },
    "topLeft" : {
        "lat" : 57.659616,
        "lng" : -127.415102
    },
    "bottomRight" : {
        "lat" :57.659208,
        "lng" :-127.414371
    }
}...etc
]}

Here's the Ajax call I'm making (Is it possible to specify 'writable' using Object.defineProperty() here?):

var jsonFile = $.ajax({
  type: "GET",
  url: "filepath/filename.json",
  dataType: "json",
  success: function(response) {
    console.log(response);
  }
});

Do I need to declare this elsewhere, or am I missing something else entirely?

Thank you for any assistance provided.

javascriptjsonobjectwritable

Answer №1

To make a property writable, you need to explicitly specify writable: true. By default, it is set to false :)

For example:

"topLeft" : {
        "lat" : 57.659616,
        "lng" : -127.415102,
         writable:true
    }

The writable attribute determines whether the value associated with the property can be changed using an assignment operator. It defaults to false.

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