Guide on parsing a JSON document using Javascript

Question

Guide on parsing a JSON document using Javascript

In my possession is a JSON file with the following data:

[
  {
    “name”: “Joshia \”Placement\” Fonz”,
    “color”: “white”
  },
  {
    "name": “Trin Brin”,
    “color”: “black”
  },
  {
    “name”: “Su Et”,
    “color”: “yellow”
  }
]

I am looking to extract and utilize the array and objects within this file for my application. With './students.json' as the file path, I first tried using JSON.parse('./students.json'). Unfortunately, this resulted in an error message stating:

Uncaught SyntaxError: Unexpected token . in JSON at position 0

. Subsequently, I attempted

JSON.stringify('./students.json')

, only to receive the original string of the path './students.json'.

Could you please advise on how I can successfully parse this JSON file in Javascript to access the array?

Thank you.

javascript arrays json parsing

Answer 1

Answer №1

The reason for the issue is that you are currently parsing the string './students.json' instead of the actual contents of the file. To resolve this, you need to open the file and extract the information from it. An example code snippet for reading the file can be found at this link. Once you have read the file, use JSON.parse to convert the content into a usable format.

Answer 2

The reason for the issue is that you are currently parsing the string './students.json' instead of the actual contents of the file. To resolve this, you need to open the file and extract the information from it. An example code snippet for reading the file can be found at this link. Once you have read the file, use JSON.parse to convert the content into a usable format.

Answer 3

Answer №2

To achieve your goal, it is recommended to utilize an ajax request with the help of jQuery ($), which offers a simplified way to work with XHR.

$.get("./students.json", function(data){
   //success callback
   // data is the json you requested already parsed
}, "json");

This method is considered the fastest approach as opposed to relying on client-side file reading capabilities such as the File API, which may introduce more complexities than solutions.

File

FileReader

Answer 4

To achieve your goal, it is recommended to utilize an ajax request with the help of jQuery ($), which offers a simplified way to work with XHR.

$.get("./students.json", function(data){
   //success callback
   // data is the json you requested already parsed
}, "json");

This method is considered the fastest approach as opposed to relying on client-side file reading capabilities such as the File API, which may introduce more complexities than solutions.

File

FileReader

Answer 5

Answer №3

JSON is considered a valid JavaScript, allowing you to easily incorporate it into your webpage:

<script language="JavaScript" type="text/javascript" src="./students.json"></script>

Answer 6

JSON is considered a valid JavaScript, allowing you to easily incorporate it into your webpage:

<script language="JavaScript" type="text/javascript" src="./students.json"></script>

Guide on parsing a JSON document using Javascript

Answer №1

Answer №2

Answer №3

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