[
{
"dataset_id": "courses",
"dept": "phys",
"id": "301",
"avg": 71.67,
"instructor": "bryman, douglas",
"title": "elec & magnetism",
"pass": 146,
"fail": 6,
"audit": 0,
"uuid": 441,
"year": "2015"
},
{
"dataset_id": "courses",
"dept": "phys",
"id": "301",
"avg": 71.67,
"instructor": "",
"title": "elec & magnetism",
"pass": 146,
"fail": 6,
"audit": 0,
"uuid": 442,
"year": "2015"
},
{
"dataset_id": "courses",
"dept": "phys",
"id": "301",
"avg": 73.07,
"instructor": "louis-martinez, domingo",
"title": "elec & magnetism",
"pass": 113,
"fail": 4,
"audit": 0,
"uuid": 5957,
"year": "2013"
}
]
Here is my JSON file and I intend to get a number of elements which is suppose to be 3. I tried to use:
let num = JSON.parse(file).result.length;
I got a result of Syntax error says "Unexpected token c in JSON at position 0". What did I do wrong?
You'll need to provide a bit more context on how you're getting "file". Is it from an ajax request, is it a static file in your project directory, etc.?
However, since you're using typescript im wagering it is a static file (client or server side shouldnt matter).
You'll probably need to just export it correctly. Add export const variableName = [...] and then you should be able to import it in any file via import file from './filepath'. You shouldnt need to JSON.parse() it.