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parse-json

5.0.0 • Public • Published

parse-json Build Status

Parse JSON with more helpful errors

Install

$ npm install parse-json

Usage

const parseJson = require('parse-json');
 
const json = '{\n\t"foo": true,\n}';
 
 
JSON.parse(json);
/*
undefined:3
}
^
SyntaxError: Unexpected token }
*/
 
 
parseJson(json);
/*
JSONError: Unexpected token } in JSON at position 16 while parsing near '{      "foo": true,}'
 
  1 | {
  2 |   "foo": true,
> 3 | }
    | ^
*/
 
 
parseJson(json, 'foo.json');
/*
JSONError: Unexpected token } in JSON at position 16 while parsing near '{      "foo": true,}' in foo.json
 
  1 | {
  2 |   "foo": true,
> 3 | }
    | ^
*/
 
 
// You can also add the filename at a later point
try {
    parseJson(json);
} catch (error) {
    error.fileName = 'foo.json';
    throw error;
}
/*
JSONError: Unexpected token } in JSON at position 16 while parsing near '{      "foo": true,}' in foo.json
 
  1 | {
  2 |   "foo": true,
> 3 | }
    | ^
*/

API

parseJson(string, reviver?, filename?)

string

Type: string

reviver

Type: Function

Prescribes how the value originally produced by parsing is transformed, before being returned. See JSON.parse docs for more.

filename

Type: string

Filename displayed in the error message.


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install

npm i parse-json

Downloadsweekly downloads

18,424,628

version

5.0.0

license

MIT

homepage

github.com

repository

Gitgithub

last publish

collaborators

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