parse-json

import parseJson, {JSONError} from 'parse-json';
const json = '{\n\t"foo": true,\n}';
JSON.parse(json);
SyntaxError: Expected double-quoted property name in JSON at position 16 (line 3 column 1)
parseJson(json);
JSONError: Expected double-quoted property name in JSON at position 16 (line 3 column 1)
  1 | {
  2 |   "foo": true,
> 3 | }
parseJson(json, 'foo.json');
JSONError: Expected double-quoted property name in JSON at position 16 (line 3 column 1) in foo.json
  1 | {
  2 |   "foo": true,
> 3 | }
  fileName: 'foo.json',
  [cause]: SyntaxError: Expected double-quoted property name in JSON at position 16 (line 3 column 1)
      at JSON.parse (<anonymous>)
      at ...
// You can also add the filename at a later point
try {
	parseJson(json);
} catch (error) {
	if (error instanceof JSONError) {
		error.fileName = 'foo.json';
	throw error;
JSONError: Expected double-quoted property name in JSON at position 16 (line 3 column 1) in foo.json
  1 | {
  2 |   "foo": true,
> 3 | }
  fileName: 'foo.json',
  [cause]: SyntaxError: Expected double-quoted property name in JSON at position 16 (line 3 column 1)
      at JSON.parse (<anonymous>)
      at ...
parseJson(string, reviver?, filename?)

Throws a JSONError when there is a parsing error.
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
The filename displayed in the error message.
JSONError

Exposed for instanceof checking.
fileName

Type: string
The filename displayed in the error message.
codeFrame

Type: string
The printable section of the JSON which produces the error.
rawCodeFrame

Type: string
The raw version of codeFrame without colors.