# parse-json > Parse JSON with more helpful errors ## Install ``` $ npm install parse-json ``` ## Usage ```js 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) { if (error instanceof parseJson.JSONError) { 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?) 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](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse#Using_the_reviver_parameter ) for more. #### filename Type: `string` Filename displayed in the error message. ### parseJson.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. ---

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c	File Name	Size	T	Date
-	index.js	1330	js	2026-04-22 12:53:57
-	license	1117	%	2026-04-22 12:53:57
-	package.json	825	json	2026-04-22 12:53:57
-	readme.md	2137	md	2026-04-22 12:53:57

🌲 / mnt pelican docker rootfs overlayfs 35e8d9b717682b72db2f62a2b1eeab1abbe9a93a29c3b59ec67ecc072a950e48 app node_modules parse-json

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