omnibelt/json-parse-safe.js

  1. const pipe = require('ramda/src/pipe');
  3. const list = require('./list');
  4. const tryCatchSafe = require('./try-catch-safe');
  6. /**
  7.  * A safe version of `JSON.parse` that returns an [error, result] tuple instead
  8.  * of throwing an error.
  9.  *
  10.  * @signature * -> Array<?SyntaxError, *>
  11.  *
  12.  * @example
  13.  *   const [error, result] = jsonParseSafe('{ "foo": "bar" }'); // => [null, { foo: 'bar' }]
  14.  *   const [error, result] = jsonParseSafe('{'); // => [SyntaxError, null]
  15.  */
  16. const jsonParseSafe = pipe(
  17.   list,
  18.   tryCatchSafe(JSON.parse)
  19. );
  21. module.exports = jsonParseSafe;