Innovenergy_trunk/frontend/node_modules/fp-ts/es6/Json.js

50 lines
1.4 KiB
JavaScript

/**
* @since 2.10.0
*/
import { tryCatch } from './Either';
import { identity } from './function';
/**
* Converts a JavaScript Object Notation (JSON) string into a `Json` type.
*
* @example
* import * as J from 'fp-ts/Json'
* import * as E from 'fp-ts/Either'
* import { pipe } from 'fp-ts/function'
*
* assert.deepStrictEqual(pipe('{"a":1}', J.parse), E.right({ a: 1 }))
* assert.deepStrictEqual(pipe('{"a":}', J.parse), E.left(new SyntaxError('Unexpected token } in JSON at position 5')))
*
* @since 2.10.0
*/
export var parse = function (s) { return tryCatch(function () { return JSON.parse(s); }, identity); };
/**
* Converts a JavaScript value to a JavaScript Object Notation (JSON) string.
*
* @example
* import * as E from 'fp-ts/Either'
* import * as J from 'fp-ts/Json'
* import { pipe } from 'fp-ts/function'
*
* assert.deepStrictEqual(J.stringify({ a: 1 }), E.right('{"a":1}'))
* const circular: any = { ref: null }
* circular.ref = circular
* assert.deepStrictEqual(
* pipe(
* J.stringify(circular),
* E.mapLeft(e => e instanceof Error && e.message.includes('Converting circular structure to JSON'))
* ),
* E.left(true)
* )
*
* @since 2.10.0
*/
export var stringify = function (a) {
return tryCatch(function () {
var s = JSON.stringify(a);
if (typeof s !== 'string') {
throw new Error('Converting unsupported structure to JSON');
}
return s;
}, identity);
};