JSON Module

Import using: use json

json.parse(jsonString)

Parses a JSON formatted string and maps it into corresponding arrays or maps. Throws on format violations.

use json
let doc = '{ "user": "Riad", "scores": [98, 92, 100] }'
let obj = json.parse(doc)
print(obj["user"])        # Riad
print(str(obj["scores"])) # [98, 92, 100]

# Invalid JSON throws
let invalid = json.parse("{bad}")

json.stringify(data, replacer, space)

Serializes values into standard JSON format. Space specifies indentation (integer for spaces, or boolean).

use json
let data = {"name": "Djazair", "version": 1.0}
let str = json.stringify(data, Null, True)
print(str)

json.pretty(data)

Serializes data with neat layout formatting (alias for stringify with indentation).

use json
let data = {"nested": {"a": 1, "b": [2, 3]}}
print(json.pretty(data))

json.isValid(jsonString)

Checks structure validity without throwing. Returns boolean.

use json
print(str(json.isValid('{"ok": 1}')))   # True
print(str(json.isValid("{bad}")))       # False

Round-Trip Example

use json
let doc = '{"user": "Riad", "verified": true, "scores": [98, 92, 100]}'
let obj = json.parse(doc)
let back = json.stringify(obj, Null, True)
print(back)
print(str(json.isValid(doc)))  # True