Flat JSON Value Differences
Chubb● EasyNEW GRADOAProblem statement
Each input is a valid JSON object with unique alphanumeric keys and string values. Return all keys present in both objects whose values differ.
Return the keys in ascending lexicographic order. Keys appearing in only one object are ignored.
Function
differentCommonKeys(firstJson: String, secondJson: String) → String[]Examples
Example 1
firstJson = "{\"name\":\"John\",\"age\":\"30\",\"status\":\"active\"}"secondJson = "{\"name\":\"John\",\"age\":\"31\",\"status\":\"inactive\",\"role\":\"admin\"}"return = ["age","status"]Only common keys with unequal string values survive, then lexicographic sorting determines the result.
Example 2
firstJson = "{}"secondJson = "{}"return = []Only common keys with unequal string values survive, then lexicographic sorting determines the result.
Example 3
firstJson = "{\"a\":\"1\"}"secondJson = "{\"a\":\"1\"}"return = []Only common keys with unequal string values survive, then lexicographic sorting determines the result.
Constraints
- Each JSON string has length at most
100000. - Objects are flat and contain only unique ASCII alphanumeric keys and ASCII alphanumeric string values.
- Whitespace may appear outside quoted strings.
Source note: Author-written prompt excerpt retained for source fidelity.