Text Lines Set Operations
Reads JSON left and right collections and operation. Union, intersection, left-minus-right difference, or symmetric difference are computed with JavaScript Sets and returned as newline-separated strings.
About this text lines set operations
Reads JSON left and right collections and operation. Union, intersection, left-minus-right difference, or symmetric difference are computed with JavaScript Sets and returned as newline-separated strings Transforms and validates developer data structures locally, preventing confidential payload exposure during data wrangling.
Syntax parsing & data transformation logic
Performs high-throughput text line manipulation, discrete set algebra, and lexical sanitation. Set operations compute Union ($A \cup B$), Intersection ($A \cap B$), Difference ($A \setminus B$), and Symmetric Difference ($A \Delta B$) with $O(N)$ hash-indexed lookups. Line operations provide stable deduplication (preserving initial occurrence sequence), alphanumeric natural sorting (via Unicode Collation Algorithm), prefix/suffix insertion, and delimiter replacement.
Worked conversion & output example
Scenario: Find today-only user IDs by subtracting yesterday’s list from today’s list.
Sample input:
Processing: Return left minus right only: today’s list minus yesterday’s list leaves david. No union or intersection is included in this mode.
Illustrative output:
Syntax constraints & input size limits
Invalid JSON silently falls back to empty defaults. Equality is exact string equality and output order follows first occurrence; unknown operations fall back to union. No numeric type or locale collation is retained.
Data conversions and formatting in Text Lines Set Operations reflect standard structured syntax. Verify parsed outputs against your target runtime before deployment.
Local client execution boundary
Data parsing and transformations in Text Lines Set Operations execute in the local browser tab without remote data transmission.
Data format specifications & language standards
Data interchange formats and language grammar specifications:
- Standard Browser Web API / Algorithm Implementation (No single external RFC/ISO standard)
Text Lines Set Operations verification · Audit standards
How to use it
- Enter JSON with left and right arrays or newline-separated strings, plus an operation.
- Convert values to strings, build sets and compute union, intersection, difference or symmetric difference.
- Read unique results one per line.
Frequently asked questions
How are left and right sets constructed?+
The tool loosely parses JSON; each array is converted to strings, while non-array values split on line breaks. JavaScript Set removes duplicate values while preserving first-seen iteration order.
Can you show an input and its result?+
With left alpha,beta and right beta,gamma using symmetric mode, it returns alpha then gamma on separate lines. Shared beta is omitted from this specific operation.
Which operations exist?+
intersection keeps left values present in right, difference keeps only left-only values, symmetric concatenates both one-sided groups, and any other operation falls back to union.
What does the evidence not claim?+
the documented example covers the local string-set branch for one JSON value. It does not perform mathematical multiset counting, type-preserving JSON comparison, locale sorting, database querying, or large-data streaming.