Scala Fold
Scala foldLeft snippet for syntax and indexer tests.
object FoldDemo {
def sum(xs: List[Int]): Int =
xs.foldLeft(0)(_ + _)
}
Specifications
- Language
- scala
- Role
- idiomatic sample
- Line Endings
- LF
What is a .scala file?
Scala (.scala) is a plain-text source file for Scala — a JVM language combining object-oriented and functional styles, with case classes, pattern matching, and a powerful type system.
How to use this file
Use an example .scala file to test Scalafmt, Scala compilers, syntax highlighters, and language-detection tooling.
How to use this file for testing
“Scala Fold” is a deterministic Novus Examples fixture for Syntax highlighting, Code parsing, Editor testing. Idiomatic hello-world programs and realistic snippets across sixteen languages, exercising comments, string escapes, interpolation, numeric literals, and language keywords — for testing syntax highlighters, editor themes, and tree-sitter grammars.
Documented properties for this file: idiomatic sample · scala · LF. Compare results against paired or grouped companions on this page when present (clean↔damaged, searchable↔scanned, or format twins) so scores stay reproducible across runs.
Download the file once, keep the path stable in CI or local scripts, and treat the spec table as the contract: dimensions, seeds, field lists, and roles are intentional. Corrupt or invalid samples are labelled as such — expect parsers to fail loudly rather than silently accept them.
This is a short, known-correct source file. Run it through your syntax highlighter, linter, formatter, tree-sitter grammar, or parser, and open it in the in-browser editor to tweak and re-download. Each snippet exercises comments, string escapes, literals, and language keywords.
Code examples
scala fold.scalaRelated files
- scalaScala HelloScala 3-style object hello for Scalac / Metals fixtures.
- scalaScala MatchScala pattern match SAMPLE for Metals fixtures.
- cC — Hello WorldThe classic hello-world in C — an include, main, and printf — for testing highlighters, C compilers, and parsers against the canonical first program.
- cC — Linked list (structs, malloc, pointers)A realistic C program: a singly linked list with a typedef struct, malloc/free memory management, pointer walking, and error handling — for testing highlighters, compilers, and static analysers.
- cC StructC struct SAMPLE for clangd / highlighter fixtures.
- csC# FibonacciA small C# iterator Fibonacci utility — realistic snippet for language tooling.
Generated by generation/code_wave_c.py. Free for any use, no attribution required — license.