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JavaScript — Hello World

The classic hello-world in modern JavaScript — a minimal function calling console.log, for testing highlighters, Node, and JS parsers.

File: JS · JavaScript
Use case: Syntax highlightingCode parsing+1

JavaScript — Intentionally Invalid Syntax

Intentionally corrupt JavaScript object literal — labelled invalid for error handling. Labelled intentionally invalid in title and description.

File: JS · JavaScript
Use case: Error handlingCode parsing+1

JavaScript — To-do list (class, private fields, async)

A realistic JavaScript snippet with an ES class, private #fields, arrow functions, template literals, a getter, and async/await — for testing highlighters, ESLint, Prettier, and bundlers.

File: JS · JavaScript
Use case: Syntax highlightingCode parsing+1

Javascript Lint Invalid — Eqeqeq Invalid

Intentionally lint-bait SAMPLE javascript snippet (eqeqeq-invalid) for rule-engine tests.

File: JS · JavaScript
Use case: Code parsingSyntax highlighting+1· Conversion set

Javascript Lint Invalid — Var Shadow Invalid

Intentionally lint-bait SAMPLE javascript snippet (var-shadow-invalid) for rule-engine tests.

File: JS · JavaScript
Use case: Code parsingSyntax highlighting+1· Conversion set

JSON — Intentionally Invalid (Lint Fixture)

Intentionally invalid JSON (unquoted key + trailing) for strict parser failure tests. Labelled intentionally invalid in title and description.

File: JSON · JSON
Use case: Error handlingCode parsing+1

Julia — Intentionally Invalid

Intentionally invalid Julia (unclosed function) for linter error-path tests.

File: JL · Julia
Use case: Error handlingCode parsing+1

Julia Broadcast

Julia broadcast operators (.^ .+ ) for highlighter and parser edge cases.

File: JL · Julia
Use case: Syntax highlightingCode parsing+1

Julia Fibonacci

Julia typed Fibonacci with a for-loop — realistic snippet for language tooling.

File: JL · Julia
Use case: Syntax highlightingCode parsing+1

Julia Hello

Minimal Julia hello-world for syntax highlighters and Julia LSP smoke tests.

File: JL · Julia
Use case: Syntax highlightingCode parsing+1

Julia Macro SAMPLE

Julia Macro SAMPLE for Wave G language-tooling coverage.

File: JL · Julia
Use case: Syntax highlightingCode parsing+1

Kotlin — Hello World

The classic hello-world in Kotlin — a top-level main function — for testing highlighters, the Kotlin compiler, and parsers.

File: KT · Kotlin
Use case: Syntax highlightingCode parsing+1

Kotlin — Order model (data classes, sealed types, when)

A realistic Kotlin snippet with data classes, an enum, a sealed result interface, extension functions, and when expressions — for testing highlighters, the Kotlin compiler, ktlint, and parsers.

File: KT · Kotlin
Use case: Syntax highlightingCode parsing+1

Kotlin Data Class

Kotlin data class SAMPLE for Kotlin language-server tests.

File: KT · Kotlin
Use case: Syntax highlightingCode parsing+1

Lua — Intentionally Invalid

Intentionally invalid Lua table for error handling.

File: LUA · Lua
Use case: Error handlingCode parsing+1

Lua Coroutine

Tiny Lua coroutine yield loop for language tooling.

File: LUA · Lua
Use case: Syntax highlightingCode parsing+1

Lua Hello

Minimal Lua hello for embedder and syntax-highlight tests.

File: LUA · Lua
Use case: Syntax highlightingCode parsing+1

Lua Metatable SAMPLE

Lua Metatable SAMPLE for Wave G language-tooling coverage.

File: LUA · Lua
Use case: Syntax highlightingCode parsing+1

Lua Table

Lua table with method colon syntax for parsers.

File: LUA · Lua
Use case: Syntax highlightingCode parsing+1

Nim — Intentionally Invalid

Intentionally invalid Nim for nim check error paths.

File: NIM · Nim
Use case: Error handlingCode parsing+1

Nim Hello

Minimal Nim hello for nimlsp / highlighter tests.

File: NIM · Nim
Use case: Syntax highlightingCode parsing+1

Nim Object

Nim object type plus proc — for Nim AST tooling.

File: NIM · Nim
Use case: Syntax highlightingCode parsing+1

Nim Proc

Nim recursive fib proc — realistic snippet.

File: NIM · Nim
Use case: Syntax highlightingCode parsing+1

Nim Template SAMPLE

Nim Template SAMPLE for Wave G language-tooling coverage.

File: NIM · Nim
Use case: Syntax highlightingCode parsing+1