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Small, practical examples. Search by task or narrow things down below.

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C++Text validation & parsing

Trim surrounding ASCII whitespace

C++: Find the first and last non-whitespace bytes before taking a substring.

C++✓ Tested
GoStrings & text

Trim surrounding whitespace

Trim surrounding whitespace using a complete Go program with explicit sample inputs.

Go✓ Tested
PowerShellStrings & literal text

Trim whitespace around a string

PowerShell: The Trim method removes surrounding whitespace while preserving the middle of the string.

PowerShell✓ Tested
RustStrings & Unicode

Trim whitespace around text

Trim whitespace around text in a complete Rust program using the standard library.

Rust✓ Tested
GoConcurrency & cancellation

Try a channel receive without blocking

Try a channel receive without blocking using a complete Go program with explicit sample inputs.

Go✓ Tested
TypeScriptUtilities & async

Type an object update with Partial

Allow a caller to provide just the fields to change.

Partial✓ Tested
GitRestoring & revising local work

Uncommit a local change and leave its edits unstaged

Git: A mixed reset resets the index while retaining working-file contents.

Git✓ Tested
GitRestoring & revising local work

Uncommit the latest local change while keeping it staged

Git: A soft reset moves the branch tip but preserves both index and working files.

Git✓ Tested
GoGetting Started

Understand default zero values

Understand default zero values using a complete Go program with explicit sample inputs.

Go✓ Tested
GitBranches & recovery

Undo a commit with a new commit

Reverse a change while preserving shared history.

revert✓ Tested
C++Containers & compound values

Unpack a tuple with structured bindings

C++: Structured bindings give names to the parts of a returned compound value.

C++✓ Tested
SQLiteTables & writes

Update a row on conflict

Use a primary key to insert or update one value.

upsert✓ Tested