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Results for “comm”

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

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Docker / ComposeExecution & file transfer

Supply an environment variable to an exec process

Docker / Compose: An exec environment override applies to the new process only.

Docker / Compose✓ Tested
GitGetting Started

Switch to a newly created branch

Git: Switch to a newly created branch inside the disposable repository created by the input setup.

Git✓ Tested
GitBranches & recovery

Temporarily store tracked-file edits

Restore a clean working tree and then reapply your saved changes.

stash✓ Tested
GitBranches & ancestry

Test whether one revision is an ancestor of another

Git: merge-base --is-ancestor reports its answer through the exit status.

Git✓ Tested
GitInspecting the working tree

Test whether tracked working files changed

Git: A quiet diff returns status one for differences, so handle it in a conditional.

Git✓ Tested
TypeScriptPromises & iteration protocols

Transform a resolved promise result

TypeScript: A then handler returns the value passed to the next promise in the chain.

TypeScript✓ Tested
TypeScriptText handling & Unicode

Transform each regex match with a callback

TypeScript: A replacement callback computes the replacement separately for each match.

TypeScript✓ Tested
TypeScriptText handling & Unicode

Trim and discard blank lines

TypeScript: Split a text block, trim each line, and keep nonempty values.

TypeScript✓ Tested
TypeScriptCollections & records

Type a dictionary with Record

Limit a lookup table to a known set of keys.

Record✓ Tested
TypeScriptTypes & functions

Type a function’s inputs and output

Catch mismatched arguments during compilation.

function✓ Tested
TypeScriptUtilities & async

Type an object update with Partial

Allow a caller to provide just the fields to change.

Partial✓ Tested
SQLSchema design & transactions

Undo a multi-row transfer atomically

SQL: The first transaction commits the fixtures. Rolling back the second transaction restores both sides of the attempted transfer.

SQL✓ Tested