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

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GitCommit history & revision selection

Filter history by its author identity

Git: The author filter selects commits by their recorded author metadata.

Git✓ Tested
jQueryCollections & styling

Filter parents containing a matching descendant

jQuery: has retains parents with a matching descendant.

jQuery✓ Tested
GitCommit history & revision selection

Find a commit that changed the count of a text string

Git: The pickaxe -S option finds commits that add or remove occurrences of a literal string.

Git✓ Tested
C++Ordering & set operations

Find a median element without fully sorting

C++: nth_element partitions around the element that would occupy the chosen sorted position.

C++✓ Tested
Docker / ComposeContainer lifecycle

Find a named container in the created state

Docker / Compose: Combine name and status filters to narrow a listing.

Docker / Compose✓ Tested
C++Strings

Find a substring

Check the result of std::string::find against npos.

C++✓ Tested
CStrings

Find a substring

Use strstr to find a literal substring in a C string.

C✓ Tested
CArrays

Find an array element

Use a bounded linear search over a C array.

C✓ Tested
jQueryCollections & styling

Find an element’s position among siblings

jQuery: index without arguments reports a zero-based sibling position.

jQuery✓ Tested
C++Sequence algorithms

Find both extremes in one algorithm call

C++: Check for a nonempty input before dereferencing the returned iterators.

C++✓ Tested
GitBranches & ancestry

Find branches that contain a selected commit

Git: branch --contains limits the list to branches whose histories include the chosen revision.

Git✓ Tested
GitCommits & history

Find commits by message

Search commit subjects and bodies for a phrase.

log✓ Tested