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

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PostgresSubqueries & ranked selection

Include missing values in a not-equal filter

Postgres: Ordinary inequality does not include NULL; explicitly include it when that is the intended rule.

Postgres✓ Tested
SQLiteSubqueries & ranked selection

Include missing values in a not-equal filter

SQLite: Ordinary inequality does not include NULL; explicitly include it when that is the intended rule.

SQLite✓ Tested
GitStashing selected work

Include untracked files in a stash

Git: The include-untracked option saves new files along with tracked edits.

Git✓ Tested
Bash ScriptsGetting Started

Increase an integer variable

Bash Scripts: Increase an integer variable with a small standalone Bash program.

Bash Scripts✓ Tested
Bash ScriptsText parsing & arithmetic

Increment a counter without an unexpected errexit

Bash Scripts: An assignment avoids the zero-result exit status of a standalone arithmetic post-increment.

Bash Scripts✓ Tested
AngularGetting Started

Inject a service into a component

Inject a service into a component with a standalone Angular component and explicit browser behavior.

Angular✓ Tested
SQLChange & combine data

Insert a row with named columns

Add a record without relying on implicit column order.

INSERT✓ Tested
jQueryInsertion & wrapping

Insert a sibling after an element

jQuery: after preserves the selected element and adds its next sibling.

jQuery✓ Tested
jQueryInsertion & wrapping

Insert a sibling before an element

jQuery: before inserts outside the selected element.

jQuery✓ Tested
RustMaps & sets

Insert and retrieve a map value

Insert and retrieve a map value in a complete Rust program using the standard library.

Rust✓ Tested
Docker / ComposeLimits & process security

Insert Docker’s small init process

Docker / Compose: The init option adds a PID 1 process that reaps children and forwards signals.

Docker / Compose✓ Tested
Arduino / CGetting Started

Inspect a byte as hexadecimal

Arduino / C: Inspect a byte as hexadecimal on an Uno with the Serial Monitor set to 9600 baud.

Arduino / C✓ Tested