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

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TypeScriptArray traversal & selection

Separate a first item from the remaining items

TypeScript: Array destructuring and a rest element produce named pieces of a sequence.

TypeScript✓ Tested
Docker / ComposeGetting Started

Separate an executable from default arguments

Docker / Compose: Separate an executable from default arguments with a complete introductory Dockerfile.

Docker / Compose✓ Tested
CSSType & reading flow

Separate an underline from the text

CSS: Text-underline-offset improves the gap between letters and a decorative underline.

CSS✓ Tested
jQueryEvent control

Stop a child event from reaching its parent

jQuery: stopPropagation leaves other handlers on the same element intact.

jQuery✓ Tested
AngularEvents & DOM interaction

Stop a nested click from reaching its parent

Stop a nested click from reaching its parent with a standalone Angular component and explicit browser behavior.

Angular✓ Tested
ReactAccessibility & events

Stop an event from reaching a parent handler

Stop an event from reaching a parent handler with a small React component and explicit browser behavior.

React✓ Tested
JavaStream transformations

Take a page from a stream

Java: Use skip and limit with a known stable input order.

Java✓ Tested
C#LINQ transformations

Take a page from an ordered sequence

C#: Apply a stable order before Skip and Take for predictable paging.

C#✓ Tested
AngularGetting Started

Toggle a CSS class from component state

Toggle a CSS class from component state with a standalone Angular component and explicit browser behavior.

Angular✓ Tested
HTMLNative disclosure & dialogs

Toggle a native popover from a button

HTML: The popovertarget relationship handles show and hide behavior without a click handler.

HTML✓ Tested
ReactForms & validation

Track whether a form differs from its initial value

Track whether a form differs from its initial value with a small React component and explicit browser behavior.

React✓ Tested
Arduino / CText & bounded buffers

Trim surrounding whitespace from an Arduino String

Arduino / C: String.trim modifies the object in place.

Arduino / C✓ Tested