Results for “IS NULL”
Small, practical examples. Search by task or narrow things down below.
Handle three possible outcomes
JavaScript: Check high, normal and low values with an ordered conditional chain.
JavaScript✓ Tested
Hello World: Blink
Arduino / C: Blink the built-in LED slowly and then quickly, repeating both rates in loop().
Arduino / C✓ Tested
Hide an element while keeping it mounted
Hide an element while keeping it mounted with a standalone Angular component and explicit browser behavior.
Angular✓ Tested
Hide and show content
Use a button to toggle jQuery visibility and an accessibility state.
jQuery✓ Tested
Hide interface controls in print layout
CSS: A print media query can retain article content while removing interactive controls.
CSS✓ Tested
Highlight a group containing keyboard focus
CSS: Focus-within matches a parent when any descendant has focus.
CSS✓ Tested
Identify a commit exactly at a release tag
Git: Describe with exact-match refuses to invent a label for a later commit.
Git✓ Tested
Identify the current page in a breadcrumb
HTML: An ordered breadcrumb list sits inside a named navigation region, with aria-current on the current location.
HTML✓ Tested
Identify the current practice branch
Git: Identify the current practice branch inside the disposable repository created by the input setup.
Git✓ Tested
Ignore a personal scratch file without changing shared rules
Git: The repository-local exclude file applies only to this checkout.
Git✓ Tested
Ignore generated files
Exclude build output from untracked-file listings.
gitignore✓ Tested
Ignore small movements around a center value
Arduino / C: Values inside the deadband become zero while others keep their direction.
Arduino / C✓ Tested