Results for “led”
Small, practical examples. Search by task or narrow things down below.
Create an archive from an explicit file list
Linux Commands: Use tar -T for a controlled list of relative archive members.
Linux Commands✓ Tested
Disable a button
Set the live disabled property with jQuery prop.
jQuery✓ Tested
Expose a disclosure button’s expanded state
HTML: Keep aria-expanded synchronized with the controlled panel’s hidden state.
HTML✓ Tested
Find the last day of a month
Java: Use YearMonth so leap years and month lengths are handled by the calendar library.
Java✓ Tested
Give a function an optional argument
Let callers omit a value while keeping nounset enabled.
optional argument✓ Tested
Give a section an accessible region name
HTML: A section becomes a named landmark when its heading is referenced with aria-labelledby.
HTML✓ Tested
Give an inline SVG an accessible name
HTML: Use a title referenced by aria-labelledby for a meaningful inline vector image.
HTML✓ Tested
Handle a missing file without treating it as an empty file
C: Inspect errno after a failed fopen to distinguish the documented missing-path condition.
C✓ Tested
Handle an expected child-process failure
Python: Catch CalledProcessError when check=True reports a nonzero exit status.
Python✓ Tested
Hello World: Blink
Arduino / C: Blink the built-in LED slowly and then quickly, repeating both rates in loop().
Arduino / C✓ Tested
Merge two sorted sequences
C++: Both inputs must use the same ordering before merge is called.
C++✓ Tested
Offer a selection list
Provide a labeled HTML select with a default option.
HTML✓ Tested