Messing with OL
Use a stack structure to check for matching parentheses.
What's going on
Make a rectangle fall when you click the button
Highlight the current menu item, with some adjustment to the point at which one or more elements become "active".
Use reduce to pass a list of filters into a single filter call.
Expands to reveal all paths to leaf nodes of an object that match a query.
CLAPS. BETWEEN. EVERY. WORD.
Tap the button to get a tempo in beats per minute
Use jQuery to select and unselect all checkboxes.
Translated from C# in James McCaffrey's MSDN magazine article: https://msdn.microsoft.com/en-us/magazine/mt632275