Bar Chart Grow

Horizontal bars swap ranks over time as values change.

Add a "Bar Chart Race" (also called a racing bar chart) to [where].
Horizontal bars should grow and shrink as values change over time and slide smoothly past each other whenever their rank changes, each keeping its label.
Move the bars with transforms instead of re-ordering the markup so swaps glide rather than jump, and give users a way to pause it.

Chart elements interpolate smoothly from old to new values when data changes or datasets toggle.

Add a "Chart Data Transition" (also called a chart update animation) to [where].
When the data changes, every bar should glide from its old value to its new one at the same time, smooth and unhurried, instead of redrawing from zero.
Start each update from the values currently on screen so a quick second change does not jump, and apply new values instantly for users who prefer reduced motion.

Vertical bars grow and shrink out of phase, like an audio equalizer.

Add a "Bar Loader (Equalizer)" loading animation (also called a bars loader or audio bars) to [where].
A few vertical bars should stretch and shrink out of step with each other like an audio equalizer, at a lively but even pace.
Keep the loop seamless, give it a status label for screen readers, and stop the motion for users who prefer reduced motion.

A bar fills from left to right in proportion to task completion.

Add a "Determinate Progress Bar" (also called a progress bar fill or progress indicator) to [where].
The bar should fill from left to right in step with the real progress, easing smoothly between updates, with the percentage shown beside it.
Use proper progress bar semantics with current, minimum and maximum values so screen readers can read it, and never let the fill move backwards.

A ring or pie fills clockwise to its percentage.

Add a "Donut Chart Fill" animation (also called a pie chart sweep or animated donut chart) to [where].
Starting at the top, each segment should sweep clockwise in turn until the ring shows its share, easing out smoothly as it finishes.
Play it once when the chart comes into view, and keep the actual values available as text for screen readers.