Sparkline

Charming::Components::Sparkline renders a series of numbers as a compact one-line bar graph using the eighth-block glyphs ▁▂▃▄▅▆▇█ — one cell per value, scaled between the series’ min and max. It is a static renderable, pure text, so it works on every terminal. Reach for it when you want a trend at a glance inside a status bar, table row, or dashboard line; reach for Chart when you need more than one row of resolution.

▁▂▄▆█▆▄▂▁▃▅▇

Quick start

render_component(Charming::Components::Sparkline.new(
  values: assigns.fetch(:series),
  style: theme.info
))

Options

Option	Default	What it does
values:	required	The numeric series — one output cell per value.
style:	nil	A Charming::UI::Style used to paint the glyphs (e.g. theme.info).
theme:	nil	Forwarded to the view layer.

Tips

• Values normalize to the eight bar heights: the minimum gets ▁, the maximum gets █. There is no shared scale between two sparklines, and a flat series renders as all ▁.
• Output width equals values.length — trim or bucket the series yourself to fit a layout; the component does no resampling.
• An empty series renders as an empty string.