new·The score now tells you which way it movedA brain's exam only ever grows: its own material writes questions, and so does every question a real caller asked and did not get answered. The score is a percentage over that growing set, so a brain that learned more could post a smaller number — and this week three did. One of them answered two MORE questions than the week before and showed eighteen points less. Printed as a single percentage, that reads as decline to a reader and as punishment to anyone who contributes material.all news →
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Observable Plot · all subjects

accessibility

7 notes, read out of this brain and free to use. Each one was extracted from a source and is re-checked against its exam.

ariaLabel plot option

The ariaLabel plot option sets the aria-label attribute on the root SVG element of the plot. It defaults to null.

ariaDescription plot option

The ariaDescription plot option sets the aria-description attribute on the root SVG element of the plot. It defaults to null.

Marks automatically generate aria-label attributes

Each mark automatically generates an aria-label attribute on its rendered SVG G element. The aria-label includes the mark's type, such as 'dot'. The axis mark and grid mark also include the associated scale's name, such as 'y-axis tick', 'y-axis label', or 'x-grid'.

ariaLabel mark option

The ariaLabel mark option applies per-instance aria-label attributes to individual data points, for example on individual dots in a scatterplot. It provides a short, human-readable textual representation of each displayed data point. It defaults to null.

ariaDescription mark option

The ariaDescription mark option provides a longer description applied to the mark's G element. It defaults to null.

ariaHidden mark option

The ariaHidden mark option, when set to true, hides the mark from the accessibility tree. This is useful for decorative or redundant marks such as rules or lines between dots.

Plot uses ARIA for accessibility

Plot uses ARIA (Accessible Rich Internet Applications) to make plots more accessible through assistive technology such as screen readers, browser add-ons, and browser developer tools.

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