ariaColCount property of the
ElementInternals interface reflects the value of the
aria-colcount attribute, which defines the number of columns in a table, grid, or treegrid.
Setting aria attributes on
ElementInternals allows default semantics to be defined on a custom element. These may be overwritten by author-defined attributes, but ensure that default semantics are retained should the author delete those attributes, or fail to add them at all. For more information see the Accessibility Object Model explainer.
let ariaColCount = ElementInternals.ariaColCount; ElementInternals.ariaColCount = ariaColCount;
In this example the
aria-colcount attribute is set to "3".
this.internals_.ariaColCount = "3";
|Accessible Rich Internet Applications (WAI-ARIA) 1.2 (WAI-ARIA 1.2)|
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