7 lines
397 B
JavaScript
7 lines
397 B
JavaScript
/* eslint-disable no-bitwise, no-cond-assign */
|
|
// HTML DOM and SVG DOM may have different support levels,
|
|
// so we need to check on context instead of a document root element.
|
|
export default function contains(context, node) {
|
|
if (context.contains) return context.contains(node);
|
|
if (context.compareDocumentPosition) return context === node || !!(context.compareDocumentPosition(node) & 16);
|
|
} |