luhn-generator
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A generator of numbers that passes the validation of Luhn algorithm or Luhn formula, also known as the 'modulus 10' or 'mod 10' algorithm
11 lines (8 loc) • 380 B
JavaScript
function tabindexEvaluate(node, options, virtualNode) {
const tabIndex = parseInt(virtualNode.attr('tabindex'), 10);
// an invalid tabindex will either return 0 or -1 (based on the element) so
// will never be above 0
// @see https://www.w3.org/TR/html51/editing.html#the-tabindex-attribute
return isNaN(tabIndex) ? true : tabIndex <= 0;
}
export default tabindexEvaluate;