function getMarkLength(markType, nodes) {
  let length = 0;
  while (nodes[length] && nodes[length].marks.includes(markType)) {
    ++length;
  }
  return { markType, length };
}
function getMarkLength(markType, nodes) {
  let length = 0;
  while (nodes[length] && nodes[length].marks.includes(markType)) {
    ++length;
  }
  return { markType, length };
}
function getMarkLength ( markType , nodes ) { let length = 0 ; while ( nodes [ length ] && nodes [ length ] . marks . includes ( markType ) ) { ++ length ; } return { markType , length } ; }
Get the number of consecutive Slate nodes containing a given mark beginning
from the first received node.
Get the number of consecutive Slate nodes containing a given mark beginning from the first received node .
Get the length of a node