assets/highlightjs: Add synchronous version of lineNumberBlock
It enables to get a more readable code in diff-utils module by removing some
setTimeout instructions.
Migrated from D3789 (view on Phabricator)
Staging instance, all changes can be removed at any time
It enables to get a more readable code in diff-utils module by removing some
setTimeout instructions.
Migrated from D3789 (view on Phabricator)