what is richText.type.transformPresence ?

[welkinwong]

I found this from /examples/rich-text-presence/rich-text.js

var richText = require('rich-text');

richText.type.transformPresence = function(presence, op, isOwnOp) {
  if (!presence) {
    return null;
  }

  var start = presence.index;
  var end = presence.index + presence.length;
  var delta = new richText.Delta(op);
  start = delta.transformPosition(start, !isOwnOp);
  end = delta.transformPosition(end, !isOwnOp);

  return Object.assign({}, presence, {
    index: start,
    length: end - start
  });
};

module.exports = richText;

but delete it, still works
so do i need this ?

[alecgibson]

What still works? The presence updates? It shouldn't.

[welkinwong]

What still works? The presence updates? It shouldn't.

yes, the presence updates, so why is this used?

[alecgibson]

Oh, actually I forgot that this PR was finally accepted and published: ottypes/rich-text#32

This shouldn't be needed any more if we make sure that rich-text uses at least 4.1.0.

[welkinwong]

Oh, actually I forgot that this PR was finally accepted and published: ottypes/rich-text#32

This shouldn't be needed any more if we make sure that rich-text uses at least 4.1.0.

Thanks for the answer! : )