I have to listen to content changes in an Ace editor. I figured out many ways to do it, and I would like to know the best / most adequate / canonical way to do it.
- I am only interested in content changes. The event handler should be fired when user types/deletes characters, and I don’t need to know the content.
- There is no “multi-editor”: single editor session, no tabs. Though, for the future, supporting multiple sessions may be interesting, if there is no additional cost.
Questions:
- Should I use Editor or EditSession?
- If using the edit session, should I access it using the getter or directly the property? (getter should be the recommended one, but the property is exposed as well…)
- Should I listen to “change” or “input”? Notes:
- Native <textarea>’s use “input”.
- There are
editor.on('input', ...),editor.on('change', ...),editSession.on('change', ...), but noteditSession.on('input', ...).
API references:
editor.sessioneditor.getSession()editor.on('input', () => ...)editor.on('change', delta => ...)editSession.on('change', () => ...)
Additional question: when trying editSession.on('change', () => ...), I noticed the callback receives a “delta” object, whereas the callback is expected to provide no parameters. If someone has an explanation for this…