Getting errors from Monaco editor

Question

I would like to get hold of the errors created by default by Monaco editor.

Answer 1

It looks like you can call monaco.editor.getModelMarkers({}) to get the list of all markers in the document, and then filter that yourself to limit it to the errors you're interested in. I would prefer a more clearly-documented route, but in my ad-hoc testing this works.

Answer 2

This is a simple sample to log errors:

import * as monaco from 'monaco-editor'

// ...

monaco.editor.onDidChangeMarkers(([uri]) => {
  const markers = monaco.editor.getModelMarkers({resource: uri})
  console.log('markers:', markers.map(
    ({ message, startLineNumber, startColumn, endLineNumber, endColumn }) =>
      `${message} [${startLineNumber}:${startColumn}-${endLineNumber}:${endColumn}]`,
  ))
})