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Cannot read properties of undefined (reading 'map')
See original GitHub issueAs follow, i am working on changing mode when editing.
There seems this.instance.setOption("mode",mode) has no error, but then, the editor can’t be focused on and Cannot read properties of undefined (reading 'map') appears.
What should i do? please help me.
Issue Analytics
- State:
- Created 2 years ago
- Comments:5 (2 by maintainers)
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I don’t know a lot about Vue, but I do know that is does strange things to objects managed as part of its state, and you don’t want to put complicated stateful objects like a CodeMirror instance in there. Try refactoring your code to not have the CodeMirror instance in the
dataobject.Thank you so much I was having the same issue Cannot read properties of undefined (reading ‘map’) occasionally and I removed codemirror instance from data object and instance just assigned it to a const.