When using element UI as the form check box, the error vue.runtime.esm.js appears?2b0e: 619 [Vue warn]: error in render: “typeerror: cannot read property ‘length’, as shown in the following figure:

the code is as follows:

the solution is to add the checklist field in the form object as follows:

export default {
	data() {
 		return {
			form: {
				checkList: []
			}
		}
 	}
}