runtime-core.esm-bundler.js?5c40:38 [Vue warn]: Extraneous non-emits event listeners (itemChange) were passed to component but could not be automatically inherited because component renders fragment or text root nodes. If the listener is intended to be a component custom event listener only, declare it using the "emits" option.
[Vue warn]: Avoid app logic that relies on enumerating keys on a component instance. The keys will be empty in production mode to avoid performance overhead.
runtime-core.esm-bundler.js?5c40:38 [Vue warn]: Extraneous non-emits event listeners (itemChange) were passed to component but could not be automatically inherited because component renders fragment or text root nodes. If the listener is intended to be a component custom event listener only, declare it using the "emits" option.