[Home](./index.md) > [kibana-plugin-plugins-expressions-public](./kibana-plugin-plugins-expressions-public.md) > [ExpressionRenderer](./kibana-plugin-plugins-expressions-public.expressionrenderer.md) > [validate](./kibana-plugin-plugins-expressions-public.expressionrenderer.validate.md) ## ExpressionRenderer.validate property Signature: ```typescript readonly validate: () => void | Error; ```