Good point. There is a LeanCloud-specific solution called beforeSave hooks where you can check an object before it's saved. It is backend code but still much less work than writing and deploying an API server.
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Let's do form validations just on frontend!!
Good point. There is a LeanCloud-specific solution called beforeSave hooks where you can check an object before it's saved. It is backend code but still much less work than writing and deploying an API server.