Validating string

It is always recommended to prevent attacks as early as possible in the processing of the user’s (attacker's) request.Input validation can be used to detect unauthorized input before it is processed by the application.For instance, in the below example, because 'name' is not specified in the update operation, update validation will succeed.provides a declarative way of validating javascript objects.You can configure the content of the error messages and the display characteristics of validation errors. In most cases, you can override these messages with your own.The default error messages for all validators are defined by using resource bundles so that you can easily change them as part of localizing your application.

start date is before end date, price is within expected range).

You can override the default value of an error message for all validator objects created from a validator class by editing the resource bundles associated with that class.

You edit the error message for a specific validator object by writing a String value to a property of the validator.

The goal of is to provide a cross framework and cross language way of validating data.

JSONLint is a validator and reformatter for JSON, a lightweight data-interchange format.


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