Data Validation Overview

Last updated on June 26, 2024.

Data validation in javascript concerns itself with the task of ensuring that inputs to a given form or API is clean, correct, and useful. In addition, validation is the first step of ensuring that inputs made to a web application is safe, i.e. will not leave the system exposed to malicious attacks.

There are two places where data is commonly validated:

It is best practice to implement both types at the same time throughout the system.

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