What is property based testing and why we need it?

I wanted to know what is property based testing and why we need it, can anyone please inform me about it.

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Property-based testing is used to test the software across a broad set of inputs. In property-based testing, libraries installed with generators are used to create input data for testing. It can also be accomplished by unit testing, but the development team will have to do extensive coding to incorporate different input values.

Why we need it?

Property tests are helpful when a variety of inputs need to be tested on a particular feature of a software product, or when you are worried with discovering missing edge cases.

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