Prevent Object Mutation, ES6 freeCodeCamp Introduction, Learn Javascript in 2020, ES6 Syntax
In this lesson, we further embark on our ES6 journey. In previous lessons we learn that an object may still be changed by targetting specific parts of that object. If we wanted to make sure to keep an object constant, we can freeze our object, or lock it in place, by utilizing the Object.freeze function. This Obj freeze function allows us to keep an object constant that we do not allow to be changed or mutated. By using Object.freeze we can make sure our constant does not change later on in our code.
