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Why Mutation Can Be Scary



A List Apart: The Full Feed | by A note from the editors: This article contain sample lessons from Learn JavaScript, a course that helps you learn JavaScript to build real-world components from scratch. To mutate means to change in form or nature. Something that’s mutable can be changed, while something that’s immutable cannot be changed. To understand mutation, think of the X-Men. In X-Men, people can suddenly gain powers. The problem is, you don’t know when these powers will emerge. Imagine your friend turns blue and grows fur all