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Objects are not valid as a React child (found: object with keys {}). If . . . When you give the array of friends to CardList you just want it to render one Card component for each friend element in the list React takes care of all of the DOM manipulations behind the scenes so it needs to be sure that every element on the screen can be uniquely identified
Understanding and Resolving the “Objects Are Not Valid as a React Child . . . If they need to render a collection of items, they can use array methods like map to transform the data into valid React elements before rendering them They can also create a separate child component to render each item in the collection
How to Fix “objects are not valid as a react child” - React Js Guru Table of Contents Understanding the Error: Causes of the Error: Passing an Object as a React Child: Solution 1: Rendering Object Properties Using Objects in Arrays Incorrectly: Solution 2: Mapping Array of Objects Conclusion: