I'm building a React component that accepts a JSON data source and creates a sortable table. Each of the dynamic data rows has a unique key assigned to.
Each child in an array should have a unique "key" prop. Check the render method of TableComponent.
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Your rows in JS array should have unique key property. It'll help ReactJS to find references to the appropriate DOM nodes and update only content inside mark-up but not re-render the whole table/row