React Js Check if Array or Object contains Value
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React Js Check if Array or Object contains Value: In React.js, you can check if an array has any values using the length property. The length property returns the number of elements in an array, so if the value of length is greater than zero, it means the array has at least one element. You can use this property to conditionally render elements in your React components based on whether an array has values or not. For example, you can use a ternary operator to render a message if the array is empty, and render the array's elements otherwise. This is a simple and efficient way to check for array values in React.js.
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How can I check if a value is present in an array or object in React js?
This code snippet is a React component that renders an empty array if the demoArray state variable is empty; otherwise, it maps over the demoArray and renders each item as a paragraph element.
To check whether an element exists in the demoArray, you can use the Array.length Property
Output of React Js Check if Array or Object contains Value
