React Js Get Array Item/Value by Index

React Get Array Item/Value by Index | Array of Object: In Reactjs, you can access an array item/value by index using square brackets notation, like array[index]. For example, if you have an array myArray and want to get the value at index i, you can do myArray[i]. If the array contains objects, you can access an object by index and its property using dot notation. For instance, if the object has a property called name, you can access it with myArray[i].name. Remember that array indices start from 0, so the first element is at index 0, the second at index 1, and so on.

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How do you access an array value by index in Reactjs?

In this Reactjs code, an array named myArray is defined with four elements: "apple", "banana", "orange", and "grape". The value at a specific index, in this case, index 2, is accessed using myArray[specificIndex]. The result is then displayed on the web page using ReactDOM. The output will show the array elements as a string and the value at index 2 (specificIndex), which is "orange".

React Js Access Array Value by Index Example

 <script type="text/babel" data-type="module">
      const { useState } = React;

      const App = () => {
        // Define the array
        const myArray = ["apple", "banana", "orange", "grape"];

        // Get value by index
        const specificIndex = 2;
        const valueAtIndex = myArray[specificIndex];

        return (
          <div className="container">
            <h1>React Js Access Array Value by Index</h1>
            <p>Array: {myArray.join(", ")}</p>
            <p>
              Value at index {specificIndex}: {valueAtIndex}
            </p>
          </div>
        );
      };

      ReactDOM.render(<App />, document.getElementById("app"));
    </script>

Run

Output of React Js Access Array Value by Index

How can I access an array of objects by index in Reactjs?

This Reactjs example demonstrates how to access an array of objects by index. The data array contains objects with an id and name. We want to retrieve the name at a specific index, which is set to 1 in this case. Using conditional logic, the code checks if the index is within the range of the array. If so, it assigns the corresponding name to the nameAtIndex variable; otherwise, it sets it to "Index out of range." The result is displayed in the rendered component, showing the name at the specified index.

React Js Access Array of object by Index Example

<script type="text/babel" data-type="module">
      const { useState } = React;

      const App = () => {
        const data = [
          { id: 1, name: "John" },
          { id: 2, name: "Jane" },
          { id: 3, name: "Bob" },
        ];

        const indexToAccess = 1;
        let nameAtIndex;

        if (indexToAccess < data.length) {
          nameAtIndex = data[indexToAccess].name;
        } else {
          nameAtIndex = "Index out of range.";
        }

        return (
          <div className='container'>
            <h1>React Js Access Array of object by Index Example</h1>
            <p>Data: {JSON.stringify(data)}</p>
            <p>
              Name at index {indexToAccess}: {nameAtIndex}
            </p>
          </div>
        );
      };

      ReactDOM.render(<App />, document.getElementById("app"));
    </script>

Run

React JS Tutorial

React Js Get Array Item/Value by Index

How do you access an array value by index in Reactjs?

React Js Access Array Value by Index Example

Output of React Js Access Array Value by Index

How can I access an array of objects by index in Reactjs?

React Js Access Array of object by Index Example

Output of React Js Access Array of object by Index

React JS Tutorial

React Js Get Array Item/Value by Index

Feedback for Abhishek

How do you access an array value by index in Reactjs?

React Js Access Array Value by Index Example

Output of React Js Access Array Value by Index

How can I access an array of objects by index in Reactjs?

React Js Access Array of object by Index Example

Output of React Js Access Array of object by Index