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push() Method in JavaScript

王林Original: 2024-07-18 16:50:11512browse

The push() method in JavaScript adds one or more elements to the end of an array. This method modifies the original array and returns the new length of the array.

Syntax :

array.push(element1, element2, ..., elementN);

*Example 1.: *

const fruits = ["Apple", "Banana"];
fruits.push("Orange", "Mango");
console.log(fruits); // Output: ["Apple", "Banana", "Orange", "Mango"]

*Example 2.: *
How to Dynamically Add Elements Using the push() Method

index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Fruit List</title>
   <link rel="stylesheet" href="style.css">
</head>
<body>
    <div id="container">
        <h2>Fruit List</h2>
        <input type="text" id="addEle" placeholder="Enter fruit name..." />
        <button onclick="AddEle()">Add Element</button>
        <h4 id="ans"></h4>
    </div>
    <script>
        function AddEle() {
            const fruits = ["Banana", "Orange", "Lemon", "Apple", "Mango", "Strawberry"];
            const NewVal = document.getElementById("addEle").value;

            if (NewVal === "") {
                alert("Please Enter Fruit Name..!");
            } else {
                fruits.push(NewVal); 
                document.getElementById("ans").innerHTML = fruits.join(", ");
                document.getElementById("addEle").value = ""; 
            }
        }
    </script>
</body>
</html>

style.css

 body {
            font-family: Arial, sans-serif;
            margin: 20px;
            padding: 0;
        }
        #container {
            max-width: 500px;
            margin: 0 auto;
            padding: 20px;
            border: 1px solid #ddd;
            border-radius: 5px;
        }
        h2 {
            text-align: center;
        }
        input[type="text"] {
            width: calc(100% - 24px);
            padding: 10px;
            margin-bottom: 10px;
            border: 1px solid #ccc;
            border-radius: 3px;
        }
        button {
            width: 100%;
            padding: 10px;
            background-color: #28a745;
            color: #fff;
            border: none;
            border-radius: 3px;
            cursor: pointer;
        }
        button:hover {
            background-color: #218838;
        }
        h4 {
            margin-top: 20px;
            color: #555;
        }

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