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How to assign values to an array with null/empty objects in JavaScript?
Following is the code to assign values to an array with null/empty objects using JavaScript −
Example
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<style>
body {
font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}
.result {
font-size: 18px;
font-weight: 500;
color: rebeccapurple;
}
</style>
</head>
<body>
<h1>Assign values to an array with null/empty objects</h1>
<div class="result"></div>
<button class="Btn">CLICK HERE</button>
<h3>Click on the above button to assign values to empty object inside arrObj</h3>
<script>
let resEle = document.querySelector(".result");
let BtnEle = document.querySelector(".Btn");
let obj = {
firstName: "Rohan",
lastName: "Sharma",
address: "Delhi",
};
let arrObj = [{}, {}, {}];
BtnEle.addEventListener("click", () => {
arrObj.forEach((item, index) => {
item[Object.keys(obj)[index]] = obj[Object.keys(obj)[index]];
});
console.log(arrObj);
});
</script>
</body>
</html>Output
The above code will produce the following output −
On clicking the ‘CLICK HERE’ button and inspecting the output in console −
Updated on: 21-Jul-2020
667 Views
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