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How to access JavaScript properties?
There are three ways to access JavaScript properties −
- Using dot property access: object.property
- Using square brackets notation: object[‘property’]
- Using object destructuring: let {property} = object
Following is the code for accessing JavaScript object properties −
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,
.sample {
font-size: 18px;
font-weight: 500;
color: blueviolet;
}
.sample {
color: red;
}
</style>
</head>
<body>
<h1>Access JavaScript object properties</h1>
<div><pre class="sample">{a:22,b:44}</pre></div>
<div class="result"></div>
<button class="Btn">Access</button>
<h3>Click on the above button to access object properites</h3>
<script>
let resEle = document.querySelector(".result");
let BtnEle = document.querySelector(".Btn");
let obj = { a: 22, b: 44 };
BtnEle.addEventListener("click", () => {
resEle.innerHTML += "obj.a = " + obj.a + "<br>";
resEle.innerHTML += "obj['a'] = " + obj["a"] + "<br>";
let { a } = obj;
resEle.innerHTML += "{a}=obj = " + a + "<br>";
});
</script>
</body>
</html>Output
On clicking the ‘Access’ button −
Updated on: 17-Jul-2020
174 Views
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