JSON Extract Data
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JSON Extract Data
The JavaScript offers two ways in which one can assign or retrieve a value from an instance. They are
- Dot notation
- Bracket notation
Dot Notation
In the following example, we use dot notation to access the name (key) of the first object in the data variable.
Example
HTML Editor
<!DOCTYPE html>
<html lang="en-US">
<body>
<h1>JSON Extract Data</h1>
<p id="point"></p>
<button onclick="myFunction()">Click Me</button>
<script>
var data = [
{
"name": "Mike",
"age": 36
},
{
"name": "Alex",
"age": 30
}
]
function myFunction(){
document.getElementById("point").innerHTML = data[0].name;
}
</script>
</body>
</html>
Bracket Notation
In the following example, we use bracket notation to access the name (key) of the first object in the data variable.
Example
HTML Editor
<!DOCTYPE html>
<html lang="en-US">
<body>
<h1>JSON Extract Data</h1>
<p id="point"></p>
<button onclick="myFunction()">Click Me</button>
<script>
var data = [
{
"name": "Mike",
"age": 36
},
{
"name": "Alex",
"age": 30
}
]function myFunction(){
document.getElementById("point").innerHTML = data[0]["name"];
}
</script>
</body>
</html>
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