JSON Extract Data

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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