Tryit Editor v1.8

Source Code:
<!DOCTYPE html> <html> <body> <h2>Create Object from JSON String</h2> <p>Original name: <span id="origname"></span></p> <p>New name: <span id="newname"></span></p> <script> var employees = [ { "firstName" : "John" , "lastName" : "Doe" }, { "firstName" : "Anna" , "lastName" : "Smith" }, { "firstName" : "Peter" , "lastName" : "Jones" }, ]; document.getElementById("origname").innerHTML=employees[0].firstName + " " + employees[0].lastName; // Set new name employees[0].firstName="Gilbert"; document.getElementById("newname").innerHTML=employees[0].firstName + " " + employees[0].lastName; </script> </body> </html>
Result:
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