<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" name="viewport" content="width=device-width, initial-scale=1"/> <link rel="stylesheet" type="text/css" href="css/bootstrap.css"/> </head> <body> <nav class="navbar navbar-default"> <div class="container-fluid"> </div> </nav> <div class="col-md-6 well"> <hr style="border-top:1px dotted #ccc;"/> <div class="col-md-8"> </div> <div class="col-md-4"> <div class="form-group"> <input type="text" class="form-control" id="firstname"/> </div> <div class="form-group"> <input type="text" class="form-control" id="lastname"/> </div> <div class="form-group"> <input type="text" class="form-control" id="address"/> </div> </div> </div> </body> </html>
var member = JSON.parse('{"member":[]}'); function displayResult(firstname, lastname, address, json){ document.getElementById('result').innerHTML = "<pre>"+json+"</pre>"; firstname.value = ""; lastname.value = ""; address.value = ""; } function convertString(){ var firstname = document.getElementById('firstname'); var lastname = document.getElementById('lastname'); var address = document.getElementById('address'); if(firstname.value == "" || lastname.value == "" || address.value == ""){ alert("Please complete the required field!"); }else{ var str = '{"firstname": "'+firstname.value+'", "lastname": "'+lastname.value+'", "address": "'+address.value+'"}'; member['member'].push(str); var stringify = JSON.stringify(member, null, ' '); var json = stringify.replace(/\\/g, ''); displayResult(firstname, lastname, address, json); } }