Hi Guys,
I was checking out a small code in Javascript which adds a javascript class object/JSON object in a
localstorage. The localstorage saves the array object and displays it in the bootstrap table/grid.
You need to have knowledge of JSON and object oriented programming in Javascript. However comments
have been added which can help you out.
Following is the HTML and Javascript content
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Enter Exam Details</title>
<!-- include Bootstrap CSS for layout -->
<link href="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.2.1/css/bootstrap-
combined.min.css" rel="stylesheet">
</head>
<body>
<div class="container">
<h1>Add your past exam details</h1>
<form method="post" class="form-horizontal">
<fieldset>
<legend>Add Exams</legend>
<div class="control-group">
<label class="control-label" for="type">Type of enquiry</label>
<div class="controls">
<select name="type" id="type">
<option value="">Please select</option>
<option value="general">General</option>
<option value="sales">Sales</option>
<option value="support">Support</option>
</select>
</div>
</div>
<div class="control-group">
<label class="control-label" for="name">Name</label>
<div class="controls">
<input class="input-xlarge" type="text" name="name" id="name" value=""
maxlength="50">
</div>
</div>
<div class="control-group">
<label class="control-label" for="email">Email Address</label>
<div class="controls">
<input class="input-xlarge" type="text" name="email" id="email" value=""
maxlength="150">
</div>
</div>
<div class="control-group">
<label class="control-label" for="message">Message</label>
<div class="controls">
<textarea class="input-xlarge" name="message" id="message"></textarea>
</div>
</div>
<div class="control-group">
<div class="controls">
<label class="checkbox">
<input name="subscribe" id="subscribe" type="checkbox">
Subscribe to our newsletter
</label>
</div>
</div>
</fieldset>
<div class="form-actions">
<input type="button" name="submit" id="submit" value="Send" class="btn btn-primary">
</div>
<div id="grid">
<table id="tgrid" class="table table-hover">
<tr id="thead">
<th>Email</th>
<th>Message</th>
<th>Name</th>
<th>Type</th>
</tr>
</table>
</div>
</form>
</div>
<!-- include jQuery library -->
<script src="http://code.jquery.com/jquery-latest.js"></script>
<script>
$(document).ready(function () {
//This has been commented this clears the localstorage.
//localStorage.clear();
//Create a javascript class with name "items"
var items=function(){
type:"";
name:"";
email:"";
message:"";
};
//Create an array which can store object of the class
var emp=new Array();
/*
* check if the browser supports local storage
*/
if (localStorage) {
function load()
{
var data=new Array();
data=JSON.parse(localStorage["data"]);
console.log(data.length);
for(i=0;i<data.length;i++)
{
//console.log('Email of '+(i+1)+' '+data[i].email);
var html='<tr><td>'+data[i].email+'</td><td>'+data[i].message
+'</td><td>'+data[i].name+'</td><td>'+data[i].type+'</td></tr>';
$('#tgrid:last-child').append(html);
}
}
function added()
{
var data=new Array();
data=JSON.parse(localStorage["data"]);
i=data.length-1;
var html='<tr><td>'+data[i].email+'</td><td>'+data[i].message
+'</td><td>'+data[i].name+'</td><td>'+data[i].type+'</td></tr>';
$('#tgrid:last-child').append(html);
}
function clear()
{
$("#type").val("");
$("#name").val("");
$("#email").val("");
$("#message").val("");
}
//Loads the initial function
load();
$('#submit').click(function(){
//Checks if the data in the localstorage exists if yes stores the initial
//data in the array before saving so that the push method can save the new object at the top.
emp=JSON.parse(localStorage["data"]);
var obj=new items();
obj.type=$("#type").val();
obj.name=$("#name").val();
obj.email=$("#email").val();
obj.message=$("#message").val();
//Adds the object in the array emp
emp.push(obj);
//After adding the object in the array store the array in localStorage
localStorage["data"]=JSON.stringify(emp);
//Call the add method
added();
//clear form after saving it.
clear();
});
}//end of if(localstorage)
});
</script>
</body>
</html>
I was checking out a small code in Javascript which adds a javascript class object/JSON object in a
localstorage. The localstorage saves the array object and displays it in the bootstrap table/grid.
You need to have knowledge of JSON and object oriented programming in Javascript. However comments
have been added which can help you out.
Following is the HTML and Javascript content
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Enter Exam Details</title>
<!-- include Bootstrap CSS for layout -->
<link href="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.2.1/css/bootstrap-
combined.min.css" rel="stylesheet">
</head>
<body>
<div class="container">
<h1>Add your past exam details</h1>
<form method="post" class="form-horizontal">
<fieldset>
<legend>Add Exams</legend>
<div class="control-group">
<label class="control-label" for="type">Type of enquiry</label>
<div class="controls">
<select name="type" id="type">
<option value="">Please select</option>
<option value="general">General</option>
<option value="sales">Sales</option>
<option value="support">Support</option>
</select>
</div>
</div>
<div class="control-group">
<label class="control-label" for="name">Name</label>
<div class="controls">
<input class="input-xlarge" type="text" name="name" id="name" value=""
maxlength="50">
</div>
</div>
<div class="control-group">
<label class="control-label" for="email">Email Address</label>
<div class="controls">
<input class="input-xlarge" type="text" name="email" id="email" value=""
maxlength="150">
</div>
</div>
<div class="control-group">
<label class="control-label" for="message">Message</label>
<div class="controls">
<textarea class="input-xlarge" name="message" id="message"></textarea>
</div>
</div>
<div class="control-group">
<div class="controls">
<label class="checkbox">
<input name="subscribe" id="subscribe" type="checkbox">
Subscribe to our newsletter
</label>
</div>
</div>
</fieldset>
<div class="form-actions">
<input type="button" name="submit" id="submit" value="Send" class="btn btn-primary">
</div>
<div id="grid">
<table id="tgrid" class="table table-hover">
<tr id="thead">
<th>Email</th>
<th>Message</th>
<th>Name</th>
<th>Type</th>
</tr>
</table>
</div>
</form>
</div>
<!-- include jQuery library -->
<script src="http://code.jquery.com/jquery-latest.js"></script>
<script>
$(document).ready(function () {
//This has been commented this clears the localstorage.
//localStorage.clear();
//Create a javascript class with name "items"
var items=function(){
type:"";
name:"";
email:"";
message:"";
};
//Create an array which can store object of the class
var emp=new Array();
/*
* check if the browser supports local storage
*/
if (localStorage) {
function load()
{
var data=new Array();
data=JSON.parse(localStorage["data"]);
console.log(data.length);
for(i=0;i<data.length;i++)
{
//console.log('Email of '+(i+1)+' '+data[i].email);
var html='<tr><td>'+data[i].email+'</td><td>'+data[i].message
+'</td><td>'+data[i].name+'</td><td>'+data[i].type+'</td></tr>';
$('#tgrid:last-child').append(html);
}
}
function added()
{
var data=new Array();
data=JSON.parse(localStorage["data"]);
i=data.length-1;
var html='<tr><td>'+data[i].email+'</td><td>'+data[i].message
+'</td><td>'+data[i].name+'</td><td>'+data[i].type+'</td></tr>';
$('#tgrid:last-child').append(html);
}
function clear()
{
$("#type").val("");
$("#name").val("");
$("#email").val("");
$("#message").val("");
}
//Loads the initial function
load();
$('#submit').click(function(){
//Checks if the data in the localstorage exists if yes stores the initial
//data in the array before saving so that the push method can save the new object at the top.
emp=JSON.parse(localStorage["data"]);
var obj=new items();
obj.type=$("#type").val();
obj.name=$("#name").val();
obj.email=$("#email").val();
obj.message=$("#message").val();
//Adds the object in the array emp
emp.push(obj);
//After adding the object in the array store the array in localStorage
localStorage["data"]=JSON.stringify(emp);
//Call the add method
added();
//clear form after saving it.
clear();
});
}//end of if(localstorage)
});
</script>
</body>
</html>
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