How to store JSON data into JavaScript table format?
I am developing a web application and I use jQuery 1.5 and JavaScript for the main functionality of the app. I开发者_如何学C connect from my app to a RESTful interface where I GET information for a person. I use this function to retrieve the information from the json page:
var jqxhr = $.getJSON("example.json", function() { // store the data in a table }
My data in json format are like but I will get as a result more than one persons having the format of:
[{"person":{"time":"2010-02-18T17:59:44","id":1,"name": "John","age":60, "updated_at":"010-02-18T17:59:44"}}]
How can I store only the id, the name and the age of the person in a JavaScript table (to be more precise an array) and ignore the rest of the information?
Here is the specific JavaScript / jQuery you need, based on the MAP function.
var originalData = [
{ "person": { "time": "2010-02-18T17:59:34", "id": 1, "name": "John", "age": 60, "updated_at": "010-02-18T17:59:41"} },
{ "person": { "time": "2010-02-18T17:59:44", "id": 2, "name": "Bob", "age": 50, "updated_at": "010-02-18T17:59:42"} },
{ "person": { "time": "2010-02-18T17:59:54", "id": 3, "name": "Sam", "age": 40, "updated_at": "010-02-18T17:59:43"} }
];
var data = $.map(originalData, function (ele) {
return { id: ele.person.id, name: ele.person.name, age: ele.person.age };
});
Here is a full example that will convert and display the results in HTML.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<link href="Styles/Site.css" rel="stylesheet" type="text/css" />
<script src="Scripts/jquery-1.6.1.js" type="text/javascript"></script>
<script type="text/javascript">
function CreateTableView(objArray, theme, enableHeader) {
// set optional theme parameter
if (theme === undefined) {
theme = 'mediumTable'; //default theme
}
if (enableHeader === undefined) {
enableHeader = true; //default enable headers
}
// If the returned data is an object do nothing, else try to parse
var array = typeof objArray != 'object' ? JSON.parse(objArray) : objArray;
var str = '<table class="' + theme + '">';
// table head
if (enableHeader) {
str += '<thead><tr>';
for (var index in array[0]) {
str += '<th scope="col">' + index + '</th>';
}
str += '</tr></thead>';
}
// table body
str += '<tbody>';
for (var i = 0; i < array.length; i++) {
str += (i % 2 == 0) ? '<tr class="alt">' : '<tr>';
for (var index in array[i]) {
str += '<td>' + array[i][index] + '</td>';
}
str += '</tr>';
}
str += '</tbody>'
str += '</table>';
return str;
}
$(document).ready(function () {
var originalData = [
{ "person": { "time": "2010-02-18T17:59:34", "id": 1, "name": "John", "age": 60, "updated_at": "010-02-18T17:59:41"} },
{ "person": { "time": "2010-02-18T17:59:44", "id": 2, "name": "Bob", "age": 50, "updated_at": "010-02-18T17:59:42"} },
{ "person": { "time": "2010-02-18T17:59:54", "id": 3, "name": "Sam", "age": 40, "updated_at": "010-02-18T17:59:43"} }
];
var data = $.map(originalData, function (ele) {
return { id: ele.person.id, name: ele.person.name, age: ele.person.age };
});
$('#results').append(CreateTableView(data, 'lightPro', true));
});
</script>
</head>
<body>
<div id="results" style="width: 500px; margin: 20px auto;">
</div>
You can use jQuery's map function:
var data = $.map(originalData, function(person) {
return { id: person.id, name: person.name, age: person.age };
});
map basically converts each item in an Array, producing a new Array with the modified objects.
$.getJSON("example.json", function(data) {
var name = data.person.name;
var id = data.person.id;
var age = data.person.age;
}
what do exactly mean by a javascript table u can store in a html table by
var $table = $("<table>
<tr><td>name</td><td>"+name+"</td></tr>
<tr><td>id</td><td>"+id+"</td></tr>
<tr><td>age</td><td>"+age+"</td></tr>
</table>");
加载中,请稍侯......
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