How get specific html from a jQuery object - javascript

I am fetching html from a website. I want to get specific html from that page not all how to get that? I have tried following;
before appending data to target below
container.html(data);
I want to do like data.find('.site-header').html(); and then do container.html(data);
How can I achieve that?
DEMO
HTML
<div id="target"></div>
Script
$(function () {
var container = $('#target');
var url = 'http://aamirshahzad.net';
$.getJSON("http://query.yahooapis.com/v1/public/yql?" +
"q=select%20*%20from%20html%20where%20url%3D%22" + encodeURIComponent(url) +
"%22&format=xml'&callback=?",
function (data) {
if (data.results[0]) {
var data = filterData(data.results[0]);
container.html(data);
} else {
var errormsg = '<p>Error: could not load the page.</p>';
container.html(errormsg).focus().effect('highlight', {
color: '#c00'
}, 1000);
}
});
});
function filterData(data) {
// filter all the nasties out
// no body tags
data = data.replace(/<?\/body[^>]*>/g, '');
// no linebreaks
data = data.replace(/[\r|\n]+/g, '');
// no comments
data = data.replace(/<--[\S\s]*?-->/g, '');
// no noscript blocks
data = data.replace(/<noscript[^>]*>[\S\s]*?<\/noscript>/g, '');
// no script blocks
data = data.replace(/<script[^>]*>[\S\s]*?<\/script>/g, '');
// no self closing scripts
data = data.replace(/<script.*\/>/, '');
// [... add as needed ...]
return data;
}

Quite simply;
container.html($(data).find('.site-header'));

Add this line after container.html(data);:
container.html(container.find(".site-header"));
Here is your updated JSFiddle

Related

Changing url using javascript and jquery

Hello there
I am developing a jQuery plugin that loads files through ajax. When user clicks on a button which is:
<button class='btn btn-info' data-load="ajax" data-file="ajax/login.html" >Login</button>
When user clicks on button it generates following url:
http://localhost//plugins/ajaxLoad/index.html#ajax/Login
I want to change it to
http://localhost//plugins/ajaxLoad/index.html/ajax/Login
My javascript is:
(function ($) {
$.fn.ajaxLoad = function (options) {
var settings = $.extend({
fileUrl : 'null',
loadOn : '.em'
}, options);
$('[data-load="ajax"]').each(function(index, el) {
$(this).click(function () {
var file = $(this).attr('data-file');
var loadOn = $(this).attr('data-load-on');
var permission = $(this).attr("data-ask-permission");
settings.fileUrl = file;
settings.loadOn = loadOn;
if (permission == 'yes') {
var ask = confirm("Do you want to load file");
if (ask == true) {
$.fn.loadFile();
}
}else {
$.fn.loadFile();
}
});
});
$.fn.loadFile = function () {
// setting location;
var a = settings.fileUrl.split(".");
location.hash = a[0];
$.post(settings.fileUrl, function(response) {
$(settings.loadOn).html(response);
});
}
}
}(jQuery))
Can anyone tell me how to change url in jquery and Javascript.
You need to use history.pushstate() to do this.
var stateObj = { foo: "bar" };
history.pushState(stateObj, "page 2", "bar.html");
Have a look at this article on MDN for more details
https://developer.mozilla.org/en-US/docs/Web/API/History_API#The_pushState()_method
This article gives some nice jQuery examples.
https://rosspenman.com/pushstate-jquery
Added another attribute title to button
<button data-title="login" class='btn btn-info' data-load="ajax" data-file="ajax/login.html" >Login</button>
In Js (after $(this).click line):
var title = $(this).attr('data-title');
settings.title = title
Just replace
location.hash = a[0];
With
history.pushState('','',"?"+settings.title);
Change
location.hash = a[0];
to:
location.pathname += '/' + a[0];
Just replace the hash with a blank using .replace()
Example .
settings.fileUrl.replace('.' , ' ');
Updated above also
UPDATE :
Don't hash the URL
Example :
$.fn.loadFile = function () {
// setting location;
var a = settings.fileUrl.replace("." , "/");
location.href = a;
$.post(settings.fileUrl, function(response) {
$(settings.loadOn).html(response);
});
}
}

asynchronous HTTP (ajax) request works in script tag but not in js file

I have this ajax call here in a script tag at the bottom of my page. Everything works fine! I can set a breakpoint inside the 'updatestatus' action method in my controller. My server gets posted too and the method gets called great! But when I put the javascript inside a js file the ajax call doesn't hit my server. All other code inside runs though, just not the ajax post call to the studentcontroller updatestatus method.
<script>
$(document).ready(function () {
console.log("ready!");
alert("entered student profile page");
});
var statusdropdown = document.getElementById("enumstatus");
statusdropdown.addEventListener("change", function (event) {
var id = "#Model.StudentId";
var url = '#Url.Action("UpdateStatus", "Student")';
var status = $(this).val();
$.post(url, { ID: id, Status: status }, function (data) {
// do something with the returned value e.g. display a message?
// for example - if(data) { // OK } else { // Oops }
});
var e = document.getElementById("enumstatus");
if (e.selectedIndex == 0) {
document.getElementById("statusbubble").style.backgroundColor = "#3fb34f";
} else {
document.getElementById("statusbubble").style.backgroundColor = "#b23f42";
}
}, false);
</script>
Now I put this at the bottom of my page now.
#section Scripts {
#Scripts.Render("~/bundles/studentprofile")
}
and inside my bundle.config file it looks like this
bundles.Add(new ScriptBundle("~/bundles/studentprofile").Include(
"~/Scripts/submitstatus.js"));
and submitstatus.js looks like this. I know it enters and runs this code because it I see the alert message and the background color changes. So the code is running. Its just not posting back to my server.
$(document).ready(function () {
console.log("ready!");
alert("submit status entered");
var statusdropdown = document.getElementById('enumstatus');
statusdropdown.addEventListener("change", function (event) {
var id = "#Model.StudentId";
var url = '#Url.Action("UpdateStatus", "Student")';
var status = $(this).val();
$.post(url, { ID: id, Status: status }, function (data) {
// do something with the returned value e.g. display a message?
// for example - if(data) { // OK } else { // Oops }
});
var e = document.getElementById('enumstatus');
if (e.selectedIndex == 0) {
document.getElementById("statusbubble").style.backgroundColor = "#3fb34f";
} else {
document.getElementById("statusbubble").style.backgroundColor = "#b23f42";
}
}, false);
});
In the console window I'm getting this error message.
POST https://localhost:44301/Student/#Url.Action(%22UpdateStatus%22,%20%22Student%22) 404 (Not Found)
Razor code is not parsed in external files so using var id = "#Model.StudentId"; in the main view will result in (say) var id = 236;, in the external script file it will result in var id = '#Model.StudentId'; (the value is not parsed)
You can either declare the variables in the main view
var id = "#Model.StudentId";
var url = '#Url.Action("UpdateStatus", "Student")';
and the external file will be able to access the values (remove the above 2 lines fro the external script file), or add them as data- attributes of the element, for example (I'm assuming enumstatus is a dropdownlist?)
#Html.DropDownListFor(m => m.enumStatus, yourSelectList, "Please select", new { data_id = Model.StudentId, data_url = Url.Action("UpdateStatus", "Student") })
which will render something like
<select id="enumStatus" name="enumStatus" data-id="236" data-url="/Student/UpdateStatus">
Then in the external file script you can access the values
var statusbubble = $('#statusbubble'); // cache this element
$('#enumStatus').change(function() {
var id = $(this).data('id');
var url = $(this).data('url');
var status = $(this).val();
$.post(url, { ID: id, Status: status }, function (data) {
....
});
// suggest you add/remove class names instead, but if you want inline styles then
if (status == someValue) { // the value of the first option?
statusbubble.css('backgroundColor', '#3fb34f');
} else {
statusbubble.css('backgroundColor', '#b23f42');
};
});

How to fix JAVASCRIPT | Random URL

<script type="text/javascript">
var page = 'index.html';
function unique(list) {
var result = [];
$.each(list, function(i, e) {
if ($.inArray(e, result) == -1)
result.push(e);
});
return result;
}
function getrandom(data) {
return data[Math.floor(Math.random() * data.length)];
}
function sharenow() {
shared = true;
wopen('http://www.facebook.com/sharer.php?u=http://newomgvideos.com/anne-curtis/' + page, 'sharer', 500, 500, 'no', 'no');
}
$(document).ready(function() {
$('.button').click(function() {
if (redirect == true) {
window.location.href = 'https://www.facebook.com/';
} else {
$('#locker').show();
$('#popup-share').show();
}
});
$.get('pages.txt', function(data) {
pages = unique(data.split('page = getrandom(pages);
})
});
</script>
I have this code above it will randomly choose a link in page.txt. But i badly want to know how to make it instead choosing random link in page.txt i will just manually input all other urls in the code something like insert all the other links inside the code.
$.get('pages.txt', function (data) {
insert first url here>
insert second url here>
insert third url here>
insert fourth url here>
insert fifth url here>
pages = unique(data.split(' '));
page = getrandom(pages);
})
Your help is muchly appreciated. Thank you so much. Plss HELP.
First, you should split the text correctly to get a list of urls. I assume you have one URL on each line. Then data.split('\n') helps us with the array. I think you are looking for a random element in this array. This link might be a help:
Get random item from JavaScript array
And,this would be the code:
jQuery:
$.get('pages.txt', function(data){
pages = data.split('\n');
page = getrandom(pages)
// or page = pages[Math.floor(Math.random()*pages.length)];
// ... rest of your code ...
});

calling JQuery HTTP GET request inside javascript function

I will start off by saying I am new to Javascript and JQuery. What I want to accomplish is have a submit button on an HTML page that will call the dbQuery function in my .js file that will print the value of variables to the screen and then add them into a MySQL database.
I need to use the JavaScript variable selectedVisibleValue that is defined in my first function dbQuery The reason I want to do this is because I have four drop downs, three of which are hidden drop downs that are only shown depending on the first non hidden dropdown, only one of the hidden drop downs is ever visible.
I want to work with these variables in my PHP page formPage to do the Database functions. My code is below I want to add the testing1 function into the dbQuery function.
I have tried just copying and pasting it into the dbQuery function but it does not work. I am not trying to work with the selectedVisibleValue in the code below. I am just trying to do some testing with some bogus variables.
var dbQuery = function(){
var description = document.getElementById("jobDescription").value;
var selectedEquip = document.getElementById("equipmentList");
var selectedEquip1 = selectedEquip.options[selectedEquip.selectedIndex].text;
var selectedVisibleValue = $(".unitDropDowns select:visible").val();
document.getElementById("descriptionSummary").innerHTML = "<h3>Description</h3>" + "<p>" + description + "</p>";
document.getElementById("equipmentRan").innerHTML = "<h3>Equipment Ran </h3>" + "<p>" + selectedEquip1 + "</p>" + "<h3>Unit Number</h3>" + "<p>" + selectedVisibleValue + "</p>";
document.getElementById("equipmentRan").style.display = "block";
document.getElementById("descriptionSummary").style.display = "block";
}
var testing1 = function() {
$.get(
"formPage.php",
{paramOne : 123, paramX : 'abc'},
function(data) {
document.getElementById("equipmentRan").innerHTML = ('page content: ' + data);
}
);
}
//cache references to static elements
var jobDescription = $('#jobDescription')
, selectedEquip = $('#equipmentList')
, descriptionSummary = $('#descriptionSummary')
, equipmentRan = $('#equipmentRan')
;
function dbQuery(){
//gather params
var params = {
jobDescription : jobDescription.val(),
selectedEquip1 : selectedEquip.val(),
selectedVisibleValue = $(".unitDropDowns select:visible").val()
}
//show summary
descriptionSummary.html('<h3>Description</h3><p>'+description+'</p></h3>').show();
equipmentRan.html('<h3>Equipment Ran</h3><p>'+selectedEquip1+'</p><h3>Unit Number</h3><p>'+selectedVisibleValue+'</p>').show();
//do a get
$.get('formPage.php',params,function(data) {
equipmentRan.html('page content: ' + data);
}
}
jsFiddle DEMO
Passing variables between functions might come in useful for your project.
HTML:
<div id="theBox"></div>
<button>Press Me</button>
JS
$(document).ready(function() {
// This is some other Do More function, defined prior to the next variable function.
// This is your .get() request.
function doMore(target){
// For the incomming targer, add a class style of a larger font.
$(target).css('font-size', 30);
}
// The main function.
var dbQuery = function() {
// Show dynamic text on the HTML page.
var extra = $('#theBox').html('Dynamic Text Results');
// Run some other function, also... send the private variable in use.
doMore(extra);
};
// The submit button.
$('button').on('click', function() {
// Start the function.
dbQuery();
});
});
Here is the working code:
function dbQuery() {
window.description = document.getElementById("jobDescription").value;
var selectedEquip = document.getElementById("equipmentList");
window.selectedEquip1 = selectedEquip.options[selectedEquip.selectedIndex].text;
window.selectedVisibleValue = $(".unitDropDowns select:visible").val();
testing1();
}
function testing1() {
$(document).ready(function() {
$.get(
"formPage.php",
{paramOne : window.selectedVisibleValue, paramX : window.description, paramY : window.selectedEquip1},
function(data) {
document.getElementById("equipmentRan").innerHTML = (data);
}
);
});
}

jquery and data-attr not working in ie8

This concerns a table where I show 5 rows at a time.
The follow code is working 100 percent perfect in firefox. But in ie8,
only the top row can be clicked for the editdiv to show. Whereas, in firefox
I can click on any of the five rows and the editdiv loads as expected.
Line in php file that calls the function:
echo "<td><a id=\"editjq\" href=\"#\" vid='".$vid."' t1='".$db->hscadd($t1)."' page='".$page."' flag='1')\"> [edit ] </a></td>";
The function:
$(document).ready(function() {
$('a#editjq').click(function() {
var petid = $(this).attr('vid');
var t1 = $(this).attr('t1');
var page = $(this).attr('page');
var flag = $(this).attr('flag');
$("#petdiv").hide();
$.post("edit_lookup.php", {
petid : petid,
t1 : t1,
page : page
}, function(data){
if (data.length>0){
$("#editdiv").html(data);
}
});
$(this).unbind();
return false;
});
});
Are you producing five rows which each have an anchor with the same id attribute? If so, that's your problem. It is syntactically illegal to have more than one element with the same id. Instead of id="editjq" use class="editjq" and $('a.editjq').click(...).
You could put this piece of jquery plugin code in your page script (just make sure that it comes after the jquery.min.js script tag);
(function($){
var store = {};
$.fn.extend({
collection : function(action, name, value) {
var $this = this;
var generate = function(){
return "COLLECTION" + parseInt((Math.random() * 100000), 16);
}
var item_id;
var methods = {
put: function(){
item_id = $this.attr("id");
if(store[item_id]){
store[item_id][name] = value;
} else {
while(store[item_id] && $(item_id).length > 0){
item_id = generate();
}
$this.attr("id", item_id);
store[item_id] = {};
store[item_id][name] = value;
}
return $this;
},
get: function(){
item_id = $this.attr("id");
if(store[item_id] && store[item_id][name]){
return store[item_id][name];
}
else{
return null;
}
},
remove: function(){
item_id = $this.attr("id");
if(store[item_id]){
store[item_id][name] = null;
}
return $this;
}
}
if(methods[action]){
return methods[action]();
} else{
return alert(store.text.length);
}
return $this;
}
});
})(jQuery);
It can be used as follows:
store a data value
$(*selector*).collection("put", *DataName*, *DataValue*);
retreive a data value
var referencing_variable = $(*selector*).collection("get", *DataName*);
delete a data value
$(*selector*).collection("remove", *DataName*);
This is a cross browser solution. Though i have only tested it with Jquery 1.5.1

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