im currently working on a simple todo list. I store the tasks in cookies and when the web page reloads i retrieve my previous tasks from the cookies. However i cannot save there my tasks as completed, i.e. the tasks that i marked as complete.
function toHTML(id, text) {
return '<div class="todo" id="' + id + '">' +
'<div id="' + cbid + '"><input type="checkbox" class="check_todo" name="check_todo"/></div>' +
'<div class="todo_description" contentEditable = "true">' +
text +
'</div>' +
'<img src = "sun-icon.gif" class="close" title = "Delete the Task" />' +
'</div>';
}
When i press checkbox the div with class = "todo" gets class = "checked" and the text (todo_description) inside this div becomes crossed, also the div with class="todo" itself gets another color.
$('#item-' + counter +' .check_todo').unbind('click');
$('#item-' + counter +' .check_todo').click( function() {
var todo = $(this).parent().parent();
todo.toggleClass('checked');
});
When i reload the page i see my previous tasks but not completed tasks, because i retrieve from cookies only text:
function get_cookies_array(){
var cookies = { };
if (document.cookie && document.cookie != '') {
var split = document.cookie.split(';');
for (var i = 0; i < split.length; i++) {
var name_value = split[i].split("=");
name_value[0] = name_value[0].replace(/^ /, '');
cookies[decodeURIComponent(name_value[0])] = decodeURIComponent(name_value[1]);
}
}
return cookies;
}
//here i display my tasks
var cookies = get_cookies_array();
var i = 0;
for(var name in cookies) {
$('.todo_list').prepend(toHTML('item-' + (i++), cookies[name]));
}
I tried to check for the class "checked" like
if $(cookies[name]).hasClass('checked')
{ make stylings for this div}
but this doesnt work, i need to check for div with class = "todo" which becomes "todo checked" when i press checkbox.
I'd appriciate if someone could help me!
if you want to check if checkbox is checked you can try :
$('#id_checkbox').is(':checked');
if you want to get your cookie without reloading your page you can setTimeout between the set and the get of cookiees
Related
to summarize my problem ... I have made a calendar with contains the from - to date range. Now the selected dates are displayed in a div with a delete button for each. But as the id of the button is the same for all the dates ....it deletes the entire date range. I have attached the screenshot as well.
I also tried taking a loop and giving each date a div so that the Del function will work properly. but I wasn't successful. I will mention code for the same
$(document).ready(function () {
var i = 0;
$.each(between, function (key, value) {
var rest = $('#target').append($('<div id="r' + i +value+ '" class="ansbox">
</div>'));
console.log(between);
var template = '<div id="ChildTarget_' + i + '"><span>key + ":" + "' + value + '"
</span><button id="tr' + i + '" class="target">X</button></div><br></div>';
i++;
$('#target').on('click', function () {
console.log("hola");
$('#target').remove();
You should add click event for the button itself.
var template = `
<div id="ChildTarget_' + i + '">
<span>key + ":" + "' + value + '"</span>
<button id="tr' + i + '" class="deleteButton">X</button>
</div>`;
$(".deleteButton').on('click', function() {
// do deletion here
});
First of all ,
The 'X' button should have different id
$.each(between, function (key, value){
$('#results').append(key+":"+value+'<br>');
$('#results').html(between.join('<button id="result"+key+"" > X </button><br>')
here you can see i am adding key to the Button Id making it unique. Use that id to remove the value, that you dont want. Hope this helps
So, I am building some sort of e-commerce website and I needed to import a bunch of products from a mysql database, using nodejs and ajax.
I've been able to get that so far, aswell as creating certain buttons below each product that will lead to a /product page where additional information will be displayed of that exact product.
Since those buttons were not dynamic, I had the need to add an attribute, which will contain the products ID, which I will then use to send a POST request to the server so I can get the information about that specific product.
And although I was able to add the attribute to the buttons themselves, I have no idea how to get their value.
This is how I added my attributes to the buttons.
$(function () {
$.ajax({
type: 'POST',
url: '/getPacotes',
success: function (data) {
for (var i = 0; i < data.length; i++) {
var idPacote = data[i].idPacote;
var nomePacote = data[i].Nome_Pacote;
var precoPacote = data[i].Preco_Pacote;
var fornecedorPacote = data[i].Fornecedor_Pacote;
var foto = "https://webitcloud.net/PW/1617/RMR/Views/images/Pacotes/" + data[i].Foto;
var pacoteSet1 = "<div class='col-md-4 pacotes'>";
var pacoteSet2 = "<img src=" + foto + " alt='Mountain View' style='width:150px;height:150px;'><br><br><input id=btnPac" + i + "' type='button' name='comprar' value='Comprar Pacote'>";
var pacoteSet3 = "</div>";
$("#pacotes").append(pacoteSet1 + "<h1>" + nomePacote + "</h1>" + "<h2>" + fornecedorPacote + "</h2>" + "<h3>" + precoPacote + "euros/mes </h3>" + pacoteSet2 + pacoteSet3);
$(document).find("#btnPac" + i).attr({
"idPacote": idPacote
});
}
}
});
});
And this is how I was trying to get their attributes
$("button").each(function () {
console.log(this.idPacote);
$.post("http://localhost:3000/pacote?id=" + this.idPacote);
});
But it doesn't seem to work
idPacote returns undefined and I have no idea why, because I simply give the buttons an "id" and replace the idPacote with the "id" itself, it will return the buttons ID
Sorry if the question sounds dumb. I am not very experienced in these matters.
When you are using jQuery I would suggest you to use the HTML5 data attribute in order to set a specified attribute to a HTML element:
<button data-id="1"></button>
You can set and access it using jQuery:
$('button').data('id', value); //set data-id
$('button').data('id'); //Read data-id
Furthermore change
<input id=btnPac" + i + "' type='button' name='comprar' value='Comprar Pacote'>
to
<button name='comprar'>Comprar Pacote</button>
in order to get elements from $('button')
I have a dropdown whose options get filled dynamically:
function populateDropdown(dropdownNum) {
// invokeWebService uses $.ajax
json = invokeWebService("GET", "/webservice/dropwdownOptions");
optionsHtml = "";
$.each(json, function(count, jsObj) {
optionValue = jsObj.name
optionsHtml+="<option>" + optionValue + "</option>";
});
var dropdownId = "#NRdropdown_" + dropdownNum;
$(dropdownId).html(optionsHtml);
}
function display(blockNum) {
var url = "/webservice/blocks" + blockNum;
var response = invokeWebService("GET", url);
var replacementHtml = "";
var currBlock = "blah";
$.each(response, function(i, block) {
currName = block.name;
var textfield = "<input type='text' id='blockValue" + block.id +
"'>";
var dropdownMenu = "<select id=\"NRdropdown_" + i +
"\"onClick=\"populateDropDown(" + i +
")\"><option>Existing Blocks</option>"
var submitButton = "<input type='submit' value='UPDATE' id='" +
block.id + "'><br><br>";
replacementHtml = currName + textfield + dropdownMenu + submitButton;
});
$("#main").html(replacementHtml);
}
The javascript function "populateDropdown(dropdownNum)":
Makes the ajax request
Parses the json response for the option values into an html string called optionsHtml
Replaces the inner html of the select element with the option values via:
var dropdownSelector = "#NRdropdown_" + dropdownNum;
$(dropdownSelector).html(optionsHtml)
1) When I click on the dropdown arrow, I STILL see "Existing Blocks".
2) After 1 sec I see the first dynamically generated option UNDERNEATH the "Existing Blocks" option, I don't see the other dynamically generated options.
3) Then I click outside the dropdown and see the dropdwon showing the first dynamically generated value.
4) Finally I click the dropdown arrow again and it works as it should with all the dynamically generated values.
How do I make it work so that:
When the page first loads, the dropdown shows "Existing Blocks".
Once I click the dropdown arrow, the dropdown should show all dynamically generated values without the "Existing Blocks" value.
Thanks!
the dropdown listener should be for onmousedown, not onclick
I have created a html like this:
<body onload = callAlert();loaded()>
<ul id="thelist">
<div id = "lst"></div>
</ul>
</div>
</body>
The callAlert() is here:
function callAlert()
{
listRows = prompt("how many list row you want??");
var listText = "List Number";
for(var i = 0;i < listRows; i++)
{
if(i%2==0)
{
listText = listText +i+'<p style="background-color:#EEEEEE" id = "listNum' + i + '" onclick = itemclicked(id)>';
}
else
{
listText = listText + i+ '<p id = "listNum' + i + '" onclick = itemclicked(id)>';
}
listText = listText + i;
//document.getElementById("lst").innerHTML = listText+i+'5';
}
document.getElementById("lst").innerHTML = listText+i;
}
Inside callAlert(), I have created id runtime inside the <p> tag and at last of for loop, I have set the paragraph like this. document.getElementById("lst").innerHTML = listText+i;
Now I am confuse when listItem is clicked then how to access the value of the selected item.
I am using this:
function itemclicked(id)
{
alert("clicked at :"+id);
var pElement = document.getElementById(id).value;
alert("value of this is: "+pElement);
}
But getting value as undefined.
Any help would be grateful.
try onclick = itemclicked(this.id) instead of onclick = 'itemclicked(id)'
Dude, you should really work on you CodingStyle. Also, write simple, clean code.
First, the html-code should simply look like this:
<body onload="callAlert();loaded();">
<ul id="thelist"></ul>
</body>
No div or anything like this. ul and ol shall be used in combination with li only.
Also, you should always close the html-tags in the right order. Otherwise, like in your examle, you have different nubers of opening and closing-tags. (the closing div in the 5th line of your html-example doesn't refer to a opening div-tag)...
And here comes the fixed code:
<script type="text/javascript">
function callAlert() {
var rows = prompt('Please type in the number of required rows');
var listCode = '';
for (var i = 0; i < rows; i++) {
var listID = 'list_' + i.toString();
if (i % 2 === 0) {
listCode += '<li style="background-color:#EEEEEE" id="' + listID + '" onclick="itemClicked(this.id);">listItem# ' + i + '</li>';
}
else {
listCode += '<li id="' + listID + '" onclick="itemClicked(this.id);">listItem# ' + i + '</li>';
}
}
document.getElementById('thelist').innerHTML = listCode;
}
function itemClicked(id) {
var pElement = document.getElementById(id).innerHTML;
alert("Clicked: " + id + '\nValue: ' + pElement);
}
</script>
You can watch a working sample in this fiddle.
The problems were:
You have to commit the id of the clicked item using this.id like #Varada already mentioned.
Before that, you have to build a working id, parsing numbers to strings using .toString()
You really did write kind of messy code. What was supposed to result wasn't a list, it was various div-containers wrapped inside a ul-tag. Oh my.
BTW: Never ever check if sth. is 0 using the ==-operator. Better always use the ===-operator. Read about the problem here
BTW++: I don't know what value you wanted to read in your itemClicked()-function. I didn't test if it would read the innerHTML but generally, you can only read information from where information was written to before. In this sample, value should be empty i guess..
Hope i didn't forget about anything. The Code works right now as you can see. If you've got any further questions, just ask.
Cheers!
You can pass only the var i and search the id after like this:
Your p constructor dymanic with passing only i
<p id = "listNum' + i + '" onclick = itemclicked(' + i + ')>
function
function itemclicked(id)
{
id='listNum'+i;
alert("clicked at :"+id);
var pElement = document.getElementById(id).value;
alert("value of this is: "+pElement);
}
is what you want?
I am not sure but shouldn't the onclick function be wrapped with double quotes like so:
You have this
onclick = itemclicked(id)>'
And it should be this
onclick = "itemclicked(id)">'
You have to modify your itemclicked function to retrieve the "value" of your p element.
function itemclicked( id ) {
alert( "clicked at :" + id );
var el = document.getElementById( id );
// depending on the browser one of these will work
var pElement = el.contentText || el.innerText;
alert( "value of this is: " + pElement );
}
demo here
I have a div containing a group of divs.
I want the divs inside to work as links that move to another page after saving this link's value.
The div consists of the id in the div attribute, & the name in the div's value as follows:
Html:
<div id="ClasssesList" ></div>
jQuery:
function GetClassesList(data) {
var classes = (typeof data) == 'string' ? eval('(' + data + ')') : data;
$('#ClasssesList').empty();
for (var i = 0; i < classes.length; i++) {
var text = '<button class="BigDiv" value="' + classes[i].Cls_ID + '" >' + classes[i].Cls_Name + '</button>';
$('#ClasssesList').append(text);
}
}
I want to save the value of the clicked id in a localStorage then move to the next page:
I tried to make it as follows, but it doesn't seem to be working:
$("#ClasssesList").bind('click', 'button.BigDiv',CallLink());
function CallLink(e) {
localStorage['ClassID'] = $('Button.BigDiv').attr('value');
window.location.replace("Teacher_Attendance.htm");
}
Do you know what should I do to let it work ?
function CallLink(e) {
localStorage.setItem('ClassID', $('Button.BigDiv').attr('value'));
window.location.replace("Teacher_Attendance.htm");
}
And to get that item try:
localStorage.getItem('classID');
Format to set data to localStorage is
localStorage.setItem(key, value);
here value is string format;
you will get more here Microsoft, Mozilla and Apple.
And one note
I think your bind function
$("#ClasssesList").bind('click', 'button.BigDiv',CallLink())
should be written as
$("#ClasssesList").on('click', 'button.BigDiv',CallLink())