I got some troubles working on javascript for an Firefox OS app, so I hope anyone can help me.
The case is I append some images from javascript (see code)
var aux = "<img class=\"imageOn\" id=\"" + imageName + "\"" + "src:\"" + imageURL + "\" >";
var image = "<a class=\"imageOn\" href=\"#\"> " + aux + " </a>";
$("#categoriasList").append(image);
$('#'+imageName).attr('src',imageURL);
And now I want to select one of these images from another js file:
$("img.imageOn").bind('click', function(e) {
console.log($(this).attr('id'));
playText($(this).attr('id'),"es");
// Change to picturesView
// Load icons from category choosed
});
The point is that actually it isn't working, the event is not triggered, so apendding or selecting the images has to be wrong, but I don't find the error. Does anyone know how to fix it?
Thank you in advanced.
Your src attribute should be followed by a = not a :
"<img class=\"imageOn\" id=\"" + imageName + "\"" + "src=\"" + imageURL + "\" >";
This
"src:\"
Should probably be
"src=\"
You need a = instead of : in your src. Try this:
"<img class=\"imageOn\" id=\"" + imageName + "\"" + "src=\"" + imageURL + "\" >";
If your are using jQuery you can use following method.
var aux= $(document.createElement('img')).attr(
'id':imageName,
'src':imageURL,
'class':'imageOn'
),
image = $(document.createElement('a')).attr({
'class':'imageOn'
'href':'#',
});
image.html(aux);
$("#categoriasList").append(image);
And after appending you can attach event handler. If you attaching without creating actual element it will not be triggered. It means if you want to attach event handler in the different file you should be sure that all elements already created. Otherwise there will not be triggered.
I fixed it using the event handler "on" of query
Related
Hey guys I'm having an issue with the syntax of providing a parameter for a function that I call on an onclick event inside a div.
I can get the function open_email() to call but not when I add a parameter since the parameter I am looking to add is obtained from another form element and I'm not sure how to type it properly.
Below is my code. Please let me know if you know how it should be written. I'm currently getting nothing to happen unless I keep the parameters (arguments) blank.
To clarify, I need to know how to add emails[index].id as an argument for the function below that is called open_email(). What is the proper syntax? I tried : open_email(emails[index].id) and open_email("emails[index].id")
for (index = 0; index < emails.length; index++) {
if (emails[index].read == false) {
element.innerHTML += '<div class="emails unread" onclick="open_email();">' + "From:" + JSON.stringify(emails[index].sender) +
"<p class='subject'>" + "Subject: " + JSON.stringify(emails[index].subject) + "</p>" + JSON.stringify(emails[index].timestamp) + '</div>';
} else {
element.innerHTML += '<div class="emails">' + "From:" + JSON.stringify(emails[index].sender) +
"<p>" + "Subject: " + JSON.stringify(emails[index].subject) + "</p>" + JSON.stringify(emails[index].timestamp) + '</div>';
}
Yes, you can. You need to send an arrow function there. Try to click on the text "Initial Content".
I do not have your open_email function, so I made up one as an example.
Basically, onclick will execute () => open_email(emailIndexId):
<div id="text">Initial Content</div>
<script>
textDiv = document.getElementById('text');
const open_email = id => {
textDiv.innerText = "Sent email to " + id;
}
const emailIndexId = 33;
textDiv.onclick = () => open_email(emailIndexId) // IMPORTANT
</script>
I have 6 images in PHP page.
Below each image there is button named print.
Now how to give command in PHP or Javascript to the button so that when it is clicked print window is there with only respective image (not whole HTML)
My button:
<button type='print'>Print<\button>
You can try this way
<script type="text/javascript">
function ImagetoPrint(source) {
return "<html><head><script>function step1(){\n" +
"setTimeout('step2()', 10);}\n" +
"function step2(){window.print();window.close()}\n" +
"</scri" + "pt></head><body onload='step1()'>\n" +
"<img src='" + source + "' /></body></html>";
}
function PrintImage(source) {
Pagelink = "about:blank";
var pwa = window.open(Pagelink, "_new");
pwa.document.open();
pwa.document.write(ImagetoPrint(source));
pwa.document.close();
}
PRINT
You can use JS libraries like
http://projects.erikzaadi.com/jQueryPlugins/jQuery.printElement/
$('img#some_id').printElement();
In this function, the value parameter is being passed down to fill in my URL. This works perfectly.
function showResults(results) {
var html = '';
$.each(results, function(index,value) {
html += '<li><img src="' + value.snippet.thumbnails.medium.url + '">' + value.snippet.title + '(More from ' + value.snippet.channelTitle + ')</li>';
});
$('#results').html(html);
}
In this nearly identical function, the value param loses its value. I can't see how. It's difficult to debug why this is happening because console.log() just returns "ReferenceError: $ is not defined" no matter what I check (it returns this in the first section too, which works well).
function showResults(results) {
var html = '';
$.each(results, function(index,value) {
html += '<li><img src="' + value.snippet.thumbnails.medium.url + '">' + value.snippet.title + ') </li>';
});
$('#results').html(html);
$('#results li a').click(function(){
playVid($(this).attr(value.id.videoId));
});
}
function playVid(vidID) {
var embedVid = 'https://www.youtube.com/embed/'+vidID+'?autoplay=1';
document.getElementById('player').src = embedVid;
}
Here I'm trying to push the value param (in the url again) to an iframe with id="player". The iframe receives an invalid param and the video won't play. Meanwhile the video plays in the first example. Where does value get lost?
value only exists within the scope of the each loop. So, first fix your reference error, and then I suggest the following changes in that second example:
1) Update the href with the videoId value in the each loop like in the first example:
<a href="https://www.youtube.com/watch?v=' + value.id.videoId + '">
2) And then launch the player with that value:
$('#results li a').click(function(e) {
e.preventDefault();
playVid($(this).attr('href'));
});
I want to create something like Facebook wall. Currently I am getting the data in a json format and displaying using jQuery $each and then appending it to the main div. I am looking for an alternative way of doing this.
The problem in the current code is that i cannot use the div class to call any method like on.click . The on.click method need to be inside the $each to be get called and it gets called the number of object present in data.
And if i want to update the wall then i need to update the data and has to refresh the whole structure. Is there any other way by which i can add the new post to the wall without rebuilding the structure.
$.each(data, function () {
var status_id = this['Id'];
var like_id = "like" + status_id;
var commennt_id = "commnet-tem" + status_id;
var likes = 0;
$("<div class=\"post-indi\" id=\"post-item" + status_id + "\">" +
"<div class=\"post-content\">" +
" <div class=\"status-profile\" >" +
"<img src="">" +
"</div>" +
"<div class=\"content\">" + this['status'] + "</div>" +
"</div>" +
"<div class=\"commentbox-info\">" +
"<a id=\""+like_id+"\" href=\"#\" class=\"postddlike\">Like</a><img </div></div>").appendTo("div.post");
I have the part of the jquery code
success: function(results) {
if (results.d.Product.length > 1) {
var html = '<h3>' + results.d.Product+ '<h3>'
+ '<div>' + results.d.ProductDescription + '</div>'
+ '**' + results.d.Url + '';**
$(test).html(html);
}
I need to add a absolute address eg. http://comcast.net
How can I do that.
Thanks,
SA
Your code doesn't escape the values (unless that's done on the server).
It would be better done like this:
$(test)
.empty()
.append($('<h3 />').text(results.d.Product))
.append($('<div />').text(results.d.ProductDescription))
.append(
$('<a />')
.attr('href', "http://yourdomain.tld/" + results.d.Url)
.text(results.d.Url)
);
I assume that this is what you're trying to do. Note that you might need to remove the / from the domain name string if the URL from the server already has it.