Develop Reference

How to hard code text which are coming from javascript messages

Our application is been internationalized and being changed to different languages. For that reason we have to hard code all the messages. How can we do that for messages in javascript ?
This is how we are doing in html messages.
<span th:text="#{listTable.deletedFromTable}">deleted</span>
How do we hard code for javascript messages.(update the table)
$('#TableUpdate-notification').html('<div class="alert"><p>Update the Table.</p></div>');

You will need to put the messages in the DOM from the start, but without displaying them. Put these texts in span tags each with a unique id and the th:text attribute -- you could add them at the end of your document:
<span id="alertUpdateTable" th:text="#{listTable.updateTable}"
style="display:none">Update the Table.</span>
This will ensure that your internationalisation module will do its magic also on this element, and the text will be translated, even though it is not displayed.
Then at the moment you want to use that alert, get that hidden text and inject it where you need it:
$('#TableUpdate-notification').html(
'<div class="alert"><p>' + $('#alertUpdateTable').html() + '</p></div>');
You asked for another variant of this, where you currently have:
$successSpan.html(tableItemCount + " item was deleted from the table.", 2000);
You would then add this content again as a non-displayed span with a placeholder for the count:
<span id="alertTableItemDeleted" th:text="#{listTable.itemDeleted}"
style="display:none">{1} item(s) were deleted from the table.</span>
You should make sure that your translations also use the placeholder.
Then use it as follows, replacing the placeholder at run-time:
$successSpan.html($('#alertTableItemDeleted').html().replace('{1}', tableItemCount));
You could make a function to deal with the replacement of such placeholders:
function getMsg(id) {
var txt = $('#' + id).html();
for (var i = 1; i < arguments.length; i++) {
txt = txt.replace('{' + i + '}', arguments[i]);
}
return txt;
}
And then the two examples would be written as follows:
$('#TableUpdate-notification').html(
'<div class="alert"><p>' + getMsg('alertUpdateTable') + '</p></div>');
$successSpan.html(getMsg('alertTableItemDeleted', tableItemCount));

Javascript: Add HTML to string - make a link and add it to output

New to javascript, how do I fix this problem I'm having?
I want to add an a tag to a string variable that i'm creating using a function.
The whole message (eg - "Your tutor is JOHN DOE. Contact them here: CONTACT FORM") Is added to the DOM with another function (which works).
When I run the script it outputs to the browser but the second part (makeLink()) doesnt work.
This is what I get: "Your tutor is JOHN DOE. Contact them here http://www.example.com" - Instead of the URL I want word CONTACT FORM which should be a link.
How do I do this?
I tried using link() Method, which also didnt work and had similar output.
I'll only include the relevant script below, the rest works fine...
function makeMessage(){
for(i in msgArr){
stringMSG += msgArr[i];
//do not add a comma after last item
if(i < msgArr.length - 1){
stringMSG += ', ';
}
}
var highRiskmsg = "Your tutor is " + stringMSG + ". Contact them here" + makeLink();
return highRiskmsg;
}
function makeLink() {
var contactLink = document.createElement("a");//create <a> tag
contactLink.setAttribute("id", "linkC");//set id att for <a> tag
contactLink.setAttribute("href", "http://www.example.com/contact.php");//set id att for <a> tag
var contactLinkTxt = document.createTextNode("CONTACT FORM");//new text node
contactLink.appendChild(contactLinkTxt);//append text as child of <a> tag
return contactLink;
}

It seems the problem is you are returning a DOM element from your makeLink() function, and this won't concat with the string as you expect.
You need to return a valid HTML string instead, such as: <a id=".." href="..">..</a>
The quickest way to fix your code would be just to change the return for the makeLink() function as follows:
return contactLink.outerHTML;
Using outerHTML will return the HTML string for the element, rather than the element itself.
Here is a working example

As an alternative to musefan's answer, you can return an element that contains both the message and link as nodes, instead of text.
function makeMessage(){
var highRiskmsg = "Your tutor is " + msgArr.join(',') + ". Contact them here";
var span = document.createElement('span');
span.appendChild(document.createTextNode(highRiskmsg));
span.appendChild(makeLink());
return span;
}
Fiddle

How to display <input type=''text'> without creating a textbox in jquery?

I have a comment box(textarea) in which the user types something and when he hits enter that thing is automatically displayed in 'comment section'. Now when the user hits submit I'm executing the following code,
var comment = $("#commentBox").val();
var commentSection = $("#commentSection");
comment.appendTo(commentSection);
By the above code the comment typed by user is dynamically displayed in the commentSection. This works fine but when user types something like,
<input type='text'>
in the comment box then a textbox is created within the comment section. So is there a way through which I could not let this happen?
Thanks in advance.

One way would be to just append the data as .text
Something like this:
var comment = $("#commentBox").val();
var commentSection = $("#commentSection");
commentSection.text(comment);
Edit: To append to an existing part of the comment, replace:
commentSection.text(comment);
with:
commentSection.text(commentSection.text() + comment);

You have to convert the string to entities. Define this function:
function htmlencode(str) {
return str.replace(/[&<>"']/g, function($0) {
return "&" + {"&":"amp", "<":"lt", ">":"gt", '"':"quot", "'":"#39"}[$0] + ";";
});
}
Then run the following code when the user hits enter:
var comment = htmlencode($("#commentBox").val());
var commentSection = $("#commentSection");
comment.appendTo(commentSection);

Try this ,
div.insertAdjacentHTML( 'beforeend', comment);

You can use
var commentText = $("#commentBox").text();
but this do not clean html tags on your string, additionally you can use a function to do this
function RemoveHTMLTags(vals) {
var regX = /(<([^>]+)>)/ig;
var html = vals;
return (html.replace(regX, ""));
}
and then you use:
var finalComment = RemoveHTMLTags(commentText);

jQuery: trying hook a function to the onclick when page loads

I have seen a similar question, HERE and have tried that, but I can't seem to get it working.
Here is my code for dynamically generating table rows.
for (var contribution = 0; contribution < candidate.contributions.length - 1; contribution++) {
var id = candidate.contributions[contribution].donor_id;
var uid = candidate.contributions[contribution].user_id;
$("#history-table").append(
"<tr onclick='" + parent.viewEngine.pageChange('public-profile', 1, id, uid) + ";>" +
"<td class='img-cell'>" +
"<img class='profile-avatar-small' src='/uploads/profile-pictures/" +
candidate.contributions[contribution].image + "' alt='' /></td><td class=''>" +
"<h2>" + candidate.contributions[contribution].firstname +
" " + candidate.contributions[contribution].lastname + "</h2></a><br/><br/>" +
"<span class='contribution-description'>" + candidate.contributions[contribution].contribution_description + "</span></td>" +
"<td><h3>$" + formatCurrency(candidate.contributions[contribution].contribution_amount) + "</h3></td></tr>");
}
This still executes the click event as soon as the page loads, which is not the desired behavior. I need to be able to click the tr to execute the click event.

Pass the whole thing as a string:
"<tr onclick='parent.viewEngine.pageChange(\'public-profile\', 1, " + id + ", " + uid + ");>" // + (...)
But, as you are using jQuery, you should be attaching the click handler with .on().

(I really don't recommend using inline event handlers like that, especially when you're already using jQuery, but anyway...)
The problem is that you need the name of the function to end up in the string that you are passing to .append(), but you are simply calling the function and appending the result. Try this:
...
"<tr onclick='parent.viewEngine.pageChange(\"public-profile\", 1, " + id + "," + uid + ");'>" +
...
This creates a string that includes the name of the function and the first couple of parameters, but then adds the values of the id and uid variables from the current loop iteration such that the full string includes the appropriately formatted function name and parameters.
Note that the quotation marks around "public-profile" were single quotes but that wouldn't work because you've also used single quotes for your onclick='...', so you should use double-quotes but they need to be escaped because the entire string is in double-quotes.

I'm wondering if you might be better simplifying things a bit.
If your rows are being dynamically added, then try putting some kind of meta-data in the <tr> tag, e.g. something like this:
<tr id="id" name="uid">
Then try the following with your jQuery (v.1.7 required):
$('#history-table tr').on('click', function(){
parent.viewEngine.pageChange('public-profile', 1, this.id, this.name);
});
This will likely require modification depending on how your page rendering works but it's a lot cleaner and easier to read having been removed from your main table markup.

Well that's because you're executing the function, not concatenating it. Try:
onclick='parent.viewEngine.pageChange("public-profile", 1, id, uid);'

Take this ->
$("#contribution-" + uid).click(function(){
parent.viewEngine.pageChange('public-profile',1, id, uid);
});
And do two things:
1) Move it outside of the 'for' statement
As soon as the for statement is executed, the click function will be executed as well. The click function is not being supplied as a callback function in this for statement.
2) Change it to ->
$("tr[id^='contribution-'").on('click', function(){
var idString = $(this).attr("id").split("-"); //split the ID string on every hyphen
var uid = idString[1]; //our UID sits on the otherside of the hyphen, so we use [1] to selec it
//our UID will now be what we need. we also apply our click function to every anchor element that has an id beginning with 'contribution-'. should do the trick.
parent.viewEngine.pageChange('public-profile',1, id, uid);
});
This is my solution.

How to include javascript generated text into html link?

I have a javascript that displays a generated text into a div:
document.getElementById('phrase').innerHTML = phrase;
PHRASE_TEXT_GETS_SHOWN_HERE
Basically I'm trying to set up a link that will take the text and post it to twitter with a link:
Clicky for tweety
How can I include the generated text in the link?

Do you mean like:
function setPhrase(phrase) {
var url = 'http://twitter.com/home?status=' + encode(phrase);
$('#phrase').html('' + phrase + '');
}
...?
Un-jQuerying it should be straightforward enough, if that's how you roll.
This is un-jQueried:
function setPhrase(phrase) {
var url = 'http://twitter.com/home?status=' + encodeURI(phrase);
document.getElementById('phrase').innerHTML = '' + phrase + '';
}
If you didn't see my failbraining encode for encodeURI as an error you should use Firebug. It may also fail if you have more than one element with the id phrase or if you have no elements with the id phrase.