line breaks or pharagraph not working in textarea output? for example i am using enter for pharagraph in textarea but not working in output? How can i do that?
$("#submit-code").click(function() {
$("div.output").html($(".support-answer-textarea").val());
}).next().click(function () {
$(".support-answer-textarea").val($("div.output").html());
});
.support-answer-textarea{width:100%;min-height:300px;margin:0 0 50px 0;padding:20px 50px;border-top:1px solid #deddd9;border-bottom:1px solid #deddd9;border-left:none;border-right:none;box-sizing:border-box;letter-spacing:-1px;}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<textarea id="support-answer-textarea" class="support-answer-textarea" placeholder="Destek Konusunu Cevapla!"></textarea>
<button type="submit" id="submit-code" class="btn btn-success">Submit Your Code</button>
<div class="output"></div>
The best and easy way to fix line breaks on the output use these simple css:
.support-answer-textarea {
white-space: pre-wrap;
}
When you hit enter in a <textarea>, you're adding a new line character \n to the text which is considered a white space character in HTML. HTML generally converts the sequence of all white spaces to a single space. This means that if you enter a single or a dozen of whitespace characters (space, new line character or tab) in a row, the only effect in resulting HTML is just a single space.
Now the solution. You can substitute the new line character (\n) to <br> or <p> tag using replace() method.
$("#submit-code").click(function() {
$("div.output").html($(".support-answer-textarea").val().replace(/\n/g, "<br>"));
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<textarea id="support-answer-textarea" class="support-answer-textarea"></textarea>
<button type="submit" id="submit-code">Submit Your Code</button>
<div class="output"></div>
for me, I had a e.preventDefault() for only Enter keypress on a parent element, this prevents a new line from adding.
If you are capturing an input from a textarea, sending it via ajax (saving to database, e.g. mysql) and then want to display the result in a textarea (e.g. by echoing via php), use the following three steps in your JS:
#get value of textarea
var textarea_value = $('#id_of_your_textarea').val();
#replace line break with line break input
var textarea_with_break = textarea_value.replace(/(\r\n|\n|\r)/gm, '
');
#url encode the value so that you can send it via ajax
var textarea_encoded = encodeURIComponent(textarea_with_break);
#now send via ajax
You can also perform all of the above in one line. I did it in three with separate variables for easier readability.
Hope it helps.
Posting this here as it took me about an hour to figure this out, fumbling together the solutions from the answers below (see for more details):
The .val() of a textarea doesn't take new lines into account
New line in text area
URL Encode a string in jQuery for an AJAX request
Related
By default, the tinymce input gets passed to the DOM as a paragraph tag:
I would like to remove that element wrapper so that tinymce passes exactly what I entered in the text editor.
How do I do that ? Please if you provide a code, can you also let me know where that code gets added ?
Regards !!!
Actually I solved my problem. All I had to do was change the styling for paragraph tag :
p {margin: 0; padding: 0;}
You need to specify the forced_root_block to false. However the documentation states that not having your root block as a <p> tag can cripple the editors behaviour. Newlines will be spaced with <br> tags instead.
tinyMCE.init({
selector: 'textarea',
forced_root_block: false
});
See the documentation here
I strip out those pesky things with gsub and regex like this:
<%= #event.desc_long.gsub(/^\<p\>/,"").gsub(/\<\/p\>$/,"") %>
First .gsub removes the <p> at the start of the TinyMCE string, and the second one removes the </p> at the end. Working great for me. This would work for any language that uses regex (gsub is for rails). JavaScript example:
var str = "{TinyMCE HTML string}";
str = str.replace(/^\<p\>/,"").replace(/\<\/p\>$/,"");
Hope this helps!
EDIT:
Re: where to put it. You leave what TinyMCE puts in your database alone. Add the above only when you display it (in the view, e-mail whatever).
In case you just want to get rid of margins:
tinymce.init({
...
setup: function(ed) {
ed.on('init', function() {
var doc = this.getDoc().getElementById("tinymce");
doc.style.margin = 0;
});
},
});
I've got a presentation running with reveal.js and everything is working. I am writing some sample code and highlight.js is working well within my presentation. But, I want to incrementally display code. E.g., imagine that I'm explaining a function to you, and I show you the first step, and then want to show the subsequent steps. Normally, I would use fragments to incrementally display items, but it's not working in a code block.
So I have something like this:
<pre><code>
def python_function()
<span class="fragment">display this first</span>
<span class="fragment">now display this</span>
</code></pre>
But the <span> elements are getting syntax-highlighted instead of read as HTML fragments. It looks something like this: http://imgur.com/nK3yNIS
FYI without the <span> elements highlight.js reads this correctly as python, but with the <span>, the language it detects is coffeescript.
Any ideas on how to have fragments inside a code block (or another way to simulate this) would be greatly appreciated.
To make fragments work in code snippets, you can now use the attribute data-noescape with the <code> tag
Source: Reveal.js docs
I got this to work. I had to change the init for the highlight.js dependency:
{ src: 'plugin/highlight/highlight.js', async: true, callback: function() {
[].forEach.call( document.querySelectorAll( '.highlight' ), function( v, i) {
hljs.highlightBlock(v);
});
} },
Then I authored the section this way:
<section>
<h2>Demo</h2>
<pre class="stretch highlight cpp">
#pragma once
void step_one_setup(ofApp* app)
{
auto orbit_points = app-><span class="fragment zoom-in highlight-current-green">orbitPointsFromTimeInPeriod</span>(
app-><span class="fragment zoom-in highlight-current-green">timeInPeriodFromMilliseconds</span>(
app->updates.
<span class="fragment zoom-in highlight-current-green" data->milliseconds</span>()));
}
</pre>
</section>
Results:
I would try to use multiple <pre class="fragment">and change manually .reveal pre to margin: 0 auto; and box-shadow: none; so they will look like one block of code.
OR
Have you tried <code class="fragment">? If you use negative vertical margin to remove space between individual fragments and add the same background to <pre> as <code> has then you get what you want.
Result:
Given that I have a string being displayed on the page in AngularDart.
... <strong>Notes: </strong> {{cmp.selectedStudent.notes}} ...
How can I make it display multi-line? In the string I have newline characters, I want them to be encoded as <br /> characters in the html output.
You can replace the '\n' in your string with <br/> and use something like the proposed my-bind-html directive shown in my answer here How to add a component programatically in Angular.Dart? (the code might be a bit outdated due to a lot of recent changes in Angular)
You could use ng-repeat and repeat over your notes lines but first you need to split them by '\n' so you get an array of lines.
List<String> _notesList = null;
List<String> get notesList {
if (_notesList==null) _notesList = notes.split("\n").toList(); return _notesList;
}
.
<span ng-repeat="note in cmp.selectedStudent.notesList">{{note}}<br /></span>
By default, angular doesn't interpret HTML balise to avoid some unpredictible behavior or others bad thing, but you can disable this verification with
ng-bind-html
link to the official doc : NgHtmlBind
So you can replace directly the '\n' character by the 'br' html node.
So you can do :
// ...
String getHtmlBrNote() {
return this.notes.replaceAll("\n", "<br />");
}
// ...
and after in angular
... <strong>Notes: </strong> <span ng-bind-html="cmp.selectedStudent.getHtmlBrNote()"></span> ...
And it will be ok
TableSorter is a great jquery script to sort html tables with many options.
But I don't know how to add a simple 'export to csv' button (or link) to get a file containing the records of my table (with no special formatting).
I know the Output Plugin but it seems far too complex to me.
Thanks by advance for your help !
Ted
It's actually not complicated, it only looks intimidating because of all the options. The output widget can output csv, tsv, any other separated (space, semi-colon, etc) values, javascript array or JSON.
If you are just using basic functionality, the default settings will:
Output csv to a popup window
Only include the last header row
Only include filtered rows (so all rows if the filter widget isn't even being used)
Will only output the table cell text (ignores HTML)
All you would need is this code (demo):
HTML
<button class="download">Get CSV</button>
<table class="tablesorter">
....
</table>
Script
$(function () {
var $table = $('table');
$('.download').click(function(){
$table.trigger('outputTable');
});
$table.tablesorter({
theme: 'blue',
widgets: ['zebra', 'output']
});
});
I created another demo, showing all options, with a set of radio buttons which allow the user to choose between sending the output to a popup window, or downloading the file.
HTML
<label><input data-delivery="p" name="delivery" type="radio" checked /> popup</label>
<label><input data-delivery="d" name="delivery" type="radio" /> download</label>
<button class="download">Get CSV</button>
Script
var $table = $('table');
$('.download').click(function(){
// get delivery type
var delivery = $('input[name=delivery]:checked').attr('data-delivery');
$table.data('tablesorter').widgetOptions.output_delivery = delivery;
$table.trigger('outputTable');
});
So, you can make it as simple or complex as you want (see the actual output widget demo which allows the user to set almost all the options).
How does Stack Overflow show interactive character limits? Like when editing comments, it shows you how many characters you have left, as well as warning if it is too few.
I'd like that exact functionality in my Ruby on Rails... But not sure how to do it?
Stackoverflow uses the jQuery JavaScript Framework and it has a lot of existing scripts and plugins for this sort of thing.
One example is this Interactive Character Limit for TextArea in jQuery demonstrated here.
I'm sure there are others as well.
I use the following JavaScript function to restrict max length in textareas
function checkLength(edit, maxlen)
{
if (edit.value.length > maxlen)
edit.value = edit.value.substring(0, maxlen);
document.getElementById('remaining').innerHTML = edit.value.length;
}
Link this to your textarea's onKeyDown and onKeyUp attributes:
onKeyDown = "checkLength(this, 100);"
by using the onkeydown event on the input. There are millions of examples out there and frankly I'd be surprised if this isn't a duplicate question.
It is: How to show interactive character limits?
I think you are looking for some javascript, basically you add a handler to the textbox onkeypress event then to get the current length:
mytextbox.value.length
and to limit it you could do something like:
if (mytextbox.value.length > maxlimit)
mytextbox.value = mytextbox.value.substring(0, maxlimit);
You can also use simple javascript event handling to show character counts
for input elements. No server side processing required.
This javascript catches the key-press event for a text area "txt"
and shows the character count in a span "count".
See it running at
http://aaron.oirt.rutgers.edu/myapp/root/charCount.html
<html>
<head>
<script>
function go() {
var txt=document.getElementById("txt");
txt.onkeydown = countTxt;
}
function countTxt() {
var txt=document.getElementById("txt");
var count=document.getElementById("count");
count.innerHTML = txt.value.length+1; // count the character not shown yet ;)
}
</script>
</head>
<body onload="go()">
<h3>type in the text area and see the count change</h3>
<textarea id="txt" rows="8" cols="30"></textarea>
<br>
count: <span id="count"> 0</span>
</body>
The count can be off my +-1 -- fixing that (if you really want to) is left to the reader.