Develop Reference

Manipulate var in jquery by doing find and text

I use a WYSIWYG editor in my page. I collect the HTML in a callback function. I would like now change the content with jQuery. For that I do a find() to select the text I want to replace. Then I want to replace it, but I'm stuck!
$('.save').click(function() {
var html = $('#edit').editor('get_html');
console.log(html)
var ma_societe_OLD = $(html).find('.ma_societe').attr('data');
var ma_societe = $(html).find('.ma_societe').text();
if (ma_societe === ma_societe_OLD) {
$(html).find('.ma_societe').text('dfdsfsdfds');
}
console.log(html);
});
As you can see, I want to replace the content of the span with my own text. But it's not working.

The issue is because you're making amendments to the jQuery object, but you never store those changes anywhere. You either create a new jQuery object containing the original, unchanged html, or return the html string directly.
Instead, create $(html) in a variable, make your changes to it, then work with it as needed. Something like this:
$('.save').click(function() {
var html = $('#edit').editor('get_html');
var $html = $(html);
var $maSociete = $html.find('.ma_societe')
if ($maSociete.text() === $maSociete.attr('data')) {
$maSociete.text('dfdsfsdfds');
}
var result = $html[0].outerHTML
console.log(result);
});

Dynamically add new element and change its content

I want to "copy" a certain elements and the change some of the text inside them with a regex.
So far so good: (/w working fiddle - http://jsfiddle.net/8ohzayyt/25/)
$(document).ready(function () {
var divs = $('div');
var patt = /^\d\./;
var match = null;
for (i = 0; i < divs.length; i++) {
match = ($(divs[i]).text().match(patt));
$(divs[i]).text($(divs[i]).text().replace(match[0], "5."));
}
});
HTML
<div>1. peppers</div>
<div>2. eggs</div>
<div>3. pizza</div>
This works exactly the way I want it, but I want to add some of the content dynamically, but when I try to change the content of the copied divs, nothing happens.
Please refer to this fiddle:
http://jsfiddle.net/8ohzayyt/24/
I have put some comments, to be more clear what I want to achieve.

I thing that your problem is that you're not passing an element to your changeLabel function, but just a string.
Look at this solution: http://jsfiddle.net/8ohzayyt/26/
Here is the line I changed to make your code work:
var newContent = $("<hr/><div id='destination'>" + $("#holder").html() + "</div>");
I just wrapped your HTML in $(). this creates an element from the string.

try:
var newContent = $("<hr/><div id='destination'>" + $("#holder").html() + "</div>");
EDIT:
Brief explanation What I've done.
In order to make $(el).find('div'); work changeLabel() needs an element. Instead of passing newContent as a string doing the above will make it pass as an element which will make $(el).find('div'); work.

Making a part of an uploaded text file as clickable using javascript

I uploaded one file using javascript. I want to make some parts of the text file as highlighted as well as clickable. For example: I want to make all the "hello" in the uploaded file as clickable and highlighted.
I am able to highlight the text as i have used button tag and changed its background and border property in css but I am unable to do an onclick action when the button is clicked.
I tried it like this:
var sel_data=$("#sel").text(); // for taking the text file in avariable
var str='hello';
//making the regular expression of str
var re = new RegExp(str,"g");
//For replacing the 'str' by highlighted and clickable 'str'
var re_str="<button class='highlight' id='ty' onclick='alertfunc()' value="+str+">"+str+"</button>"
//replacement of 'str' by highlighted and clickable 'str'
var rep_data=sel_data.replace(re,re_str);
sel_data=rep_data;
//function to be executed when the button will get clicked
function alertfunc() {
alert('yellow');
}
I also tried it like this
var str='hello'
var re_str="<button class='highlight' id='ty' value="+str+">"+str+"</button>"
$(".highlight").click(function(){
alert("yellow");
})
or like this
var button = document.getElementById("ty");
button.onclick = function(){
alert("yellow");
}
But none of them is working , Please suggest
I referred the above examples by this link: Html make text clickable without making it a hyperlink

There are just a few things wrong here.
First, execute this code on document ready :
$(document).ready(function(){
// code
});
Then, update the actual html in the DOM :
//replacement of 'str' by highlighted and clickable 'str'
var rep_data=sel_data.replace(re,re_str);
sel_data=rep_data;
$("#sel").html(sel_data); // here
And use event delegation for the click :
$("#sel").on('click', '.highlight', function(){
alert("yellow");
});
demo

This is done by using jQuery library and the ready snippet :contains.
Here is the code you need:
jQuery.fn.highlight = function (str, className) {
var regex = new RegExp(str, "gi");
return this.each(function () {
$(this).contents().filter(function() {
return this.nodeType == 3 && regex.test(this.nodeValue);
}).replaceWith(function() {
return (this.nodeValue || "").replace(regex, function(match) {
return "<span class=\"" + className + "\">" + match + "</span>";
});
});
});
};
Using this snippet will lead the words "hello" to be wrapped around a span with class of your choice.
Now to call this function all you need to do is:
$(".testHighlight *").highlight("hello", "highlight");
Ofcourse you have to setup the .testHighlight class with CSS to be something like:
.testHighlight {
background:yellow;
}
To make them clickable you can do it easily with jQuery:
$(.testHighlight).click(function(){
//YOUR CODE HERE
});
You can check more on this snippet here.

Getting the content of the first cell from a dynamically created element inside another cell

I am unable to retrieve the content of the first cell. I'm trying it like this:
console.log($(this).closest("tr").find('td:first').innerHTML);
//or...
console.log($('td:first', $(this).parents('tr')).text());
Code:
$('.editable').click(function () {
var text = $(this).text();
if (typeof $(this).find("textarea")[0]=="undefined")//checking if we have a textarea already
{
$(this).text('');
$('<textarea />').appendTo($(this)).val(text).select().blur(function () {
var newText = $(this).val();
$(this).parent().text(newText).find('textarea').remove();
console.log($(this).closest("tr").find('td:first').innerHTML);
});
}
});
JSfiddle: http://jsfiddle.net/KjknL/
I think the problem has to do with the textarea being added dynamically. But I cannot move from it. If I use .prev() or .next(), it returns empty. Any ideas?

try this: http://jsfiddle.net/KjknL/2/
the textarea doesn't exist anymore because you removed it just before trying to reach the first td from it.
console.log($(this).closest("tr").find('td:first').html());
$(this).parent().text(newText).find('textarea').remove();

Replace text with HTML element

How can I replace a specific text with HTML objects?
example:
var text = "some text to replace here.... text text text";
var element = $('<img src="image">').event().something...
function ReplaceWithObject(textSource, textToReplace, objectToReplace);
So I want to get this:
"some text to replace < img src...etc >.... text text text"
And I would like manipulate the object element without call again $() method.
UPDATE:
I solved.
thanx #kasdega, i made a new script based in your script, because in your script i can't modify the "element" after replace.
This is the script:
$(document).ready(function() {
var text = "some text to replace here.... text text text";
var element = $('<img />');
text = text.split('here');
$('.result').append(text[0],element,text[1]);
$(element).attr('src','http://bit.ly/mtUXZZ');
$(element).width(100);
});
I didnt know that append method accept multiples elements.
That is the idea, only need to automate for multiple replacements
thanx to all, and here the jsfiddle

do a split on the text you want to replace then use the array indexes 0 and 1...something like:
function ReplaceWithObject(textSource, textToReplace, objectToReplace) {
var strings = textSource.split(textToReplace);
if(strings.length >= 2) {
return strings[0] + objectToReplace.outerHTML() + strings[1];
}
return "";
}
UPDATE: I found another SO post Get selected element's outer HTML that pointed me to a tiny jquery plugin that helps here.
I believe this jsfiddle has what you want. outerHTML is the tiny jquery plugin I included in the JSFiddle.
You can also use replace which will reduce some code: http://jsfiddle.net/kasdega/MxRma/1/
function ReplaceWithObject(textSource, textToReplace, objectToReplace) {
return textSource.replace(textToReplace, objectToReplace.outerHTML());
}

function textToObj (text,obj,$src){
var className = "placeholder-"+text;
$src.html($src.html().replace(text,"<div class='"+className+"'></div>"));
$("."+className).replace(obj);
}

you can use $(selector).outerHtml to get the html string of an element

You can replace the html directly: http://jsfiddle.net/rkw79/qNFKF/
$(selector).html(function(i,o) {
return o.replace('old_html','new_html');
})