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Textarea not generating from jQuery

I'm trying to make a website using jquery-1.11.1 where I want a <textarea> to be spawned whenever I click on the link which only shows on mouseenter on a div. But I'm getting an error in my console,
Uncaught ReferenceError: inputdivEditor is not defined (Please ignore JSFiddle errors)
I've absolutely no idea why I'm getting this. Here are my codes,
$(document).ready(function () {
$("[id^=divEditor-]").each(function () {
var content = $(this).html();
var targetID = $(this).attr('id');
var txtID = 'input' + targetID;
$('<textarea id="input' + targetID + '" name="' + txtID + '" >' + content + '</textarea>').insertBefore(this).css('display', 'none');
var button = "<a onclick='activateDivEditor(this, " + txtID + ")' class='custom-edit-button editDiv' id='active" + targetID + "'>Embed Code</a>";
$(this).on('mouseenter', function () {
$(this).prepend($(button));
$(this).css('position', 'relative');
});
$(this).on('mouseleave', function () {
$('.editDiv').remove();
});
});
});
function activateDivEditor(btn, txtId) {
var targetID = $(btn).parent().get(0).id;
var update = "<a onclick='deactivateDivEditor(this, " + txtId + ")' class='custom-edit-button updatediv' id='deactive" + targetID + "'>Update</a>";
var cancel = "<a onclick='cancelactivateDivEditor(this)' class='custom-edit-button cancel' id='cancelactive" + targetID + "'>Cancel</a>";
var targetClass = $('#' + targetID).attr('class');
var targetWidth = $('#' + targetID).width();
$('#' + targetID).css('display', 'none');
$('#input' + targetID).css('display', 'block').css('width', targetWidth - 2).css('height', '125px');
$('#input' + targetID).parent().css('position', 'relative');
$(update).prependTo($('#input' + targetID).parent());
$(cancel).prependTo($('#input' + targetID).parent());
}
JSFiddle Demo
How can I generate a textarea whenever I click on the button link? Need this help badly. Thanks.

what is the correct syntax form for this to function -- Javascript

In the following lines of code, I try to add a function inside html tag in javascript:
nuevo = "<p class='item'>" + res.tarea + "<button onclick = '" + return EliminarTareas(database) + (" + res.tarea +");'>" + "Eliminar" + "</button></p>";
$('#listatareas').append(nuevo);
function EliminarTareas(id, base) {
base.transaction(function(tx) {
tx.executeSql("DELETE tarea FROM Tareas WHERE tarea=?", [id], function () {
});
});
}

The main problem is this part +return EliminarTareas(" + database + ", " + res.tarea +");'>". It discards the second parameter since you closed the paranthesis ), and it also has quote problems.
It should be like this +" return EliminarTareas(" + database + ", " + res.tarea + ");'>"
However, I believe addressing this task with .data would be effective, and it may provide a better structure. Below is my version with some codes from yours (DEMO: https://jsfiddle.net/9q4hLs3a/):
var nuevo = $("<p class='item'><button data-var1='" + database + "' data-var2='" + res.tarea + "'>Eliminar</button></p>");
$('#listatareas').append(nuevo);
$(document).ready(function(){
$(document).on('click', '#listatareas button', function(){
var var1 = $(this).data('var1');
var var2 = $(this).data('var2');
EliminarTareas(var1 , var2 )
});
function EliminarTareas(id, base){
base.transaction(function(tx){
tx.executeSql("DELETE tarea FROM Tareas WHERE tarea=?", [id], function (){
});
}

I think this is what you wanted
"<p class='item'>"+ res.tarea +"<button onclick = 'EliminarTareas("+database+","+res.tarea +")'>Eliminar</button></p>";

Hiding <p> field in javascript

Here's my code for gathering titles/posts from reddit's api:
$.getJSON("http://www.reddit.com/search.json?q=" + query + "&sort=" + val + "&t=" + time, function (data) {
var i = 0
$.each(data.data.children, function (i, item) {
var title = item.data.title
var url = item.data.url
var id = item.data.id
var subid = item.data.subreddit_id
var selftext = item.data.selftext
var selftextpost = '<p id="post' + i + '">' + selftext + '</p><br>'
var post = '<div>' + '' + title + '' + '</div>'
results.append(post)
results.append(selftextpost)
i++
});
});
Basically every post (selftext) is assigned a different paragraph id (post0, post1, post2, etc) for every result that's pulled. I'm also going to create a "hide" button that follows the same id scheme based on my i variable (submit0, submit1, submit2, etc). I want to write a function so that based on which button they click, it will hide the corresponding paragraph. I've tried doing an if statement that's like if("#hide" + i) is clicked, then hide the corresponding paragraph, but obviously that + i doesn't work. How else can I tackle this?

Could you try something like the below?
showhide = $("<a class='hider'>Show/Hide</a>");
results.append(showhide);
$(showhide).click(function() {
$(this).next().toggle();
}
Alternatively:
$.each(data.data.children, function (i, item) {
var title = item.data.title
var url = item.data.url
var id = item.data.id
var subid = item.data.subreddit_id
var selftext = item.data.selftext
var selftextpost = '<p id="post' + i + '">' + selftext + '</p><br>'
var showhide = $("<a class='hider" + i + "'>Show/Hide</a>");
var post = '<div>' + '' + title + '' + '</div>'
results.append(post)
results.append(selftextpost)
results.append(showhide);
$(showhide).click(function() {
$(this).next().toggle();
});
i++
});

EDITED How to get the json value for localStorage in a loop

after Oyeme's advise, i have changed my code, but still cannot work. it can alert "testing" but cannot alert DBuser_name .
By the following coding, i can create a content like the image below. My problem is that, if the user click one of the people in the list, i would like to extract the student.data.user_name into localStorage. however, in my coding below, seems that i did wrong?
function getStudentList() {
$.getJSON('http://mydomain.com/getStudents.php?jsoncallback=?', function(data) {
$('#studentList li').remove();
$('#load').hide();
//students = data.user_name;
$.each(data, function(index, student) {
//$('#studentList').append('<li><a href="tutor_student_detail.html?user_name=' + student.data.user_name + '">' +
$('#studentList').append('<li><a href="tutor_student_detail.html">' +
'<h4>' + student.data.user_name + '</h4>' +
'<p>' + student.data.role + '</p>' +
'</a></li>');
$("li a").click(function() {
window.localStorage["view"] = $(this).data('user_name');
});
});
$('#studentList').listview('refresh');
});
}
Below are the coding of tutor_student_detail.html (js part)
function start(){
var localUsername=window.localStorage.getItem("view");
$.getJSON('http://mydomain.com/getStudent.php?user_name='+localUsername+'&jsoncallback=?', displayStudent);
alert("testing");
}
function displayStudent(data) {
var DBuser_name=data[0].data.user_name;
alert(DBuser_name);
var employee = data.item;
$('#username').text(student.data.user_name);
$('#pw').text(student.data.password);
$('#id').text(student.data.id);
$('#actionList').listview('refresh');
}
the output of json string is something like
?([{"data":{"id":"4","user_name":"studentB","book":"4567","role":"Student"}}]);

$('#studentList').append('<li><a href="tutor_student_detail.html"
data-name="'+student.data.user_name+'">' +
'<h4>' + student.data.user_name + '</h4>' +
'<p>' + student.data.role + '</p>' +
'</a></li>');
$("li a").click(function() {
window.localStorage["view"] = $(this).data('name');
});

retrieving the twitter search feeds dynamically using ajax

Long back I used JSON and was successful to get the hash tag feeds from twitter and facebook. But presently I am just able to get the feeds but its not being updated constantly that means it not been update dynamically. I guess I need to ajaxify it, but I am not able to do that since I am not aware of ajax. Here is the code which I have used to get the twitter search feeds.
$(document).ready(function()
{
$("#Enter").click(function(event){
var searchTerm = $("#search").val() ;
var baseUrl = "http://search.twitter.com/search.json?q=%23";
$.getJSON(baseUrl + searchTerm + "&rpp=1500&callback=?", function(data)
{
$("#tweets").empty();
if(data.results.length < 1)
$('#tweets').html("No results JOINEVENTUS");
$.each(data.results, function()
{
$('<div align="justify"></div>')
.hide()
.append('<hr> <img src="' + this.profile_image_url + '" width="40px" /> ')
.append('<span><a href="http://www.twitter.com/'
+ this.from_user + '">' + this.from_user
+ '</a> ' + makeLink(this.text) + '</span>')
.appendTo('#tweets')
.fadeIn(800);
});
});
});
});
function makeLink(text)
var exp = /(\b(https?|ftp|file):\/\/[-A-Z0-9+&##\/%?=~_|!:,.;]*[-A-Z0-9+&##\/%=~_|])/ig;
return text.replace(exp,"<a href='$1'>$1</a>");
}

The code below should help you. What I've done is moved the code which fetches the tweets into a function. This function is then called every X seconds to update the box. When the user enters a new search term and clicks "Enter", it will reset the timer.
var fetchSeconds = 30; //Number of seconds between each update
var timeout; //The variable which holds the timeout
$(document).ready(function() {
$("#Enter").click(function(event){
//Clear old timeout
clearTimeout(timeout);
//Fetch initial tweets
fetchTweets();
});
});
function fetchTweets() {
//Setup to fetch every X seconds
timeout = setTimeout('fetchTweets()',(fetchSeconds * 1000));
var searchTerm = $("#search").val();
var baseUrl = "http://search.twitter.com/search.json?q=%23";
$.getJSON(baseUrl + searchTerm + "&rpp=1500&callback=?", function(data) {
$("#tweets").empty();
if (data.results.length < 1) {
$('#tweets').html("No results JOINEVENTUS");
}
$.each(data.results, function() {
$('<div align="justify"></div>').hide()
.append('<hr> <img src="' + this.profile_image_url + '" width="40px" /> ')
.append('<span>' + this.from_user + ' ' + makeLink(this.text) + '</span>')
.appendTo('#tweets')
.fadeIn(800);
});
});
}
function makeLink(text) {
var exp = /(\b(https?|ftp|file):\/\/[-A-Z0-9+&##\/%?=~_|!:,.;]*[-A-Z0-9+&##\/%=~_|])/ig;
return text.replace(exp,"<a href='$1'>$1</a>");
}
Hope this helps