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jQuery store .each() .text() for truncation possible?

I have asked a similar question previously, but didn't give enough context. As a result I received an excellent, technically-correct answer that didn't solve my issue.
I've also looked around on Stack but don't know enough about jQuery to find my answer.
I need to truncate multi-line text with jQuery. The code needs to add/remove text as well when the browser window expands and contracts. So from my minimal understanding the code needs to store the text before truncating it so that it can add text back in when the browser window is expanded.
Initially this piece of code solved my problem:
$(function () {
var initial = $('.js-text').text();
$('.js-text').text(initial);
while($('.js-text').outerHeight() > $('.js-text-truncator').height()) {
$('.js-text').text(function(index, text) {
return text.replace(/\W*\s(\S)*$/, '...');
});
}
$(window).resize(function() {
$('.js-text').text(initial);
while($('.js-text').outerHeight() > $('.js-text-truncator').height()) {
$('.js-text').text(function(index, text) {
return text.replace(/\W*\s(\S)*$/, '...');
});
}
});
});
This code no longer cuts it as when I use these .js classes more than once on a single page all the text is stored together and then spat out whenever the classes are being used.
Here is a jsFiddle of the the issue:
http://jsfiddle.net/1ddxtpke/
I need to store each .js-text text separately, so that I can use this jQuery snippet across a large project and have all instances of truncated text fed back into the DOM if a user were to expand their browser window size.
Is this possible? If so, how would I do it?
Thanks in advance for tackling my question. I hope I have been specific enough in what I'm looking for.

There are several ways how to do this. You can store it in an array:
var initialValues = [];
// Save the initial data
$('.js-text').each(function () {
initialValues.push($(this).text());
});
// On start
while($('.js-text').outerHeight() > $('.js-text-truncator').height()) {
$('.js-text').text(function(index, text) {
return text.replace(/\W*\s(\S)*$/, '...');
});
}
// When the window gets resized
$(window).resize(function() {
$('.js-text').text(function () { return initialValues[$('.js-text').index($(this))]; });
while($('.js-text').outerHeight() > $('.js-text-truncator').height()) {
$('.js-text').text(function(index, text) {
return text.replace(/\W*\s(\S)*$/, '...');
});
}
});
It has a catch though - the .js-text elements can't be erased or moved about, because it'll destroy the ordering. That'd require another function for order resetting in case something changes.
I haven't tested it, but in principle it should work this way.
EDIT: Okay, I reworked it a bit and here's the result:
var initialValues = [];
// Save the initial data
$('.js-text').each(function () {
initialValues.push($(this).text());
while ($(this).outerHeight() > $(this).parent().height()) {
$(this).text($(this).text().replace(/\W*\s(\S)*$/, '...'));
}
});
// When the window gets resized
$(window).resize(function() {
$('.js-text').each(function (index) {
$(this).text(initialValues[index]);
while ($(this).outerHeight() > $(this).parent().height()) {
$(this).text($(this).text().replace(/\W*\s(\S)*$/, '...'));
}
});
});

I see 2 ways of doing this :
1) Storing the full text as an attribute when needed. With this your text will stay with your div and can be retrived on expanding with a simple .attr .
2) Storing the text in an array and storing the index as an attribute on the div. This way is probably much more efficient than the previous one as I'm not sure what is the max length of a value of an attribute.

your function one syntax error
var initialValues = [];
// Save the initial data
$('.js-text').each(function () {
initialValues.push($(this).text());
});
// On start
while ($('.js-text').outerHeight() > $('.js-text-truncator').height()) {
$('.js-text').text(function (index, text) {
return text.replace(/\W*\s(\S)*$/, '...');
});
}
// When the window gets resized
$(window).resize(function() {
$('.js-text').text(function () { return initialValues[$('.js-text').index($(this))]; });
while($('.js-text').outerHeight() > $('.js-text-truncator').height()) {
$('.js-text').text(function(index, text) {
return text.replace(/\W*\s(\S)*$/, '...');
});
}
});
Demo Link http://jsfiddle.net/1ddxtpke/2/

Hiding images with same data value jquery

Im trying to code a site where the objective is to click on two identical images and it hides the both the images you've managed to match to eachother.
$(document).ready(function(){
var animal1;
var animal2;
$(".memory1").on("click", function(){
animal1 = $(this).data('animal');
});
$(".memory2").on("click", function(){
animal2 = $(this).data('animal');
if (animal1==animal2){
$(this).data('animal').hide();
}
else {
alert("Wrong, Try again!");
}
});
});
so the line where its going wrong is obviously
$(this).data('animal').hide();
But I cant figure out a way to hide both images, or a better way of going about it.. :/
http://jsfiddle.net/4vgfca76/

This doesn't work the way you think it does
$(this).data('animal').hide();
When data is used with one argument, it get's the data attribute, which you should already know as you're doing it a few lines above.
What you get is the string hund etc. and that string doesn't have a hide() method.
You should be using the attributes selector to select the elements with that attribute instead
$(document).ready(function () {
var animal1, animal2;
$(".memory1").on("click", function () {
animal1 = $(this).data('animal');
});
$(".memory2").on("click", function () {
animal2 = $(this).data('animal');
if (animal1 == animal2) {
$('img[data-animal="'+animal1+'"]').hide();
} else {
alert("Fel! Försök igen");
}
});
});

Scroll to bottom of page after get request AngularJs

I'm familiar with using something like:
$scope.gotoBottom = function(){
$location.hash('bottom');
$anchorScroll();
}
and this works.. yet what I'm seeing is an issue when retrieving data that's being used in an ng-repeat and attempting to resize when that data comes in.
Example (in controller):
users.get({userList:$routeParams.conversationId}, function(data){
$scope.userList = data;
$scope.gotoBottom();
})
The gotoBottom method is firing to fast, while the ng-repeat is looking on $scope.userList and buidling it's table based off that.
I want to be able to toggle gotoBottom after that list has been remade (or whenever it's modified). Is there a better way to achieve this?
Thank you!

You can use $watch listener to fire gotoBotton when an AngularJs variable change.
$scope.ActivityList = new Array();
$scope.$watch("ActivityList", function () {
$scope.$evalAsync(function () {
$scope.DoSomething();
});
}, true);
$scope.DoSomething = function () {
$(function () {
//$scope.gotoBottom();
});
};

Also you can run scrolling bottom after page is loaded
angular.element($window).bind('load',
function() {
var element = document.getElementById("messages-list").lastElementChild;
element.id = "bottom";
/*-------------*/
$location.hash('bottom');
$anchorScroll();
}

Organzing javascript / jQuery for multiple web pages

To keep organized, I'd like to keep all the javascript for my site in a single file:
scripts.js
However, some of my scripts are only used on on some pages, other scripts are only used on other pages.
In my document-ready function it looks like this:
function home_page() {
// image rotator with "global" variables I only need on the home page
}
$('#form')... // jQuery form validation on another page
The problem with this, is that I am getting javascript to execute on pages it's not even needed. I know there is a better way to organize this but I'm not sure where to start...

One thing you could do would be to use classes on the <html> or <body> tag to establish the type of each page. The JavaScript code could then use fairly cheap .is() tests before deciding to apply groups of behaviors.
if ($('body').is('.catalog-page')) {
// ... apply behaviors needed only by "catalog" pages ...
}
Even in IE6 and 7, making even a few dozen tests like that won't cause performance problems.

I usually do something like this, or some variation (a little pseudo code below) :
var site = {
home: {
init: function() {
var self=this; //for some reference later, used quite often
$('somebutton').on('click', do_some_other_function);
var externalFile=self.myAjax('http://google.com');
},
myAjax: function(url) {
return $.getJSON(url);
}
},
about: {
init: function() {
var self=this;
$('aboutElement').fadeIn(300, function() {
self.popup('This is all about me!');
});
},
popup: function(msg) {
alert(msg);
}
}
};
$(function() {
switch($('body').attr('class')) {
case 'home':
site.home.init();
break;
case 'about':
site.about.init();
break;
default:
site.error.init(); //or just home etc. depends on the site
}
});

I ususally have an init() function that goes something like this:
function init() {
if($('#someElement').length>1) {
runSomeInitFunction()
}
... more of the same for other elements ...
}
Basically just check to see if the element exists on the page, if it does, run its own initialization function, if not, skip it.
The whole JS codes is cached by the browser after the first page load anyway, so there's no point in fragmenting your JS file down into page-specific pieces. That just makes it a maintenance nightmare.

You could use for each page object literals to get different scopes.
​var home = {
other: function() {
},
init: function() {
}
};
var about = {
sendButton: function(e) {
},
other: function() {
},
init: function() {
}
}
var pagesToLoad = [home, about];
pagesToLoad.foreach(function(page) {
page.init();
});​

How to have multiple instances of jQuery plugin on single page?

I'm writing a simple jQuery plugin, but I'm having trouble being able to use multiple instances on a page.
For instance, here is a sample plugin to illustrate my point:
(function($) {
$.fn.samplePlugin = function(options) {
if (typeof foo != 'undefined')
{
alert('Already defined!');
} else {
var foo = 'bar';
}
};
})(jQuery);
And then if I do this:
$(document).ready(function(){
$('#myDiv').samplePlugin({}); // does nothing
$('#myDiv2').samplePlugion({}); // alerts "Already defined!"
});
This is obviously an over-simplified example to get across the point. So my question is, how do I have two separate instances of the plugin? I'd like to be able to use it across multiple instances on the same page.
I'm guessing that part of the problem might be with defining the variables in a global scope. How can I define them unique to that instance of the plugin then?
Thank you for your guidance!

I have the very same problem but i find a very handy solution i´ll post it for someone who may have this problem
when you define your variables insinde the plugin you could use the .data() to store all the variables you define
like this
(function($) {
$.fn.samplePlugin = function(options) {
var base = this;
this.foo // define foo
// do stuff with foo and other variables
// Add a reverse reference to the DOM object
this.data("pluginname", base);
};})(jQuery);
And when you want to use the same foo variable you should retrive the reference with this:
base = this.data("pluginname");
base.foo
Hope it helps
Logan

html:
<code class="resize1">resize1</code>
<code class="resize2">resize2</code>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/jqueryui/1.10.3/jquery-ui.min.js"></script>
<script src="js/plugins.js"></script>
<script src="js/main.js"></script>
<script type="text/javascript">
jQuery(document).ready(function($) {
$('.resize1').ratiofix({message:'resize1'});
$('.resize2').ratiofix({message:'resize2'});
});
</script>
I have found 2 solutions - the first one is jquery widget factory
http://jqueryui.com/widget/
js code:
$.widget("custom.ratiofix",{
options:{
message:"nothing"
},
_create:function (){
var self=this;
this.setListeners();
},
setListeners:function (){
var self=this;
$(window).on('resize',$.proxy(self.printMsg,self));
},
printMsg:function (){
console.log(this.options.message);
}
});
And the second (without widget factory):
(function ($){
var Ratiofix = {
init: function(options, elem) {
this.options = $.extend({},this.options,options);
this.elem = elem;
this.$elem = $(elem);
this.setListeners();
return this;
},
options: {
message: "No message"
},
printMsg: function(){
console.log(this.options.message);
},
setListeners:function (){
var self=this;
this.$elem.on('click',function (){
console.log(self.options.message);
});
$(window).on('resize',$.proxy(self.printMsg, self));
}
};
$.fn.ratiofix=function (options){
this.init= function(options, elem) {
this.options = $.extend({},this.options,options);
this.elem = elem;
this.$elem = $(elem);
return this;
};
if ( this.length ) {
return this.each(function(){
var ratiofix = Object.create(Ratiofix);
ratiofix.init(options, this);
$.data(this, 'ratiofix', ratiofix);
});
}
};
})(jQuery);
In both cases plugins work separately and have own settings. In my case - 2 widgets listen to window resize and print to console own options.message

I'm not sure what you mean by having more than one instance of a plugin. A plugin would be available to use on any element.
This comment doesn't clarify much for me:
So say that it was a plugin that took
a "color" parameter and turned the
object into that color. Well, in that
case you'd need multiple instances, as
you're dealing with more than one page
element turning more than one color.
In this case, you would pass in different colors are arguments as needed:
$('div#foo').makeColor('red');
$('div#bar').makeColor('blue');
Each time you call the plugin, it will use whatever arguments you give it. The plugin isn't a class that needs instances.

Just throwing my solution in here:
(function ($){
$.fn.plugin = function (options){
var settings = $.extend({}, $.fn.plugin.defaults, options);
settings.that = $(this);
$.fn.plugin.init (settings);
};
$.fn.plugin.defaults = { objval: 'default' };
$.fn.plugin.init = function (settings){
settings.that.val (settings.objval);
};
}( jQuery ));
$('#target1').plugin ({objval: 'not default'});
$('#target2').plugin ();
DEMO
The settings variable is isolated every time you initialize the object.

To answer your question directly, you can use jQuery.noconflict() to avoid namespace collisions and thus potentially have multiple instantiations on a page..
var $j = jQuery.noConflict();
// Use jQuery via $j(...)
$j(document).ready(function() {
// etc
check here
But I question your design. Why are you writing a plugin that appears to not operate on a jQuery wrapped set ? .. Plugins should be written to assume they are operating on a jQuery array held in 'this'. In which case any state can be stored in each of the items being acted upon... But maybe you are building something different?
Please review this page

instead of writing this
$("#divid1").samplePlugin();
$("#divid2").samplePlugin();
you can do this way
$.plugin('samplePlugin1', samplePlugin);
$("#divid1").samplePlugin1();
$.plugin('samplePlugin2', samplePlugin);
$("#divid2").samplePlugin2();
You can have much details from here
http://alexsexton.com/?p=51

You need to use this.foo instead of var foo, so that the variable is only related to the current object.

This worked a treat for me! I had specific parameters for which pages/places I wanted to run a plugin and was able to achieve success by using a simple if statement. Hope this helps someone!
<!-- Begin JQuery Plugin Foo -->
<script src="js/foo_fun.js"></script>
<?php
if(substr_count(strtolower($currentUrl),"member")>0)
{
?>
<script>
$(document).ready(function(){
$('#vscroller').vscroller({newsfeed:'news_employee.xml', speed:1000,stay:2000,cache:false});
});
</script>
<?php
}
else
{
?>
<script>
$(document).ready(function(){
$('#vscroller').vscroller({newsfeed:'news_company.xml', speed:1000,stay:2000,cache:false});
});
</script>
<?php
}
?>
<!-- End JQuery Foo-->

I had the same problem : how to use many instances of a plugin on only one form ?
The usual way fails because in fact, the instance is not an instance of the plugin : it is an instance of jQuery.
So, if more than one element is defined to be managed by a plugin, each definition overrides the previous parameters.
It was necessary to have a look on the problem from another side.
A plugin is usually made to react on a specific event for a specific element. e.g.. onclick on a button, or when the mouse is over the element.
In my case, I had to use an autocomplete plugin for a city field, but my form has 5 tabs and in total 4 fields for the cities for 4 different parts of the information to be collected.
For each fields, parameters are specifics.
By the way, I've realised iI don't need to have the plugin active everytime : just on the appropriate event on the field is enough.
So I had an idea : an event manager for each element. When the event appends, so I define the plugin action.
Some code will be more efficient to explain : imagine you have 3 div blocks and your plugin must change the colours, but with specifics colours depending on which div is affected.
$(document).ready(function(){
// Wich elements are affected by the plugin
var ids = ['myDiv1','myDiv2','myDiv3'];
// foe each one :
for (v in ids)
{
//define from an event :
$('#'+ ids[v]).focus(function()
{
// depending which id is active :
var aParams, idDiv = $(this).attr('id');
// Choosing the right params
switch(idDiv)
{
case 'myDiv1':
aParams = {'color': '#660000', 'background-color': '#0000ff'};
break;
case 'myDiv2':
aParams = {'color': '#006600', 'background-color': '#ff00ff'};
break;
case 'myDiv3':
aParams = {'color': '#000066', 'background-color': '#ff0000'};
break;
default:
aParams = {'color': '#000000', 'background-color': '#ffffff'};
};
// Defining the plugin on the right element with the right params
$(this).myPlugin(
{
colors: aParams
});
});
}
});
And this works fine.
Sorry if my English is not perfect - I hope you understand well.