Develop Reference

How to change style of each character of input text

Here I want to randomly change the CSS of each character of text.
Like if I input Stack I will get S in red, t in blue, a in green... etc on the bottom of the input field.
var myModel = {
name: "Mayur",
};
var myViewModel = new Vue({
el: '#my_view',
data: myModel
});
span{
color:green;
font-weight:600;
font-size:20px;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/1.0.26/vue.min.js"></script>
<div id="my_view">
<label for="name">Enter name:</label>
<input type="text" v-model="name" id="name" name="name" />
<p>Welcome, <span>{{ name | uppercase }}</span></p>
</div>

I haven't worked with Vue and I'm not familiar with its internal events and processes, but here's a tiny prototype i made in plain JavaScript:
document.querySelector('button').onclick = function (){
let span = document.querySelector('span.letters'),
text = span.textContent;
span.innerHTML = '';
Array.from(text).map(function(l){
let color = document.createElement('span');
color.innerHTML = l;
color.style.color = 'rgb(' +
randInterval(0, 255) + ',' +
randInterval(0, 255) + ',' +
randInterval(0, 255) + ')';
span.appendChild(color);
});
}
function randInterval(min,max)
{
return Math.floor(Math.random()*(max-min+1)+min);
}
<div><span class="letters">STACK</span></div>
<button>Random colors</button>
I've purposefully placed the function that randomizes each value of rgb() in a function, so you can alter it easily (now the colors are trully random). If you want to make the darker, you need to lower the max values. If you want the colors lighter, you need to increase the mins.

Html:
<div>Type something here, then click on the white space beneave.</div>
<input type="hidden" id="hidden">
Javascript:
$("div").prop("contentEditable", true).blur(function(){
var chars = $(this).text().split("");
$("#hidden").val($(this).text());
this.innerHTML = "";
$.each(chars, function(){
$("<span>").text(this).css({
color: "#"+(Math.random()*16777215|0).toString(16)
}).appendTo("div");
});
});
Css:
div{
border: 1px solid black;
width: 400px;
height: 20px;
padding: 2px 3px;
overflow: hidden;
}
You can visit http://jsfiddle.net/DerekL/Y8ySy/ for the implementation!
Both html and css codes are given in the link.
It gives the colour to the characters randomly but it can be manipulated easily or if you want them to run randomly, you can use it directly.

Convert a comma-separated string to an array and back and deleting array elements with onClick event

I have an HTML document. There are 2 fields:
First one is an hidden input field (with a pre selected value)
The other is an empty text input field. It displays the current value of the first one with jQuery.
Between that 2 fields, I have 9 buttons with different texts inside them.
With jQuery, when I click on a button it add his text in the visible field (separated by a coma) and it adds to himself an enabled class. This works.
When I click on the same button, the class is removed (this works).
What is not working:
I would like at the same time it removes his name from the field (with a coma) I With jQuery / JavaScript I have tried to convert with split() each name in the field (coma separated) to an array, to easily delete one of them when needed with splice().
What I haven done yet:
I need to convert-it back to a coma separated string, replacing the existing string value in the field ( I haven done this yet). I am not far.
My code on JS Fiddle
How can I achieve this?
My code in here:
jQuery(document).ready(function($){
if ($('.subscribe-text').val() == ''){
$('.subscribe-text').val($('.subscribe-text-get').val()+',')
}
$('.subscribe-button').click(function(){
if(!$(this).hasClass('enable'))
{
$('.subscribe-text').val($('.subscribe-text').val()+$(this).html()+',');
$(this).addClass('enable');
}
else if($(this).hasClass('enable'))
//
// I would like to remove the name in the field
// when a button is clicked and has 'enable' class
//
{
var myArray = new Array();
var myString = $('.subscribe-text').val();
myArray = myString.split(",");
var myItem = $(this).html()+' ';
var indexPos = myArray.indexOf(myItem);
if(indexPos != -1)
{
myArray = myArray.splice(indexPos, 1);
}
$('.subscribe-text').val(myArray);
$(this).removeClass('enable');
}
});
});
.subscribe-button {
background-color:#ddd
}
#buttons_x3 {
width:500px;
}
.subscribe-text {
width:100%;
font-size:9px;
}
.subscribe-button {
display: inline-block;
text-align:center;
padding:3px;
margin-bottom: 10px;
color: black;
height:20px;
width:100px;
margin:10px 20px 10px;
cursor:pointer;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div id="my_custom_checkout_field">
<input type="hidden" class="subscribe-text-get" name="my_field_name" value="woo-multi-1">
</div>
<br>
<div id="buttons_x3">
<a class="subscribe-button">woo-single-1</a>
<a class="subscribe-button">woo-single-2</a>
<a class="subscribe-button">woo-single-3</a>
<a class="subscribe-button">woo-multi-1</a>
<a class="subscribe-button">woo-multi-2</a>
<a class="subscribe-button">woo-top-1</a>
<a class="subscribe-button">woo-top-2</a>
<a class="subscribe-button">woo-top-3</a>
<a class="subscribe-button">woo-special</a>
</div>
<br>
<div id="my_custom_checkout_field">
<input type="text" class="subscribe-text" name="my_field_name" value>

Be careful of a few things here:
1) Every time you click a button you are creating a new array with one long string inside.
2) Splice returns the value of the removed item, so each time a button is clicked you are setting the array string to be the item that you just removed.
Instead, initialize the array outside of your click function, and add each new item to the end. Set the value of the input with the toString() method. This will preserve the array of remaining values and their order.
jQuery(document).ready(function($){
var myArray = [];
if ($('.subscribe-text').val() == ''){
myArray[0] = $('.subscribe-text-get').val();
$('.subscribe-text').val( myArray.toString() );
}
var $item, length;
$('.subscribe-button').click(function(){
length = myArray.length;
if(!$(this).hasClass('enable')) {
$item = $(this).html();
myArray[length] = $item;
$('.subscribe-text').val( myArray.toString() );
$(this).addClass('enable');
}
else if($(this).hasClass('enable')) {
var myItem = $(this).html();
var indexPos = myArray.indexOf(myItem);
if(indexPos != -1) {
myArray.splice(indexPos, 1);
}
$('.subscribe-text').val( myArray.toString() );
$(this).removeClass('enable');
}
});
});
.subscribe-button {
background-color:#ddd
}
#buttons_x3 {
width:500px;
}
.subscribe-text {
width:100%;
font-size:9px;
}
.subscribe-button {
display: inline-block;
text-align:center;
padding:3px;
margin-bottom: 10px;
color: black;
height:20px;
width:100px;
margin:10px 20px 10px;
cursor:pointer;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div id="my_custom_checkout_field">
<input type="hidden" class="subscribe-text-get" name="my_field_name" value="woo-multi-1">
</div>
<br>
<div id="buttons_x3">
<a class="subscribe-button">woo-single-1</a>
<a class="subscribe-button">woo-single-2</a>
<a class="subscribe-button">woo-single-3</a>
<a class="subscribe-button enable">woo-multi-1</a>
<a class="subscribe-button">woo-multi-2</a>
<a class="subscribe-button">woo-top-1</a>
<a class="subscribe-button">woo-top-2</a>
<a class="subscribe-button">woo-top-3</a>
<a class="subscribe-button">woo-special</a>
</div>
<br>
<div id="my_custom_checkout_field">
<input type="text" class="subscribe-text" name="my_field_name" value>
Here is my code on a jsFiddle

Show more/less text in a table automatically according to text length

I have a table with two columns, the second one sometimes contains big text so I want to show only the first 100 characters and put a show more link to display the remaining text. You can see here what Table I am working on http://jsfiddle.net/j11mj21x/.
For that I am using a code provided in this link (http://viralpatel.net/blogs/dynamically-shortened-text-show-more-link-jquery/), I put it in a file show_less_more.js :
(function($) {
$.fn.shorten = function (settings) {
var config = {
showChars: 100,
ellipsesText: "...",
moreText: "more",
lessText: "less"
};
if (settings) {
$.extend(config, settings);
}
$(document).off("click", '.morelink');
$(document).on({click: function () {
var $this = $(this);
if ($this.hasClass('less')) {
$this.removeClass('less');
$this.html(config.moreText);
} else {
$this.addClass('less');
$this.html(config.lessText);
}
$this.parent().prev().toggle();
$this.prev().toggle();
return false;
}
}, '.morelink');
return this.each(function () {
var $this = $(this);
if($this.hasClass("shortened")) return;
$this.addClass("shortened");
var content = $this.html();
if (content.length > config.showChars) {
var c = content.substr(0, config.showChars);
var h = content.substr(config.showChars, content.length - config.showChars);
var html = c + '<span class="moreellipses">' + config.ellipsesText + ' </span><span class="morecontent"><span>' + h + '</span> ' + config.moreText + '</span>';
$this.html(html);
$(".morecontent span").hide();
}
});
};
})(jQuery);
$(document).ready(function(){$(".descriptionText").shorten();});
I am using it like this:
<script src="show_less_more.js"></script>"
The HTML is like this for every row:
<tr>
<th>
course1
</th>
<td> <div class="descriptionText">Description of the course</div></td>
</tr>
I have also added the CSS for the more and less links:
a {
color: #0254EB
}
a:visited {
color: #0254EB
}
a.morelink {
text-decoration:none;
outline: none;
}
.morecontent span {
display: none;
}
When I do this in sfiddle it works pretty good as you can see here http://jsfiddle.net/j11mj21x/2/
However, I get nothing when rendering my table with python.
I think the problem is that I don't succeed to load my JS page into the html page, because when I click on it it give nothing.
Here is what is rendered in my html page:
....
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script><!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/css/bootstrap.min.css"><!-- Optional theme -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/css/bootstrap-theme.min.css"><!-- Latest compiled and minified JavaScript --><script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/js/bootstrap.min.js">
</script><script src="showLessMore.js"></script>
....
Can anyone tell me what could be the problem behind this because I have the "show_less_more.js" in the same folder as the file generator which in python?
Thank you in advance !

Here's a simple example of doing this relying more on CSS.
$(function() {
$('a').click(function() {
$('div').removeClass('ellipsis');
});
});
div {
border: solid 1px orange;
width: 200px;
overflow: hidden;
}
.ellipsis {
white-space: nowrap;
text-overflow: ellipsis;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div class='ellipsis'>Some really really long text that just is way too long so we must use ellipses to shorten it until the user wants to see it all.</div>
<br>
<a href='#'>Show All</a>

Checkboxes not binding to tags they create on DOM jquery

I have created a modal with checkboxes that when checked, are added to the DOM. The issues that I am having that I have been trying to troubleshoot for days are that whether the checkboxes are checked or unchecked, the tag is added to the DOM, not just when checked.
I also cannot figure out how to remove the tag from the DOM when the associated checkbox is unchecked. I have the amount of checkboxes that are able to be checked max out at 6, which is what I am looking to have, but is there a way to max the amount of child divs within a parent div there could be? That way theres another safeguard to fall back on so that no more than 6 tags can be selected at one time?
Here is a jsfiddle http://jsfiddle.net/co5w7c9j/ with what I have, hopefully I explained enough without making it sound too confusing.
Below is my jquery that I have written thus far, I think I am missing a step somewhere to achieve what I am looking for.
Thank you for taking the time to look through my code.
// When specilaty is checked, add tag to profile page
$('[name=specialty]').click(function() {
$newTag = $("<div class='specTag'>" + $(this).attr('value') + "<div class='xOut'>x</div></div>");
$(this).attr('value');
$('.Specialties').append($newTag);
/* if ($('.Specialties > .specTag').has(('[name=specialty]:checked').attr('value'))) {
$('.Specialties > .specTag').has((this).txt()).remove();
} */
// Count number of checkboxes selected and display in modal
var increment = 0;
$('[name=specialty]:checked').each(function() {
if (this.checked) {
increment++;
} else {
increment--;
}
$('#specCount').html(increment);
});
// Disable checkboxes when 6 (maximum) are selected
$("input[type=checkbox][name=specialty]").click(function() {
var bol = $("input[type=checkbox][name=specialty]:checked").length >= 6;
$("input[type=checkbox][name=specialty]").not(":checked").attr("disabled", bol);
});
// Create array of checked items - add on checked - remove on uncheck
specialtyArray = $('[name=specialty]:checked').map(function() {
return $(this).val();
// if item is in the array, then remove it from the DOM
if (jQuery.inArray($('[name=specialty]:checked').val(), specialtyArray) > -1) {}
});
console.log(specialtyArray.get());
});
// When Specialties modal closes, uncheck all checked boxes, reset count
$(document.body).on('click', '.close', function() {
$('.modal-body > #updateSpecForm > .columns').children().removeAttr('checked');
$('#specCount').html(0);
})
// Fade out specialty tags when x is clicked
$(document.body).on('click', '.xOut', function() {
$(this).parent().fadeOut('slow');
$(this).parent().remove();
});

Try
// When specilaty is checked, add tag to profile page
$('input[name=specialty]').change(function() {
var value = this.value;
//if checked add a new item else remove item.
if (this.checked) {
var $newTag = $("<div class='specTag'>" + value + "<div class='xOut'>x</div></div>").attr('data-id', value);
$('.Specialties').append($newTag);
} else {
//use the attribute value which is the same as the input value to find out the item to be removed
$('.Specialties').find('div.specTag[data-id="' + value + '"]').remove()
}
//cache the result since it is used multiple times
var $checked = $('input[name=specialty]:checked');
// Count number of checkboxes selected and display in modal
var increment = $checked.length;
$('#specCount').html(increment);
// Disable checkboxes when 6 (maximum) are selected
var bol = increment.length >= 6;
//use prop instead of attr to set the disabled state
$("input[type=checkbox][name=specialty]").not(":checked").prop("disabled", bol);
// Create array of checked items - add on checked - remove on uncheck
var specialtyArray = $checked.map(function() {
return $(this).val();
});
console.log(specialtyArray.get());
});
// When Specialties modal closes, uncheck all checked boxes, reset count
$(document.body).on('click', '.close', function() {
$('.modal-body > #updateSpecForm > .columns').children().prop('checked', false);
$('#specCount').html(0);
})
// Fade out specialty tags when x is clicked
$(document.body).on('click', '.xOut', function() {
$(this).parent().fadeOut('slow', function() {
$(this).remove();
});
//uncheck the corresponding checkbox
$('input[name=specialty][value="' + $(this).closest('.specTag').attr('data-id') + '"]').prop('checked', false)
});
.Specialties {
background-color: #FFFFFF;
width: 350px;
height: 135px;
margin-left: 249px;
margin-top: 125px;
top: 0;
position: absolute;
z-index: 1;
}
.specTag {
background-color: #51b848;
color: #FFFFFF;
font-weight: 200;
letter-spacing: 1px;
font-size: 12px;
width: 150px;
height 30px;
padding: 8px;
position: relative;
margin-left: 10px;
margin-bottom: 5px;
border-radius: 5px;
display: inline-block;
}
.xOut {
background-color: #FFFFFF;
width: 25px;
padding: 3px;
position: absolute;
right: 5px;
text-align: center;
color: #333333;
top: 5px;
border-radius: 0 3px 3px 0;
cursor: pointer;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<form action="#" method="GET" id="updateSpecForm">
<!-- ATHLETIC TRAINER OPTIONS -->
<div class="columns" id="athleticTrainer">
<input type="checkbox" name="specialty" value="Boot Camp" />Boot Camp
<br />
<input type="checkbox" name="specialty" value="Children's Fitness" />Children's Fitness
<br />
<input type="checkbox" name="specialty" value="Circuit Training" />Circuit Training
<br />
<input type="checkbox" name="specialty" value="Core Training" />Core Training
<br />
<input type="checkbox" name="specialty" value="Cycling/Spinning" />Cycling/Spinning
<br />
<input type="checkbox" name="specialty" value="Dance" />Dance
<br />
<input type="checkbox" name="specialty" value="Flexibility/Balance" />Flexibility/Balance
<br />
<input type="checkbox" name="specialty" value="Meal Planning" />Meal Planning
<br />
<input type="checkbox" name="specialty" value="Men's Fitness" />Men's Fitness
<br />
<input type="checkbox" name="specialty" value="Women's Fitness" />Women's Fitness
<br />
</div>
<div class="Specialties">
<!-- SHOW BELOW DIV ONLY IF LOGGED IN -->
<!-- <div class="updateOn">+ Update My Specialties</div> -->
<!-- ***PRO CAN ADD UP TO 6 SPECIALY TAGS*** -->
</div>
</form>

Sometimes it's easier to compartmentalize code by setting parts of it into functions so that conditional aspects are easier to read through .
The biggest issue in your code was not testing if checkboxes were checked or not in the click handler.
Since the checkbox needs to do the same as the click on new tag does when it is unchecked, all logic flows through the change event of checkbox. Note that the click handler on X of tag triggers the change also
var maxChecked = 6;
// use change handler on checkboxes, will get triggered also below in another click handler
var $checkboxes = $('[name=specialty]').change(function() {
var value = $(this).val();
if(this.checked ){
addTag( value);
}else{
removeTag( value );
}
checkBoxStatus();
});
function removeTag(checkBoxValue){
/* we stored the checkbox value as data attribute, use that to filter*/
$('.specTag').filter(function(){
return $(this).data('value') === checkBoxValue;
}).slideUp(function(){
$(this).remove();
})
}
function addTag( checkBoxValue){
$newTag = $("<div class='specTag'>" + checkBoxValue + "<div class='xOut'>x</div></div>");
/* store the value in elment data so we can reference back to checkbox */
$newTag.data('value', checkBoxValue);
$('.Specialties').append($newTag);
}
/* use this to both disable and enable checkboxes */
function checkBoxStatus(){
var limitReached = $checkboxes.filter(':checked').length === maxChecked;
$checkboxes.not(':checked').prop('disabled',limitReached);
}
$(document.body).on('click', '.xOut', function () {
var $element = $(this).parent(),
$checkbox = $checkboxes.filter(function(){
return this.value === $element.data('value');
/* trigger change to remove element and reset disabled checkboxes */
}).prop('checked',false).change();
});
DEMO

Working fiddle:
http://jsfiddle.net/co5w7c9j/1/
// When specilaty is checked, add tag to profile page
$('[name=specialty]').click(function() {
$newTag = $("<div class='specTag'>" + $(this).attr('value') + "<div class='xOut'>x</div></div>");
$(this).attr('value');
$('.Specialties').append($newTag);
EnableDisableCheck();
// Create array of checked items - add on checked - remove on uncheck
specialtyArray = $('[name=specialty]:checked').map(function(){
return $(this).val();
// if item is in the array, then remove it from the DOM
if (jQuery.inArray($('[name=specialty]:checked').val(), specialtyArray) > -1) {
}
});
console.log(specialtyArray.get());
});
// When Specialties modal closes, uncheck all checked boxes, reset count
$(document.body).on('click', '.close', function () {
$('.modal-body > #updateSpecForm > .columns').children().removeAttr('checked');
$('#specCount').html(0);
})
// Fade out specialty tags when x is clicked
$(document.body).on('click', '.xOut', function () {
$(this).parent().fadeOut('slow');
$(this).parent().remove();
var text = $(this).parent().text();
$('[name=specialty]:checked').filter(function () {
return text.indexOf($(this).val()) > - 1;
}).removeAttr('checked');
EnableDisableCheck();
});
function EnableDisableCheck(){
if($('[name=specialty]:checked').length >=5)
{
$('[name=specialty]').attr("disabled","disabled");
}
else
{
$('[name=specialty]').removeAttr("disabled");
}
}

how can I dynamically resize an html textbox to avoid overflowing?

I would like to know how to resize a textbox to prevent text nearby it from overflowing.
I have 3 elements in a row, a label, a text box, and a button. the label however, can have words of varying lengths. if the word is too long it will move the text input too far to the side and the button will overflow onto the next line. to preserve the style of the page, I would prefer that the button stays on the same line as the other 2 elements.
I am trying to get the text box to shrink only as much as necessary to allow room for the other elements.
can I do this with JQuery?
Edit: here's the JFiddle thing:
http://jsfiddle.net/425ve/2/
and here's the main code:
<html>
<head>
<style>
body{
background-color:#000000;
color:#cccccc;
}
#chatbox{
width:100%;
height:85%;
border-style:solid;
border-color:#000000;
overflow:auto;
}
#mainchat{
width:82%;
float:left;
margin:0;
}
#sidebar{
float:left;
height:97%;
width:17%;
border-style:dashed;
border-width:1px;
border-color:#AAAAAA;
border-right:0;
border-top:0;
border-bottom:0;
overflow:auto;
}
#topbar{
border-style:dashed;
border-width:1px;
border-color:#AAAAAA;
border-left: 0;
border-top: 0;
float:left;
width:82%;
}
a{
color:#cccccc;
text-decoration:none;
}
a:hover{
color:#CCCCEE;
background-color:111122;
}
#topbarname{
float:right;
}
#message{
width: 90%;
background-color:#000000;
border-color:#CCCCCC;
border-style:solid;
border-width: 1px;
color:CCCCCC;
}
#submitbutton{
background-color:#000000;
border-color:#CCCCCC;
border-style:solid;
border-width: 1px;
color:#CCCCCC;
}
</style>
<script>
function getCookie(name) {
var dc = document.cookie;
var prefix = name + "=";
var begin = dc.indexOf("; " + prefix);
if (begin == -1) {
begin = dc.indexOf(prefix);
if (begin != 0) return null;
}
else
{
begin += 2;
var end = document.cookie.indexOf(";", begin);
if (end == -1) {
end = dc.length;
}
}
return unescape(dc.substring(begin + prefix.length, end));
}
function doSomething() {
var myCookie = getCookie("IceID");
if (myCookie == null) {
window.location="login.php"
}
else {
// do cookie exists stuff
}
}
doSomething();
</script>
</head>
<body>
<div id="topbar">
| Information | Logs | characters | Profile | Private logs | Messages | Logout |
</div>
<div id="mainchat">
<div id="chatbox">
<?php
include("getpost.php");
//improve this with AJAX!
?>
</div>
<div id="input">
<form id="inputchat">
<b id="name">
<?php
echo $_COOKIE['IceID'];
?>
</b>
<input type="text" name="message" id="message"></input>
<input type="submit" id="submitbutton" value="say"></input>
</form>
</div>
<div id="utools">
</div>
</div>
<div id="sidebar">
<div id="title">
A
</div>
<div id="list">
</div>
</div>
</body>
</html>
Edit:to clarify, the name doesn't actively change while the page is being used(only right before being displayed), but it will be different depending on who loads the page. their username fits into that label.

You don't need jQuery. jQuery could make it much simpler though. I prefer vanilla.
var left = document.getElementById('name')
var resizable = document.getElementById('message')
var right = document.getElementById('submitbutton')
realign()
window.addEventListener('resize', realign)
function realign() {
resizable.style.width = '0'
var extraWidth = getWidth(resizable) // Measure the border and padding on it's own.
resizable.style.width = getWidth(resizable.parentNode) - getWidth(left) - getWidth(right)
function getWidth(element) { // Superior to offsetWidth because it measures fractions of a pixel which is even more relevant when using the browser zoom feature.
var rect = element.getBoundingClientRect() // A accurate way to measure location on the screen.
return rect.right - rec.left // The accurate width.
}
}
The only adjustment you need would be to fix my typo(s) if I made any and then if you want to support older versions of IE, you need to use the alternative to addEventListener, Google it.