I want to get the text in which I clicked on, So if I click on word "mother" the log just show this word "mother", even if it's inside an span with another word,
I used this code but it doesn't even select the spans :
function getSelectedText(e) {
if(window.getSelection)
return console.log(window.getSelection().toString());
else if(document.getSelection)
return console.log(document.getSelection());
else if(document.selection)
return console.log(document.selection.createRange().text);
return console.log("");
}
document.body.onmouseup = getSelectedText;
<div class="destination">
<span class="word">sister mother</span>
<span class="word" >brother</span>
<span class="word" >father</span>
</div>
<h1>hi</h1>
The span-split option will work in all browsers and without using third-party libraries.
<body>
<style>
.container{
display: flex;
gap: 5px;
flex-wrap: wrap;
}
</style>
<div id="root" class = "container"></div>
<script>
var text = 'Soon after this, I started working with Kitty, who has volunteered at the shelter for years, so she knew all the lay of the land and was super helpful.'
var container = document.getElementById("root")
text.split(' ').forEach((word)=>{
var newWord = document.createElement("span")
newWord.innerText = word
newWord.className = 'myClass'
container.appendChild(newWord)
})
function handler(event) {
if (event.target.className === "myClass"){
console.log(event.target.textContent)
}
}
document.addEventListener('click',handler,false)
</script>
</body>
function highlight(span) {
span.classList.toggle("highlight");
//select the text and do what ever
var selectedText = span.innerHTML;
alert(selectedText);
}
.highlight {
background-color: lightblue;
}
<span onclick="highlight(this)">sister mother</span>
<span onclick="highlight(this)">brother</span>
<span onclick="highlight(this)">father</span>
Related
I am "emulating" a Gravity Form. I am using a previous button for my form. I know the best way to solve the problem is by 'telling' the function the id of the current div (display: block) but I don't know how.
In the first part of the code, I show or hide divs based on the selected option of the tag select, now, in the second one is where I configure the "previous button".
<script>
function yesnoCheck(that) {
if (that.value == "2") {
document.getElementById("b").style.display = "block";
document.getElementById("a").style.display = "none";
<?php $new="b" ?>
} else {
document.getElementById("a").style.display = "none";
document.getElementById("d").style.display = "block";
}
}
</script>
<script>
function yesnoCheck2(that) {
if (that.value != " ") {
document.getElementById("c").style.display = "block";
document.getElementById("a").style.display = "none";
document.getElementById("b").style.display = "none";
<?php $new="c" ?>
} else {
document.getElementById("a").style.display = "none";
}
}
</script>
<script>
function yesnoCheck3(that) {
if (that.value != " ") {
document.getElementById("d").style.display = "block";
document.getElementById("c").style.display = "none";
<?php $new="f" ?>
} else {
document.getElementById("c").style.display = "none";
}
}
</script>
<script>
function yesnoCheck4(that) {
if (that.value.length == 8) {
document.getElementById("tform").style.display = "block";
} else {
document.getElementById("tform").style.display = "none";
}
}
</script>
It isn't entirely clear what you're trying to do, but what I think you're trying to do is navigate through a set of sections in a form as if they were different pages.
One really easy way to do this is to use the :target CSS selector, which allows you to select elements that match the ID of the current page's anchor fragment. For example, if I had a section with the ID of main, and the URL was something like https://example.com/#main, I could use section:target to show that section.
Here's a full example for you. HTML:
<section id="one">
<h1>Section 1</h1>
<p>
This is section one. Content goes here.
</p>
Next
</section>
<section id="two">
<h1>Section 2</h1>
<p>
This is section two. More content goes here.
</p>
Previous
Next
</section>
<section id="three">
<h1>Section 3</h1>
<p>
This is the last section.
</p>
Previous
</section>
CSS:
.button {
background: #333;
color: #fff;
text-decoration: none;
padding: 0.5em 1em;
border-radius: 0.3em;
}
section {
display: none;
}
section:target {
display: block;
}
Finally, some JavaScript to initialize things:
// Default to the first section
if (!location.hash.substr(1)) {
location.hash = 'one';
}
The buttons are just links to the next section, by way of anchor fragment.
This example is up on JSFiddle here: https://jsfiddle.net/91pnc3gf/
I'm very inexperienced in javascript but have managed (with the help of google) to put together the following expandable/collapsible link
<script type="text/javascript">
function toggleMe(a) {
var e = document.getElementById(a);
if(!e) return true;
if(e.style.display == "none") {
e.style.display = "block"
}
else {
e.style.display = "none"
}
return true;
}
</script>
<p>
<input onclick="return toggleMe('para1')" style="font-size:18px; color:#008080;" type="text" value="LINK TO EXPAND" />
</p>
<p id="para1">
<strong><em>text text text text</em></strong>
</p>
The only problem with it is that it is expanded by default and I wanted it collapsed by default. Can anyone help with this? Thank you!
Also, if anyone knows how to get +/- signs next to the link that change depending on whether it is expanded or collapsed, that would be great.
<script type="text/javascript">
function toggleMe(a) {
var e = document.getElementById(a);
var toggleIcon = document.getElementById('toggle-icon');
if(!e) return true;
if(e.style.display == "none") {
e.style.display = "block";
toggleIcon.innerHTML = '-';
}
else {
e.style.display = "none";
toggleIcon.innerHTML = '+';
}
return true;
}
</script>
<p>
<input onclick="return toggleMe('para1')" style="font-size:18px; color:#008080;" type="text" value="LINK TO EXPAND" />
<span id="toggle-icon">+</span>
</p>
<p id="para1" style="display: none;">
<strong><em>text text text text</em></strong>
</p>
You can try putting in style statement the display option like below:
<p id="para1" style="display:none"><strong><em>text text text text</em></strong></p>
That can default collapse when you open your html, hope it help you...
Options 1:
Add this to your css to hide it by default:
#para1 {
display: none;
}
Options 2:
Move your script down, and call it initially toggleMe('para1'); so you will hide it first.
<p>
<input onclick="return toggleMe('para1')" style="font-size:18px; color:#008080;" type="text" value="LINK TO EXPAND" />
</p>
<p id="para1">
<strong><em>text text text text</em></strong>
</p>
<script type="text/javascript">
function toggleMe(a) {
var e = document.getElementById(a);
if(!e) return true;
if(e.style.display == "none") {
e.style.display = "block"
}
else {
e.style.display = "none"
}
return true;
}
toggleMe('para1');
</script>
Daniel has the correct answer to your question. This is a bit more than you asked for, but I think you will have a better time if you manipulate classes instead of element styles properties. Just makes it a bit more flexible.
In the example below I wrapped your code in a common element and then changed that element's class to achieve your desired effect. That let me easily add in your plus and minus too.
It's a little raw but you can see where this can take you. Hope it helps.
https://jsfiddle.net/6xoe1b94/
function toggleMe(a) {
var e = document.getElementById('wrapper');
if(! e.classList.contains('active')) {
e.classList.add('active');
}
else {
e.classList.remove('active');
}
}
#para1{
display:none;
}
.active #para1{
display:block;
}
#plus{
display:inline-block;
}
#minus{
display:none;
}
.active #plus{
display:none;
}
.active #minus{
display:inline-block;
}
<div id='wrapper'>
<p>
<input onclick="return toggleMe('para1')" style="font-size:18px; color:#008080;" type="text" value="LINK TO EXPAND" /><span id='plus'>+</span><span id='minus'>-</span>
</p>
<p id="para1">
<strong><em>text text text text</em></strong>
</p>
</div>
I added a solution that removes the javascript and css from your html. I also changed your expand/collapse element to a div instead of input. I've added a span element within the div that changes it's text content (either + or -) based on whether #para1 is displayed or not. Also, in css I added display: none; to #para1 (this initially hides the element), cursor: pointer; (shows it is clickable when the user hovers over it) user-select: none; (stop div from highlighting when user clicks on it).
// store elements
var expandEl = document.getElementById("expand");
var plusMinusEl = document.getElementById("plusMinus");
var para1El = document.getElementById("para1");
// toggle function: pass element as argument
function toggleMe(el) {
// check if element is hidden
if(el.offsetParent === null) {
plusMinusEl.textContent = "-";
el.style.display = "block"
}
else {
plusMinusEl.textContent = "+";
el.style.display = "none"
}
}
// click function for expand div
expandEl.addEventListener("click", function() {toggleMe(para1El)});
#expand {
font-size:18px;
color:#008080;
cursor: pointer;
user-select: none; /* stop div from highlighting */
}
#para1 {
display: none;
}
<div id="expand">
LINK TO EXPAND <span id="plusMinus">+</span>
</div>
<p id="para1"><strong><em>text text text text</em></strong></p>
I would like to display a text copied from a site, for example Wikipedia, in a div. This text has to be strictly without the tags that the computer copies with the text from wikipedia.
I think that the solution is to set a sort of formatting of the text but I don't know.
This is how it should be (Press OK). But I don't want to paste the text in the code, I have to paste the text in the textarea.
In fact if you try to paste something from Wikipedia in the textarea of this Jsfiddle you will see that the result is horrible and with all the html tags.
HTML:
<div id="faketxt" contenteditable></div>
<button id='btn'>OK</button>
<button class="fontStyle" onclick="document.execCommand( 'bold',false,null);" title="Bold Highlighted Text"><b>B</b>
</button>
<button class="fontStyle" onclick="document.execCommand( 'underline',false,null);"><u>U</u>
</button> <br>
<div id='boxes'>
</div>
CSS:
#faketxt {
-moz-appearance: textfield-multiline;
-webkit-appearance: textarea;
border: 1px solid gray;
height: 28px;
overflow: auto;
padding: 2px;
resize: both;
width: 400px;
}
.fakes{
width: 150px;
height: 300px;
font-size: 10px;
border-style: solid;
display:inline-block;
float: left;
}
#boxes{
display : flex;
display:inline-block;
}
jQuery:
$('#btn').click(function() {
var primo = document.getElementById('faketxt');
var wordLimit = 130;
var words = primo.innerHTML.replace(/(<([^>]+)>)/ig,"").split(/\s/);
if (words.length) {
var count = 0;
var div = createDiv();
var bold = false;
words.forEach(function(word) {
if (++count > wordLimit) {
count = 1;
div = createDiv();
}
if (div.innerHTML) {
div.append(' ');
}
if (word.indexOf('<b>') != -1) {
bold = true;
}
if (bold) {
$(div).html($(div).html() + '<b>' +
word + '</b>');
} else {
$(div).html($(div).html() +
word);
}
if (word.indexOf('</b>') != -1) {
bold = false;
}
});
}
});
function createDiv() {
div = document.createElement('div');
div.className = 'fakes';
document.getElementById('boxes').append(div);
return div;
}
innerHTML or jquery's $.html() will pull the content (including HTML) of an element. But textContent or jquery's $.text() will just get the text.
Instead of var words = primo.innerHTML have you tried using var words = primo.textContent or var words = $(primo).text()?
try using
words = primo.textContent.replace(/(<^>]+)>)/ig,"").split(/\s/);
instead of
words = primo.innerHTML.replace(/(<([^>]+)>)/ig,"").split(/\s/);
Rather than getting the innerHTML of the source, simply get the text content using either the javascript or JQuery text() functions.
So, given you are using jQuery, change your words variable to initialise as follows.
var words = $(primo).text().split(/\s/);
I am trying to work out to select a delete icon in my own web application. delectIcon
HTML
<main>
<div class="container">
<div class="tabs">
<p><span class="active">Newest</span></p><a href=""><p>
<span>Oldest</span></p></a><p><span>Add</span></p>
</div>
<div class="content">
<ul>
<li>
<span class="itemLeft">Answer emails</span>
<span class="itemMiddle">12-31-2016</span>
<span class="itemRight">1</span>
<b class="deleteIcon"> X </b>
</li>
<li>
<span class="itemLeft">Prep for Monday's class</span>
<span class="itemMiddle">12-31-2016</span>
<span class="itemRight">5</span>
<b class="deleteIcon"> X </b>
</li>
</ul>
</div>
</div>
</main>
JavaScript
$(".deleteIcon").on("click", function () {
alert("Oh, clicked!");
return false;
});
I failed to do so by writing it myself. So I used Chrome Web Developer Tool to find the CSS path. I tried to use the XPath($"[/html/body/main/div/div[2]/ul/li[ 1 ]/b]") and CSS Path ($"(pathbody > main > div > div.content > ul > li:nth-child(1) > b)"). Neither of them worked.
I tried to mark it with an ID and made only one "li" exists. The CSS selector worked all right. But when I clicked the deleteIcon$"(#deleteIcon)", nothing happened.
#deleteIcon{
float:right;
font-weight: bold;
padding: 0 3px 0 3px;
border-radius: 5px;
background: #ccc;
cursor: pointer;
margin-left: 5px;
font-size: 1.3em;
text-align: center;
}
I also tried to select my title. I found the following worked out.
$(".container h1").on("click", function () {
alert("Oh, no!");
return false;
});
I do not what to do now. Can anyone help me out here?
Thank you! I would be really appreciate if you can answer my question.
Adding more details:
I did actually add the deleteIcon into the HTML by JavaScript. I do not know whether this can have an effect on my selector.
Actual HTML
<main>
<div class="container">
<div class="tabs">
<p><span class="active">Newest</span></p><a href=""><p>
<span>Oldest</span></p></a><p><span>Add</span></p>
</div>
<div class="content">
</div>
</div>
</main>
JavaScript (The important part listed below)
function Item(name,dueDate,type){
this.name=name;//1
this.dueDate=dueDate;//input2
this.type=type;//3
};
$(".tabs a span").toArray().forEach(function (element) {
var $element = $(element);
// create a click handler for this element
$element.on("click", function () {
var $content,
$input,
$button,
i;
if ($element.parent().parent().is(":nth-child(1)")) {
// newest first, so we have to go through
// the array backwards
$content = $("<ul>");
for (i = Task.length-1; i >= 1; i--) {
// $buttondelete = $("<buttonDelete>").text("X");
var txt1 = Task[i].toStringName();
var txt2 = Task[i].toStringDate();
var txt3 = Task[i].toStringType();
//alert(txt3);
$content.append('<li> <span class="itemLeft">'+txt1+'</span> <span class="itemMiddle">'+txt2+'</span> <span class="itemRight">'+txt3+'</span><b class="deleteIcon"> X </b>');
}
}
$("main .content").append($content);
return false;
});
});
If you are creating the items inside ul dynamically you should bind the click event like this :
$(".content").on("click", ".deleteIcon", function()
{
alert("clicked") ;
return false;
}
) ;
The class selector starts with a . (just like the example you say you have that works).
Try
$(".deleteIcon").on("click", function () {
alert("Oh, clicked!");
return false;
});
I am needing to create a show more/less text function, but with just JavaScript and HTML.. I can't use any additional libraries such as jQuery and it can't be done with CSS. The sample code I have added displays the 'more' text, but not the 'less'.
If someone could point me in the right direction, it would be much appreciated.
I've spent the majority of the day frying my brain over this, as its clearly not the modern way to do it, however, my HTML is:
<html>
<head>
<script type="text/javascript" src="moreless.js"></script>
</head>
<body>
Lorem ipsum dolor sit amet
<p>
<p id="textarea"><!-- This is where I want to additional text--></div>
</p>
<a onclick="showtext('text')" href="javascript:void(0);">See More</a>
<p>
Here is some more text
</body>
</html>
and my JavaScript is (moreless.js):
function showtext()
{
var text="Here is some text that I want added to the HTML file";
document.getElementById("textarea").innerHTML=text;
}
My answer is similar but different, there are a few ways to achieve toggling effect. I guess it depends on your circumstance. This may not be the best way for you in the end.
The missing piece you've been looking for is to create an if statement. This allows for you to toggle your text.
More on if statements here.
JSFiddle: http://jsfiddle.net/8u2jF/
Javascript:
var status = "less";
function toggleText()
{
var text="Here is some text that I want added to the HTML file";
if (status == "less") {
document.getElementById("textArea").innerHTML=text;
document.getElementById("toggleButton").innerText = "See Less";
status = "more";
} else if (status == "more") {
document.getElementById("textArea").innerHTML = "";
document.getElementById("toggleButton").innerText = "See More";
status = "less"
}
}
With some HTML changes, you can absolutely achieve this with CSS:
Lorem ipsum dolor sit amet
<p id="textarea">
<!-- This is where I want to additional text-->
All that delicious text is in here!
</p>
<!-- the show/hide controls inside of the following
list, for ease of selecting with CSS -->
<ul class="controls">
<li class="show">Show</li>
<li class="hide">Hide</li>
</ul>
<p>Here is some more text</p>
Coupled with the CSS:
#textarea {
display: none; /* hidden by default */
}
#textarea:target {
display: block; /* shown when a link targeting this id is clicked */
}
#textarea + ul.controls {
list-style-type: none; /* aesthetics only, adjust to taste, irrelevant to demo */
}
/* hiding the hide link when the #textarea is not targeted,
hiding the show link when it is selected: */
#textarea + ul.controls .hide,
#textarea:target + ul.controls .show {
display: none;
}
/* Showing the hide link when the #textarea is targeted,
showing the show link when it's not: */
#textarea:target + ul.controls .hide,
#textarea + ul.controls .show {
display: inline-block;
}
JS Fiddle demo.
Or, you could use a label and an input of type="checkbox":
Lorem ipsum dolor sit amet
<input id="textAreaToggle" type="checkbox" />
<p id="textarea">
<!-- This is where I want to additional text-->
All that delicious text is in here!
</p>
<label for="textAreaToggle">textarea</label>
<p>Here is some more text</p>
With the CSS:
#textarea {
/* hide by default: */
display: none;
}
/* when the checkbox is checked, show the neighbouring #textarea element: */
#textAreaToggle:checked + #textarea {
display: block;
}
/* position the checkbox off-screen: */
input[type="checkbox"] {
position: absolute;
left: -1000px;
}
/* Aesthetics only, adjust to taste: */
label {
display: block;
}
/* when the checkbox is unchecked (its default state) show the text
'Show ' in the label element: */
#textAreaToggle + #textarea + label::before {
content: 'Show ';
}
/* when the checkbox is checked 'Hide ' in the label element; the
general-sibling combinator '~' is required for a bug in Chrome: */
#textAreaToggle:checked ~ #textarea + label::before {
content: 'Hide ';
}
JS Fiddle demo.
Try to toggle height.
function toggleTextArea()
{
var limitedHeight = '40px';
var targetEle = document.getElementById("textarea");
targetEle.style.height = (targetEle.style.height === '') ? limitedHeight : '';
}
This is my pure HTML & Javascript solution:
var setHeight = function (element, height) {
if (!element) {;
return false;
}
else {
var elementHeight = parseInt(window.getComputedStyle(element, null).height, 10),
toggleButton = document.createElement('a'),
text = document.createTextNode('...Show more'),
parent = element.parentNode;
toggleButton.src = '#';
toggleButton.className = 'show-more';
toggleButton.style.float = 'right';
toggleButton.style.paddingRight = '15px';
toggleButton.appendChild(text);
parent.insertBefore(toggleButton, element.nextSibling);
element.setAttribute('data-fullheight', elementHeight);
element.style.height = height;
return toggleButton;
}
}
var toggleHeight = function (element, height) {
if (!element) {
return false;
}
else {
var full = element.getAttribute('data-fullheight'),
currentElementHeight = parseInt(element.style.height, 10);
element.style.height = full == currentElementHeight ? height : full + 'px';
}
}
var toggleText = function (element) {
if (!element) {
return false;
}
else {
var text = element.firstChild.nodeValue;
element.firstChild.nodeValue = text == '...Show more' ? '...Show less' : '...Show more';
}
}
var applyToggle = function(elementHeight){
'use strict';
return function(){
toggleHeight(this.previousElementSibling, elementHeight);
toggleText(this);
}
}
var modifyDomElements = function(className, elementHeight){
var elements = document.getElementsByClassName(className);
var toggleButtonsArray = [];
for (var index = 0, arrayLength = elements.length; index < arrayLength; index++) {
var currentElement = elements[index];
var toggleButton = setHeight(currentElement, elementHeight);
toggleButtonsArray.push(toggleButton);
}
for (var index=0, arrayLength=toggleButtonsArray.length; index<arrayLength; index++){
toggleButtonsArray[index].onclick = applyToggle(elementHeight);
}
}
You can then call modifyDomElements function to apply text shortening on all the elements that have shorten-text class name. For that you would need to specify the class name and the height that you would want your elements to be shortened to:
modifyDomElements('shorten-text','50px');
Lastly, in your your html, just set the class name on the element you would want your text to get shorten:
<div class="shorten-text">Your long text goes here...</div>
I hope this helps you. Here is the functionality:
When text characters is less than or equal to 12. Then it displays the whole text and also does not display the more/less button
When text characters is more than 12. Displays only 12 characters of the text and also a More button which when pressed, shows the whole text.
When the More button is pressed the button changes to Less
Read more string manipulation in w3schools: String Manipulation or
Mozila: String Manipulation
var startStatus = "less";
function toggleText() {
var text = "Here is the text that I want to play around with";
if (text.length > 12) {
if (startStatus == "less") {
document.getElementById("textArea").innerHTML = `${text.substring(0, 12)}...`;
document.getElementById("more|less").innerText = "More";
startStatus = "more";
} else if (startStatus == "more") {
document.getElementById("textArea").innerHTML = text;
document.getElementById("more|less").innerText = "Less";
startStatus = "less";
}
} else {
document.getElementById("textArea").innerHTML = text;
}
}
toggleText();
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
</head>
<body>
<div>
<p id="textArea">
<!-- This is where i want text displayed-->
</p>
<span><a
id="more|less"
onclick="toggleText();"
href="javascript:void(0);"
></a
></span>
</div>
</body>
</html>
This should resolve your problem:
function toggleSeeMore() {
if(document.getElementById("textarea").style.display == 'none') {
document.getElementById("textarea").style.display = 'block';
document.getElementById("seeMore").innerHTML = 'See less';
}
else {
document.getElementById("textarea").style.display = 'none';
document.getElementById("seeMore").innerHTML = 'See more';
}
}
The complete working example is here: http://jsfiddle.net/akhikhl/zLA5K/
Hope this Code you are looking for
HTML:
<div class="showmore">
<div class="shorten_txt">
<h4> ##item.Title</h4>
<p>Your Text Your Text Your Text Your Text Your Text Your Text Your Text Your Text Your Text Your Text Your Text Your Text Your Text Your Text Your Text Your Text Your Text </p>
</div>
</div>
SCRIPT:
var showChar = 100;
var ellipsestext = "[...]";
$('.showmore').each(function () {
$(this).find('.shorten_txt p').addClass('more_p').hide();
$(this).find('.shorten_txt p:first').removeClass('more_p').show();
$(this).find('.shorten_txt ul').addClass('more_p').hide();
//you can do this above with every other element
var teaser = $(this).find('.shorten_txt p:first').html();
var con_length = parseInt(teaser.length);
var c = teaser.substr(0, showChar);
var h = teaser.substr(showChar, con_length - showChar);
var html = '<span class="teaser_txt">' + c + '<span class="moreelipses">' + ellipsestext +
'</span></span><span class="morecontent_txt">' + h
+ '</span>';
if (con_length > showChar) {
$(this).find(".shorten_txt p:first").html(html);
$(this).find(".shorten_txt p:first span.morecontent_txt").toggle();
}
});
$(".showmore").click(function () {
if ($(this).hasClass("less")) {
$(this).removeClass("less");
} else {
$(this).addClass("less");
}
$(this).find('.shorten_txt p:first span.moreelipses').toggle();
$(this).find('.shorten_txt p:first span.morecontent_txt').toggle();
$(this).find('.shorten_txt .more_p').toggle();
return false;
});
<script type="text/javascript">
function showml(divId,inhtmText)
{
var x = document.getElementById(divId).style.display;
if(x=="block")
{
document.getElementById(divId).style.display = "none";
document.getElementById(inhtmText).innerHTML="Show More...";
}
if(x=="none")
{
document.getElementById(divId).style.display = "block";
document.getElementById(inhtmText).innerHTML="Show Less";
}
}
</script>
<p id="show_more1" onclick="showml('content1','show_more1')" onmouseover="this.style.cursor='pointer'">Show More...</p>
<div id="content1" style="display: none; padding: 16px 20px 4px; margin-bottom: 15px; background-color: rgb(239, 239, 239);">
</div>
if more div use like this change only 1 to 2
<p id="show_more2" onclick="showml('content2','show_more2')" onmouseover="this.style.cursor='pointer'">Show More...</p>
<div id="content2" style="display: none; padding: 16px 20px 4px; margin-bottom: 15px; background-color: rgb(239, 239, 239);">
</div>
demo
jsfiddle
I'm not an expert, but I did a lot of looking to implement this for myself. I found something different, but modified it to accomplish this. It's really quite simple:
The function takes two arguments, a div containing only the words "show more" [or whatever] and a div containing the originally hidden text and the words "show less." The function displays the one div and hides the other.
NOTE: If more than one show/hide on page, assign different ids to divs
Colors can be changed
<p>Here is text that is originally displayed</p>
<div id="div1">
<p style="color:red;" onclick="showFunction('div2','div1')">show more</p></div>
<div id="div2" style="display:none">
<p>Put expanded text here</p>
<p style="color:red;" onclick="showFunction('div1','div2')">show less</p></div>
<p>more text</p>
Here is the Script:
<script>
function showFunction(diva, divb) {
var x = document.getElementById(diva);
var y = document.getElementById(divb);
x.style.display = 'block';
y.style.display = 'none';
}
</script>
You can also use details HTML tag which does the work for you.
<details>
<summary>Epcot Center</summary>
<p>Epcot is a theme park at Walt Disney World Resort featuring exciting attractions, international pavilions, award-winning fireworks and seasonal special events.</p>
</details>
Source W3CSchool