Long Content Truncation With Show More/Less Links – show-more

Category: Javascript , Text | September 20, 2022
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Last Update:September 20, 2022


Long Content Truncation With Show More/Less Links – show-more


show-more is a feature-rich JavaScript library that truncates long contents and replaces the overflowing content with show more and show less links.


  • Truncates text to a specified number of characters.
  • Truncates an HTML list to a specified number of list items.
  • Truncates an HTML table to a specified number of records (rows).

How to use it:

1. Download and insert the show-more library into the HTML document.

<script src="showMore.min.js"></script>

2. Truncate your long text to a number of characters.

<p class="demo-1" data-config="{ 'type': 'text', 'limit': 140, 'more': '&#8594; show more', 'less': '&#8592; less' }">
  Long Text Here

3. Truncate your long HTML list.

<ul class="demo-2" data-config="{ 'type': 'list', 'limit': 5, 'element': 'li', 'more': '&#8594; show more', 'less': '&#8592; less', "number": true }">
  <li>List Item 1</li>
  <li>List Item 2</li>
  <li>List Item 3</li>
  <li>List Item 4</li>
  <li>List Item 5</li>
// hide the overflowing list items
.hidden {

4. Truncate a large HTML table and display the number next to the toggle button.

<table class="demo-3" data-config="{ 'type': 'table', 'limit': 140, 'number': true, 'more': '&#8594; show more', 'less': '&#8592; less' }">
  Large HTML Table Here
// hide the overflowing table rows
.hidden {

5. Customize the styles of the show more & show less buttons.

.show-more, .show-less {
  cursor: pointer;
  color: #222;

6. Determine the number of content to be displayed after the show more & show less buttons.

<p class="demo-1" data-config="{ 'type': 'text', 'limit': 140, 'after': 50 }">
  Long Text Here

7. You’re also allowed to initialize the plugin via JavaScript.

new ShowMore('.elementClass', {
    type: 'li',
    more: '&#8595; show more',
    less: '&#8593; less',
    number: true,
    ellipsis: false // show only the ellipsis

8. All configs.

  // text, list or table
  type: 'text',
  // number of characters/rows/elements to preserve
  limit: 5,
  // number of hidden items to show more/less
  number: 10,
  // checks how much text is after the trimmed text the limit parameter, if the text is less than the after parameter does not add a more/less button
  after: 50,
  // element to hold the show more/less text
  element: null,
  // adds an ellipsis to shortened text
  ellipsis: true,
  // custom more/less text
  more: 'More',
  less: 'Less',
  // button class
  btnClass: 'show-more-btn',
  // ppportunity to add additional classes to the button
  btnClassAppend: 'cssClass',
  // hide the button
  nobutton: true,

9. Truncate content using your own regular expression.

new ShowMore('.elementClass', {
  regex: {
    image: {
      match: /<img([\w\W]+?)[/]?>/g,
      replace: ''

10. Callback function.

new ShowMore('.demo-2', {
    onMoreLess: (type, object) => {
      // type = less/more and full object
      console.log(typeAria, object);


v1.1.6 (09/20/2022)

  • Fixed number: true does not work for inline lists (<li>)

v1.1.5 (07/04/2022)

  • Fixed Bug with table button

v1.1.4 (05/27/2022)

  • remove console.log

v1.1.3 (05/09/2022)

  • new props “nobutton” Diable showing the read more/less button

v1.1.2 (01/30/2022)

  • Fixed for Firefox

v1.1.1 (01/15/2022)

  • separate file compatible with IE

v1.1.0 (11/23/2021)

  • drop IE
  • add ‘loose’ parameter – smaller library
  • new dist folder width iife, umd and esm library, also minimized files

v1.0.20 (09/22/2021)

  • Added global configuration

v1.0.19 (09/08/2021)

  • update

v1.0.17 (06/12/2021)

  • HTML tags (experimentally)

v1.0.16 (05/25/2021)

  • fix The error occurs when an object is missing

v1.0.15 (05/25/2021)

  • fix Problem with truncated after 1-2 characters

v1.0.14 (05/23/2021)

  • add an ellipsis to the text by default

v1.0.13 (05/07/2021)

  • Bugfixes

v1.0.12 (05/07/2021)

  • fix Issue with Cyrillic characters

v1.0.11 (02/10/2021)

  • Usability replacing span on button

v1.0.10 (01/30/2021)

  • Added callback function ‘onAction’

v1.0.9 (01/18/2021)

  • fix: no less element

v1.0.8 (01/16/2021)

  • feat only ellipses with no buttons

v1.0.7 (10/30/2020)

  • Update

v1.0.6 (09/29/2020)

  • Feat reducing the size of the library
  • Refactor small changes scss

v1.0.5 (08/23/2020)

  • transferred configuration to JSON in html data-config

v1.0.4 (08/22/2020)

  • New parameter showNumber

v1.0.3 (08/06/2020)

  • fix ability to disable the (less) option

v1.0.2 (07/12/2020)

  • refactoring

v1.0.1 (06/27/2020)

  • refactoring

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