diff --git a/CHANGELOG.md b/CHANGELOG.md index 7ccfc53..9a178a3 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -2,6 +2,10 @@ ## Version 17 +#### 17.9.0 + +- Allowing to pass empty string (`""`) as value for class options (`class_loading`, `class_applied`, `class_loaded`, `class_error`, `class_entered`, `class_exited`) so that no DOM mutation will happen if not necessary. This is a potential performance improvement. Suggested in [#605](https://github.com/verlok/vanilla-lazyload/issues/605). + #### 17.8.8 - Fixed dependency issues detected by `npm audit` diff --git a/README.md b/README.md index 88db322..010be8d 100644 --- a/README.md +++ b/README.md @@ -175,7 +175,7 @@ Please note that the video poster can be lazily loaded too. ## 👩‍💻 Getting started - Script -The latest, recommended version of LazyLoad is **17.8.8**. +The latest, recommended version of LazyLoad is **17.9.0**. Quickly understand how to upgrade from a previous version reading the [practical upgrade guide](UPGRADE.md). @@ -184,7 +184,7 @@ Quickly understand how to upgrade from a previous version reading the [practical The easiest way to use LazyLoad is to include the script from a CDN: ```html - + ``` Then, in your javascript code: @@ -225,7 +225,7 @@ Then include the script. ```html ``` @@ -259,7 +259,7 @@ Then include the script. ```html ``` diff --git a/demos/image_no_classes.html b/demos/image_no_classes.html new file mode 100644 index 0000000..1b23005 --- /dev/null +++ b/demos/image_no_classes.html @@ -0,0 +1,494 @@ + + + + + + Basic - Lazyload demos + + + + + + +

Basic demo

+
+ +
+ + + + diff --git a/dist/lazyload.amd.js b/dist/lazyload.amd.js index a06c297..f9680ad 100644 --- a/dist/lazyload.amd.js +++ b/dist/lazyload.amd.js @@ -167,6 +167,9 @@ define(function () { 'use strict'; }; var addClass = function addClass(element, className) { + if (className === "") { + return; + } if (supportsClassList) { element.classList.add(className); return; @@ -174,6 +177,9 @@ define(function () { 'use strict'; element.className += (element.className ? 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"vanilla-lazyload", - "version": "17.8.8", + "version": "17.9.0", "description": "LazyLoad is a lightweight (2.4 kB) and flexible script that speeds up your web application by deferring the loading of your below-the-fold images, videos and iframes to when they will enter the viewport. It's written in plain \"vanilla\" JavaScript, it leverages the IntersectionObserver API, it supports responsive images, it optimizes your website for slower connections, and can enable native lazy loading.", "main": "dist/lazyload.min.js", "module": "dist/lazyload.esm.js", diff --git a/src/class.js b/src/class.js index 7e63876..735e015 100644 --- a/src/class.js +++ b/src/class.js @@ -1,6 +1,9 @@ import { supportsClassList } from "./environment"; export const addClass = (element, className) => { + if (className === "") { + return; + } if (supportsClassList) { element.classList.add(className); return; @@ -9,6 +12,9 @@ export const addClass = (element, className) => { }; export const removeClass = (element, className) => { + if (className === "") { + return; + } if (supportsClassList) { element.classList.remove(className); return;