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Please note this package has been renamed into ngx-scrollreveal starting v3.0.0.

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2.2.0 • Public • Published

ng-scrollreveal - Angular directives for ScrollReveal JS

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ScrollReveal JS is a great library that allows easy scroll animations for web and mobile browsers.


View all the directives in action at


  • Angular (requires Angular 2 or higher, tested with 2.0.0)
  • ScrollReveal (requires ScrollReveal 3.2 or higher, tested with 3.2.0)


Install above dependencies via npm. In particular for ScrollReveal JS, run:

npm install --save scrollreveal

To avoid compilation warnings during development, you can also install the typings for ScrollReveal JS :

npm install --save-dev @types/scrollreveal


Note: If you are using angular-cli to build your app, make sure that scrollreveal is properly listed as a global library, by editing your angular-cli.json as such:

      "scripts": [

Note:If you are using SystemJS, you should adjust your configuration to point to the UMD bundle. In your systemjs config file, map needs to tell the System loader where to look for ng-scrollreveal:

map: {
  'ng-scrollreveal': 'node_modules/ng-scrollreveal/bundles/ng-scrollreveal.min.js',

In your systemjs config file, meta needs to tell the System loader how to load scrollreveal:

    meta: {
    './node_modules/scrollreveal/dist/scrollreveal.min.js': {
            format: 'amd'

In your index.html file, add script tag to load scrollreveal globally:

    <!-- 1. Configure SystemJS -->
    <script src="system.config.js"></script> 
    <!-- 2. Add scrollreveal dependency-->
    <script src="node_modules/scrollreveal/dist/scrollreveal.min.js"></script> 

Now install ng-scrollreveal via:

npm install --save ng-scrollreveal

Once installed you need to import the main module:

import {NgsRevealModule} from 'ng-scrollreveal';

The only remaining part is to list the imported module in your application module. The exact method will be slightly different for the root (top-level) module for which you should end up with the code similar to (notice NgsRevealModule.forRoot()):

import {NgsRevealModule} from 'ng-scrollreveal';
  declarations: [AppComponent, ...],
  imports: [NgsRevealModule.forRoot(), ...],  
  bootstrap: [AppComponent]
export class AppModule {

Other modules in your application can simply import NgsRevealModule:

import {NgsRevealModule} from 'ng-scrollreveal';
  declarations: [OtherComponent, ...],
  imports: [NgsRevealModule, ...], 
export class OtherModule {


The library is composed of two main directives: ngsReveal and ngsRevealSet.

ngsReveal Directive

Use this directive to reveal/hide a single DOM element upon scroll.

Basic Usage:
    <div class="item" ngsReveal>..</div>
With Custom Options:

You can also pass in a custom configuration object to the directive.

    <div class="item" [ngsReveal]="{ reset: true}" >..</div>

This will override the default configuration used when revealing this particular element. When no configuration is passed in, the directive uses the default configuration defined at component or at application level.

Configuration options are the same as ScrollReveal JS configuration object.

ngsRevealSet Directive

Use this directive to reveal/hide a set of DOM elements upon scroll.

[ngsSelector] attribute is required, and defines which child items must be revealed/hidden on scroll.

Note: The value is a list of CSS selectors (comma-separated).

Basic Usage:
    <div class="itemset" ngsRevealSet [ngsSelector]="'.item'">
        <div class="item item1">Item 1</div>
        <div class="item item2">Item 2</div>
        <div class="item item3">Item 3</div>
        <div class="item item4">Item 4</div>
        <div class="item5">Item 5 (will not be animated)</div>
With Custom Options:
    <div class="itemset" [ngsRevealSet]="{ reset:true}" [ngsSelector]="'.item'">
        <div class="item item1">Item 1</div>
        <div class="item item2">Item 2</div>
        <div class="item item3">Item 3</div>
        <div class="item item4">Item 4</div>
        <div class="item5">Item 5 (will not be animated)</div>

Configuration options are the same as ScrollReveal JS configuration object.

Sequentially animated items:

Child items inside the parent set can be sequentially animated, by adding the [ngsRevealInterval] attribute.

Note: The interval is the time until the next element in the sequence begins its reveal, which is separate from the time until the element’s animation completes. In this example, the sequence interval is 50 milliseconds.

    <div class="itemset" [ngsRevealSet]="{ reset:true}" [ngsInterval]="50" [ngsSelector]="'.item'">
        <div class="item item1">Item 1</div>
        <div class="item item2">Item 2</div>
        <div class="item item3">Item 3</div>
        <div class="item item4">Item 4</div>
        <div class="item5">Item 5 (will not be animated)</div>

Global Configuration

You can inject the config service, typically in your root component, and customize the values of its properties in order to provide default values for all the ng-reveal directives used in the application.

import {Component} from '@angular/core';
import {NgsRevealConfig} from 'ng-scrollreveal';
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.scss'],
  providers: [NgbTabsetConfig] // add NgsRevealConfig to the component providers
export class AppComponent {
  constructor(config: NgsRevealConfig) {
    // customize default values of ng-scrollreveal directives used by this component tree
    config.duration = 5000;
    config.easing = 'cubic-bezier(0.645, 0.045, 0.355, 1)';
    //other options here


ng-scrollreveal is built upon ScrollReveal JS by Julian Lloyd. Thanks to him for the great work!

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