ngx-element-in-view

> 🔍 Angular directive to detect when an element enters the viewport using `IntersectionObserver`. Add animation classes or trigger callbacks with ease.

0.0.6

latest

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Version published: 2 weeks ago

Weekly downloads: 30

Maintainers: 1

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Created: 3 weeks ago

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ngx-in-view

🔍 Angular directive to detect when an element enters the viewport using IntersectionObserver. Add animation classes or trigger callbacks with ease.

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✨ Features

🔁 Automatically detect when an element comes into view
🎨 Add CSS animation classes
🔔 Trigger callbacks via (inView) event
⚙️ Configurable threshold and trigger behavior
🧩 Works great with lazy-loading and animation libraries like Animate.css or GSAP

📦 Installation

npm install ngx-in-view

## 🧰 Parameters

| Parameter         | Type                    | Default  | Description                                                                 |
|-------------------|-------------------------|----------|-----------------------------------------------------------------------------|
| `ngxElementInView`       | `string`                | `''`     | (Optional) Space-separated CSS classes to apply when element is in view     |
| `threshold`       | `number`                | `0.1`    | (Optional) Visibility ratio (0 to 1) required to trigger the directive       |
| `triggerOnce`     | `boolean`               | `true`   | (Optional) If true, the directive triggers only once                        |
| `visibilityBeforeInView`     | `boolean`               | `true`   | (Optional) If false, the element will display only once in view                       |
| `(inView)`        | `EventEmitter<void>`    | —        | Emits when the element becomes visible in the viewport                      |


## Example

<div
  [ngxElementInView]="'fade-in bounce'"
  [threshold]="0.3"
  [triggerOnce]="true"
>
  This will animate when it appears in the viewport!
</div>

Keywords

angular

directive

intersection-observer

lazy-load

scroll-animation

in-view

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Package last updated on 14 Jul 2025

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