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[Snippets] - Added event listener related snippets #226

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11 changes: 11 additions & 0 deletions snippets/javascript/event-handling/add-an-event-listener.md
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---
title: Add an event listener
description: Add an event listener to an element
author: JanluOfficial
tags: event-handling
---

```js
const myElement = document.getElementById("myElement");
myElement.addEventListener("click", function(){ myFunction("Param1", 2) });
```
11 changes: 11 additions & 0 deletions snippets/javascript/event-handling/remove-an-event-listener.md
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---
title: Remove an event listener
description: Remove an event listener from an element
author: JanluOfficial
tags: event-handling
---

```js
const myElement = document.getElementById("myElement");
myElement.removeEventListener("click", function(){ myFunction("Param1", 2) });
```
25 changes: 25 additions & 0 deletions snippets/javascript/event-handling/trigger-a-custom-event.md
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---
title: Trigger a custom event
description: Triggers a custom event on an element
author: JanluOfficial
tags: event-handling,custom-event
---

```js
function handleCustomEvent(event) {
console.log('Custom event triggered:', event.detail);
}

const targetElement = document.getElementById('targetElement');
targetElement.addEventListener('myCustomEvent', handleCustomEvent);

const customEvent = new CustomEvent('myCustomEvent', {
detail: {
message: 'This is a custom event',
time: new Date(),
},
});

// Usage:
targetElement.dispatchEvent(customEvent);
```
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