https://github.com/keupoz/strict-queryselector

A simple typeguard wrapper around document.querySelector for TypeScript
https://github.com/keupoz/strict-queryselector

Last synced: about 1 month ago
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A simple typeguard wrapper around document.querySelector for TypeScript

• Host: GitHub
• URL: https://github.com/keupoz/strict-queryselector
• Owner: keupoz
• License: mit
• Created: 2020-06-29T05:39:04.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2020-07-10T15:44:40.000Z (over 4 years ago)
• Last Synced: 2024-09-21T07:28:53.395Z (about 2 months ago)
• Language: TypeScript
• Size: 15.6 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# strict-queryselector

## Usage

```typescript

import { querySelector } from "@keupoz/strict-queryselector";

// Same examples applies to querySelectorAll

// Gets body element with type of HTMLBodyElement

const body = querySelector("body", HTMLBodyElement);

// Throws TypeError as body element is not instance of HTMLDivElement

const bodyDiv = querySelector("body", HTMLDivElement);

// Throws Error if element doesn't exist

// If it exists, checks if it's instance of specified type

const meaningOfLife = querySelector(".life-meaning", HTMLDivElement);

```

### Wrappers

There are wrapper functions that allows to wrap the type guard around custom element. And they return the same function as regular `querySelector`.

```typescript

const bodyQuerySelector = wrapQuerySelector(document.body);

```