Add JS query shorthands

This commit is contained in:
Chalarangelo
2021-02-08 05:00:00 -04:00
parent 5e54cc76f8
commit b15f058bd5
3 changed files with 21 additions and 0 deletions

View File

@ -0,0 +1,20 @@
---
title: "Tip: Create your own query selector shorthand"
type: tip
tags: javascript,browser
authors: chalarangelo
cover: blog_images/pineapple-at-work.jpg
excerpt: Ever wanted to create your own jquery-like query selector shorthand? Here's how!
---
Most of us are familiar with jquery and probably quite a few of us are familiar with the Chrome console's `$` and `$$` shorthands for query selectors. I recently figured out a way to replicate these shorthands in my code, using `Document.querySelector()`, `Document.querySelectorAll()` and `Function.prototype.bind()`. Here's how to do it, just make sure you don't mix them up with jquery if you are still using it:
```js
const $ = document.querySelector.bind(document);
const $$ = document.querySelectorAll.bind(document);
const mainContent = $('.main-content');
const externalLinks = $('a[target="_blank"]');
```
**Image credit:** [engin akyurt](https://unsplash.com/@enginakyurt?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText) on [Unsplash](https://unsplash.com?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText)