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https://github.com/franciscop/superdom

:flags: Better and simpler ES6 DOM manipulation
https://github.com/franciscop/superdom

Last synced: 13 days ago
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:flags: Better and simpler ES6 DOM manipulation

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README 

        
# Superdom



You have `dom`. It has all the DOM virtually within it. Use that power:



```js

// Fetch all the page links

let links = dom.a.href;



// Links open in a new tab

dom.a.target = '_blank';

```



> Only for [modern browsers](http://caniuse.com/#feat=proxy)



### Getting started



Simply use the CDN via unpkg.com:



```html



```



Or use [npm](https://www.npmjs.com/package/superdom) or bower:



```

npm|bower install superdom --save

```



## Select



It always returns **an array with the matched elements**. Get all the elements that match the selector:



```js

// Simple element selector into an array

let allLinks = dom.a;



// Loop straight on the selection

dom.a.forEach(link => { ... });



// Combined selector

let importantLinks = dom['a.important'];

```



There are also some predetermined elements, such as `id`, `class` and `attr`:



```js

// Select HTML Elements by id:

let main = dom.id.main;



// by class:

let buttons = dom.class.button;



// or by attribute:

let targeted = dom.attr.target;

let targeted = dom.attr['target="_blank"'];

```



## Generate



Use it as a function or a tagged template literal to generate DOM fragments:



```js

// Not a typo; tagged template literals

let link = dom`Google`;



// It is the same as

let link = dom('Google');

```



## Delete elements



Delete a piece of the DOM



```js

// Delete all of the elements with the class .google

delete dom.class.google;   // Is this an ad-block rule?

```



## Attributes



You can easily manipulate attributes right from the `dom` node. There are some aliases that share the syntax of the attributes such as `html` and `text` (aliases for `innerHTML` and `textContent`). There are others that travel through the dom such as `parent` (alias for parentNode) and `children`. Finally, `class` behaves differently as explained below.



### Get attributes



The fetching will always **return an array** with the element for each of the matched nodes (or undefined if not there):



```js

// Retrieve all the urls from the page

let urls = dom.a.href;     // #attr-list

  // ['https://google.com', 'https://facebook.com/', ...]



// Get an array of the h2 contents (alias of innerHTML)

let h2s = dom.h2.html;     // #attr-alias

  // ['Level 2 header', 'Another level 2 header', ...]



// Get whether any of the attributes has the value "_blank"

let hasBlank = dom.class.cta.target._blank;    // #attr-value

  // true/false

```



You also use these:



- html (alias of `innerHTML`): retrieve a list of the htmls

- text (alias of `textContent`): retrieve a list of the htmls

- parent (alias of `parentNode`): travel up one level

- children: travel down one level



### Set attributes



```js

// Set target="_blank" to all links

dom.a.target = '_blank';     // #attr-set

```



```js

dom.class.tableofcontents.html = `

  


`;

```



### Remove an attribute



To delete an attribute use the `delete` keyword:



```js

// Remove all urls from the page

delete dom.a.href;



// Remove all ids

delete dom.a.id;

```



## Classes



It provides an easy way to manipulate the classes.



### Get classes



To retrieve whether a particular class is present or not:



```js

// Get an array with true/false for a single class

let isTest = dom.a.class.test;     // #class-one

```



For a general method to retrieve all classes you can do:



```js

// Get a list of the classes of each matched element

let arrays = dom.a.class;     // #class-arrays

  // [['important'], ['button', 'cta'], ...]



// If you want a plain list with all of the classes:

let flatten = dom.a.class._flat;     // #class-flat

  // ['important', 'button', 'cta', ...]



// And if you just want an string with space-separated classes:

let text = dom.a.class._text;     // #class-text

  // 'important button cta ...'

```



### Add a class



```js

// Add the class 'test' (different ways)

dom.a.class.test = true;    // #class-make-true

dom.a.class = 'test';       // #class-push

```



### Remove a class



```js

// Remove the class 'test'

dom.a.class.test = false;    // #class-make-false

```



## Manipulate



Did we say it returns a simple array?



```js

dom.a.forEach(link => link.innerHTML = 'I am a link');

```



But what an interesting array it is; indeed we are also proxy'ing it so you can manipulate its sub-elements straight from the selector:



```js

// Replace all of the link's html with 'I am a link'

dom.a.html = 'I am a link';

```



Of course we might want to manipulate them dynamically depending on the current value. Just pass it a function:



```js

// Append ' ^_^' to all of the links in the page

dom.a.html = html => html + ' ^_^';



// Same as this:

dom.a.forEach(link => link.innerHTML = link.innerHTML + ' ^_^');

```



> Note: this won't work `dom.a.html += ' ^_^';` for more than 1 match (for reasons)



Or get into genetics to manipulate the attributes:



```js

dom.a.attr.target = '_blank';



// Only to external sites:

let isOwnPage = el => /^https?\:\/\/mypage\.com/.test(el.getAttribute('href'));

dom.a.attr.target = (prev, i, element) => isOwnPage(element) ? '' : '_blank';

```



## Events



You can also handle and trigger events:



```js

// Handle click events for all 

dom.a.on.click = e => ...;



// Trigger click event for all 

dom.a.trigger.click;

```



## Testing



We are using Jest as a Grunt task for testing. Install Jest and run in the terminal:



```bash

grunt watch

```