cash

2018-06-13 admin

cash是什么

什么是cash,An absurdly small jQuery alternative for modern browsers.

cash介绍、cash使用

An absurdly small jQuery alternative for modern browsers (IE10+)

Cash is a small library for modern browsers (IE10+) that provides jQuery-style syntax for manipulating the DOM. Utilizing modern browser features to minimize the codebase, developers can use the familiar chainable methods at a fraction of the file size. 100% feature parity with jQuery isn’t a goal, but cash comes helpfully close, covering most day to day use cases.

Size Comparison

Cash jQuery 3.3.1
Uncompressed 28.7 KB 271 KB
Minified 11 KB 87 KB
Minified & Gzipped 4 KB 30.3 KB

An 87% gain in size reduction. If you need a smaller file, partial builds are supported too since this project is bundled using pacco.

Partial Builds

Some alternative configuration files for pacco for generating partial builds are available here.

Let’s compare the size of those partial builds (you could actually exclude individual methods and get even smaller builds):

Enabled Modules Minified Minified & Gzipped
QSA 1.1 KB 0.6 KB
attributes 2.8 KB 1.2 KB
events 3.5 KB 1.5 KB
collection + manipulation + traversal 5.3 KB 1.9 KB

Usage

Get cash from CloudFlare or jsDelivr and use it like this:

<script src="https://cdnjs.cloudflare.com/ajax/libs/cash/2.1.3/cash.min.js"></script>
<script>
  $(function () {
    $('html').addClass ( 'dom-loaded' );
    $('<footer>Appended with cash</footer>').appendTo ( document.body );
  });
</script>

Cash is also available through NPM as the cash-dom package:

npm install cash-dom --save-dev

Documentation

$()

This is the main selector method for cash. It returns an actionable collection of nodes.

If a function is provided, the function will be run once the DOM is ready.

$( selector, [context] ) // => collection
$(node) // => collection
$(nodeList) // => collection
$(htmlString) // => collection
$(collection) // => self
$(function () {}) // => document ready callback

Collection Methods

These methods from the collection prototype ($.fn) are available once you create a collection with $() and are called like so:

$(element).addClass ( className ) // => collection
Attributes Collection CSS Data Dimensions Events
fn.addClass () fn.add () fn.css () fn.data () fn.height () fn.off ()
fn.attr () fn.each () fn.removeData () fn.innerHeight () fn.on ()
fn.hasClass () fn.eq () fn.innerWidth () fn.one ()
fn.prop () fn.filter () fn.outerHeight () fn.ready ()
fn.removeAttr () fn.first () fn.outerWidth () fn.trigger ()
fn.removeClass () fn.get () fn.width ()
fn.removeProp () fn.index ()
fn.toggleClass () fn.last ()
fn.map ()
fn.slice ()
Forms Manipulation Offset Traversal
fn.serialize () fn.after () fn.offset () fn.children ()
fn.val () fn.append () fn.offsetParent () fn.closest ()
fn.appendTo () fn.position () fn.find ()
fn.before () fn.has ()
fn.clone () fn.is ()
fn.detach () fn.next ()
fn.empty () fn.not ()
fn.html () fn.parent ()
fn.insertAfter () fn.parents ()
fn.insertBefore () fn.prev ()
fn.prepend () fn.siblings ()
fn.prependTo ()
fn.remove ()
fn.replaceAll ()
fn.replaceWith ()
fn.text ()

$.fn

The main prototype for collections, allowing you to extend cash with plugins by adding methods to all collections.

$.fn // => cash.prototype
$.fn.myMethod = function () {}; // Custom method added to all collections
$.fn.extend ( object ); // Add multiple methods to the prototype

fn.add ()

Returns a new collection with the element(s) added to the end.

$(element).add ( element ) // => collection
$(element).add ( selector ) // => collection
$(element).add ( collection ) // => collection

fn.addClass ()

Adds the className class to each element in the collection.

Accepts space-separated className for adding multiple classes.

$(element).addClass ( className ) // => collection

fn.after ()

Inserts content or elements after the collection.

$(element).after ( element ) // => collection
$(element).after ( htmlString ) // => collection

fn.append ()

Appends the target element to each element in the collection.

$(element).append ( element ) // => collection

fn.appendTo ()

Adds the elements in the collection to the target element(s).

$(element).appendTo ( element ) // => collection

fn.attr ()

Without attrValue, returns the attribute value of the first element in the collection.

With attrValue, sets the attribute value of each element of the collection.

$(element).attr ( attrName ) // => AttributeValue
$(element).attr ( attrName, attrValue ) // => collection

fn.before ()

Inserts content or elements before the collection.

$(element).before ( element ) // => collection
$(element).before ( htmlString ) // => collection

fn.children ()

Without a selector specified, returns a collection of child elements.

With a selector, returns child elements that match the selector.

$(element).children () // => collection
$(element).children ( selector ) // => collection

fn.closest ()

Returns the closest matching selector up the DOM tree.

$(element).closest () // => collection
$(element).closest ( selector ) // => collection

fn.clone ()

Returns a clone of the collection.

$(element).clone () // => collection

fn.detach ()

Removes collection elements from the DOM.

$(element).detach () // => collection

fn.css ()

Returns a CSS property value when just property is supplied.

Sets a CSS property when property and value are supplied.

Sets multiple properties when an object is supplied.

Properties will be autoprefixed if needed for the user’s browser.

$(element).css ( property ) // => value
$(element).css ( property, value ) // => collection
$(element).css ( object ) // => collection

fn.data ()

Link some data (string, object, array, etc.) to an element when both key and value are supplied.

If only a key is supplied, returns the linked data and falls back to data attribute value if no data is already linked.

Multiple data can be set when an object is supplied.

$(element).data ( key ) // => value
$(element).data ( key, value ) // => collection
$(element).data ( object ) // => collection

fn.each ()

Iterates over a collection with callback ( index, element ).

$(element).each ( callback ) // => collection

fn.empty ()

Empties the elements interior markup.

$(element).empty () // => collection

fn.eq ()

Returns a collection with the element at index.

$(element).eq ( index ) // => collection

fn.extend ()

Adds properties to the cash collection prototype.

$.fn.extend(object) // => object

fn.filter ()

Returns the collection that results from applying the filter selector/method.

$(element).filter ( selector ) // => collection
$(element).filter ( function ( index, element ) {} ) // => collection

fn.find ()

Returns selector match descendants from the first element in the collection.

$(element).find ( selector ) // => collection

fn.first ()

Returns a collection containing only the first element.

$(element).first () // => collection

fn.get ()

Returns the element at the index, or returns all elements.

$(element).get ( index ) // => domNode
$(element).get () // => domNode[]

fn.has ()

Reduce the set of matched elements to those that have a descendant that matches the selector or DOM element.

$(element).has ( selector ) // => collection
$(element).has ( element ) // => collection

fn.hasClass ()

Returns the boolean result of checking if the first element in the collection has the className attribute.

$(element).hasClass ( className ) // => boolean

fn.height ()

Returns or sets the height of the element.

$(element).height () // => Integer
$(element).height ( number ) // => collection

fn.html ()

Returns the HTML text of the first element in the collection, sets the HTML if provided.

$(element).html () // => HTML Text
$(element).html ( htmlString ) // => HTML Text

fn.index ()

Returns the index of the element in its parent if an element or selector isn’t provided. Returns index within element or selector if it is.

$(element).index () // => Integer
$(element).index ( element ) // => Integer

fn.innerHeight ()

Returns the height of the element + padding.

$(element).innerHeight () // => Integer

fn.innerWidth ()

Returns the width of the element + padding.

$(element).innerWidth () // => Integer

fn.insertAfter ()

Inserts collection after specified element.

$(element).insertAfter ( element ) // => collection

fn.insertBefore ()

Inserts collection before specified element.

$(element).insertBefore ( element ) // => collection

fn.is ()

Returns whether the provided selector, element or collection matches any element in the collection.

$(element).is ( selector ) // => boolean

fn.last ()

Returns a collection containing only the last element.

$(element).last () // => collection

fn.map ()

Returns a new collection, mapping each element with callback ( index, element ).

$(selector).map ( callback ) // => collection

fn.next ()

Returns next sibling.

$(element).next () // => collection

fn.not ()

Filters collection by false match on collection/selector.

$(element).not ( selector ) // => collection
$(element).not ( collection ) // => collection

fn.off ()

Removes event listener from collection elements.

Accepts space-separated eventName for removing multiple events listeners.

Removes all event listeners if called without arguments.

$(element).off ( eventName, eventHandler ) // => collection
$(element).off ( eventName ) // => collection
$(element).off () // => collection

fn.offset ()

Get the coordinates of the first element in a collection relative to the document.

$(element).offset () // => Object

fn.offsetParent ()

Get the first element’s ancestor that’s positioned.

$(element).offsetParent () // => collection

fn.on ()

Adds event listener to collection elements.

Accepts space-separated eventName for listening to multiple events.

Event is delegated if delegate is supplied.

$(element).on ( eventName, eventHandler ) // => collection
$(element).on ( eventName, delegate, eventHandler ) // => collection

fn.one ()

Adds event listener to collection elements that only triggers once for each element.

Accepts space-separated eventName for listening to multiple events.

Event is delegated if delegate is supplied.

$(element).one ( eventName, eventHandler ) // => collection
$(element).one ( eventName, delegate, eventHandler ) // => collection

fn.outerHeight ()

Returns the outer height of the element. Includes margins if includeMargings is set to true.

$(element).outerHeight () // => Integer
$(element).outerHeight ( includeMargins ) // => Integer

fn.outerWidth ()

Returns the outer width of the element. Includes margins if includeMargings is set to true.

$(element).outerWidth () // => Integer
$(element).outerWidth ( includeMargins ) // => Integer

fn.parent ()

Returns parent element.

$(element).parent() // => collection

fn.parents ()

Returns collection of elements who are parents of element. Optionally filtering by selector.

$(element).parents () // => collection
$(element).parents ( selector ) // => collection

fn.position ()

Get the coordinates of the first element in a collection relative to its offsetParent.

$(element).position () // => object

fn.prepend ()

Prepends element to the each element in collection.

$(element).prepend ( element ) // => collection

fn.prependTo ()

Prepends elements in a collection to the target element(s).

$(element).prependTo ( element ) // => collection

fn.prev ()

Returns the previous adjacent element.

$(element).prev () // => collection

fn.prop ()

Returns a property value when just property is supplied.

Sets a property when property and value are supplied, and sets multiple properties when an object is supplied.

$(element).prop ( property ) // => property value
$(element).prop ( property, value ) // => collection
$(element).prop ( object ) // => collection

fn.ready ()

Calls callback method on DOMContentLoaded.

$(document).ready ( callback ) // => collection/span

fn.remove ()

Removes collection elements from the DOM and removes all their event listeners.

$(element).remove () // => collection

fn.replaceAll ()

This is similar to fn.replaceWith(), but with the source and target reversed.

$(element).replaceAll ( content ) // => collection

fn.replaceWith ()

Replace collection elements with the provided new content.

$(element).replaceWith ( content ) // => collection

fn.removeAttr ()

Removes attribute from collection elements.

$(element).removeAttr ( attrName ) // => collection

fn.removeClass ()

Removes className from collection elements.

Accepts space-separated className for adding multiple classes.

Providing no arguments will remove all classes.

$(element).removeClass () // => collection
$(element).removeClass ( className ) // => collection

fn.removeData ()

Removes linked data and data-attributes from collection elements.

$(element).removeData ( name ) // => collection
$(element).removeData () // => collection

fn.removeProp ()

Removes property from collection elements.

$(element).removeProp ( propName ) // => collection

fn.serialize ()

When called on a form, serializes and returns form data.

$(form).serialize () // => String

fn.siblings ()

Returns a collection of sibling elements.

$(element).siblings () // => collection

fn.slice ()

Returns a new collection with elements taken from start to end.

$(selector).slice ( start, end ) // => collection

fn.text ()

Returns the inner text of the first element in the collection, sets the text if textContent is provided.

$(element).text () // => text
$(element).text ( textContent ) // => collection

fn.toggleClass ()

Adds or removes className from collection elements based on if the element already has the class.

Accepts space-separated classNames for toggling multiple classes, and an optional force boolean to ensure classes are added (true) or removed (false).

$(element).toggleClass ( className ) // => collection
$(element).toggleClass ( className, force ) // => collection

fn.trigger ()

Triggers supplied event on elements in collection. Data can be passed along as the second parameter.

$(element).trigger ( eventName ) // => collection
$(element).trigger ( eventObj ) // => collection
$(element).trigger ( eventName, data ) // => collection
$(element).trigger ( eventObj, data ) // => collection

fn.val ()

Returns an inputs value. If value is supplied, sets all inputs in collection’s value to the value argument.

$(input).val () // => value
$(input).val ( value ) // => collection

fn.width ()

Returns or sets the width of the element.

$(element).width () // => number
$(element).width ( number ) // => collection

Cash Methods

These methods are exported from the global $ object, and are called like so:

$.isString ( str ) // => boolean
Type Checking Utilities
$.isArray () $.guid
$.isFunction () $.camelCase ()
$.isNumeric () $.each ()
$.isString () $.extend ()
$.matches ()
$.parseHTML ()
$.prefixedProp ()
$.unique ()

$.guid

A unique number.

$.camelCase ()

Transforms a string to camelCase.

$.camelCase ( 'border-width' ) // => 'borderWidth'

$.each ()

Iterates through an array and calls the callback ( value, index, array ) method on each.

$.each ( array, callback ) // => undefined

$.extend ()

Extends target object with properties from the source object. If no target is provided, cash itself will be extended.

$.extend ( target, source ) // => object

$.isArray ()

Check if the argument is an array.

$.isArray ([ 1, 2, 3 ]) // => true

$.isFunction ()

Check if the argument is a function.

function fn () {};
$.isFunction ( fn ) // => true

$.isNumeric ()

Check if the argument is numeric.

$.isNumeric ( 57 ) // => true

$.isString ()

Check if the argument is a string.

$.isString ( 'hello' ) // => true

$.matches ()

Checks a selector against an element, returning a boolean value for match.

$.matches ( element, selector ) // => boolean

$.parseHTML ()

Returns a collection from an HTML string.

$.parseHTML ( htmlString ) // => collection

$.prefixedProp ()

Return a prefixed CSS property, if necessary.

$.prefixedProp ( 'transform' ) // => 'mozTransform'

$.unique ()

Returns a new array with duplicates removed.

$.unique ( array ) // => array
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