147 lines
2.5 KiB
JavaScript
Executable File
147 lines
2.5 KiB
JavaScript
Executable File
/**
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Kis JS Keep It Simple JS Library
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Copyright Timothy J. Warren
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License Public Domain
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Version 0.8.0
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*/
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(function (undefined){
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"use strict";
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var $_, $, sel;
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/**
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* $_
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*
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* Constructor function
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*
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* @constuctor
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* @namespace
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* @param string selector
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* @return object
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*/
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$_ = function(s)
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{
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// Have documentElement be default selector, just in case
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if (s === undefined)
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{
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// Defines a "global" selector for that instance
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sel = ($_.el !== undefined)
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? $_.el
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: document.documentElement;
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}
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else
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{
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sel = $(s);
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}
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// Add the selector to the prototype
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$_.prototype.el = sel;
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// Use the $_ object as it's own prototype
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var self = Object.create($_);
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// Give sel to each extension.
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for(var i in self)
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{
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if(typeof self[i] === "object")
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{
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self[i].el = sel;
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}
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}
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self.el = sel;
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return self;
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};
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/**
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* Simple DOM selector function
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*
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* @memberOf $_
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* @param string selector
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* @param object context
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* @return object
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* @type object
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*/
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$ = function (a, context)
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{
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var x, c;
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if (typeof a != "string" || a === undefined){ return a;}
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//Check for a context of a specific element, otherwise, just run on the document
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c = (context != null && context.nodeType === 1)
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? context
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: document;
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//Pick the quickest method for each kind of selector
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if (a.match(/^#([\w\-]+$)/))
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{
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return document.getElementById(a.split('#')[1]);
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}
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else
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{
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x = c.querySelectorAll(a);
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}
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//Return the single object if applicable
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return (x.length === 1) ? x[0] : x;
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};
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/**
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* Adds the property `obj` to the $_ object, calling it `name`
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*
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* @param string name
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* @param object obj
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*/
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$_.ext = function(name, obj)
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{
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obj.el = sel;
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$_[name] = obj;
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};
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/**
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* Iterates over a $_ object, applying a callback to each item
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*
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* @name $_.each
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* @function
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* @param function callback
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*/
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$_.ext('each', function (callback)
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{
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if(sel.length !== undefined && sel !== window)
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{
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[].forEach.call(sel, callback);
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}
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else
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{
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callback.call(sel, sel);
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}
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});
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/**
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* Retrieves the type of the passed variable
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*
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* @param mixed obj
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* @return string
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* @type string
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*/
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$_.type = function(obj)
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{
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if((function() {return obj && (obj !== this)}).call(obj))
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{
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//fallback on 'typeof' for truthy primitive values
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return (typeof obj).toLowerCase();
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}
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//Strip x from [object x] and return
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return ({}).toString.call(obj).match(/\s([a-z|A-Z]+)/)[1].toLowerCase();
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};
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//Set global variables
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$_ = window.$_ = window.$_ || $_;
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$_.$ = $;
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}());
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