Post on 05-Dec-2014
description
Y the YUI?Christian Heilmann,
GeekUp Leeds, February 2008
Why any library?
Because not everybody likes pain.
Browsers have shifty eyes and will steal your lunch money!
Memory leaks,creative standards support and syntax
oddities make your life less fun
So why the YUI?
First of all, please stop the fanboy fights.
All good libraries want to do the same thing:make your life easier.
YUI has one big benefit though:
It is Dr.Martensfor the web:
Industrial strength for your solutions.
Safety and Maintainability.
Namespacing included.
Let’s guess what the following things are...
YAHOO.util.DomYAHOO.util.Event
YAHOO.widget.ColorPicker
Roll your own:
YAHOO.namespace(‘GeekUp’);YAHOO.GeekUp.getRoundIn = function(){...}
Mess around with JavaScript:
YAHOO.lang. ...
OO-goodness for JS,Testing for types:
isArray, isBoolean, isFunction, isNull, isNumberisObject, isString, isUndefined, isValue
React to User Agents: YAHOO.env.uaif(YAHOO.env.ua.ie === 5){ alert(“you hate developers,right?”);}
OMG! It is so HUGE!
Hosting by YAHOO (CDN, gzipped, minified)
Include on-demand, either with YAHOO loader, get or
YAHOO_config.
Take control with Custom Events.
You do know what happens when and how and you can react to it.
Yes, you can use CSS selectors!
(as a query and as a filter)
You have full API documentation, examples and
cheatsheets - even offline!
(Elephants, Tigers and Bears are extra.)
Oh, and the YUI is *not* a JavaScript library!
It is a framework of JS, CSS, Design Patterns
and Widgets.
Developed and tested for use in Yahoo! properties, and handed over to you
for free!(BSD license FTW)
Tips for quick YUI development:
Get an IDE that supports it (Aptana, Eclipse, TextMate Bundle)
Make your own shortcuts and nest them in a
module pattern.
YAHOO.namespace('geekup');YAHOO.geekup.doStuff = function(){ function handler(){ if(YAHOO.util.Dom.hasClass(this, 'hl')){ YAHOO.util.Dom.removeClass(this, 'hl'); } else { YAHOO.util.Dom.addClass(this, 'hl'); } } var nav = YAHOO.util.Dom.get('nav'); var lis = YAHOO.util.Selector.query('#nav li') for(var i=0;lis[i];i++){ YAHOO.util.Event.addListener(lis[i], 'click', handler); }}();
YAHOO.namespace('geekup');YAHOO.geekup.doStuff = function(){ var YD = YAHOO.util.Dom, var YE = YAHOO.util.Event; var $ = YAHOO.util.Selector.query; function handler(){ if(YD.hasClass(this, 'hl')){ YD.removeClass(this, 'hl'); } else { YD.addClass(this, 'hl'); } } var lis = $('#nav li') for(var i=0;lis[i];i++){ YE.on(lis[i], 'click', handler); }}();
YAHOO.namespace('geekup');YAHOO.geekup.doStuff = function(){ var YD = YAHOO.util.Dom, var YE = YAHOO.util.Event; var $ = YAHOO.util.Selector.query; function handler(){ if(YD.hasClass(this, 'hl')){ YD.removeClass(this, 'hl'); } else { YD.addClass(this, 'hl'); } } var lis = $('#nav li') for(var i=0;lis[i];i++){ YE.on(lis[i], 'click', handler); }}();
YAHOO.namespace('geekup');YAHOO.geekup.doStuff = function(){ var YD = YAHOO.util.Dom; var YE = YAHOO.util.Event; var $ = YAHOO.util.Selector.query; YE.on($('#nav li'),'click',function(){ if(YD.hasClass(this, 'hl')){ YD.removeClass(this, 'hl'); } else { YD.addClass(this, 'hl'); } });}();
YAHOO.namespace('geekup');YAHOO.geekup.doStuff = function(){ var YD = YAHOO.util.Dom; var YE = YAHOO.util.Event; var $ = YAHOO.util.Selector.query; YE.on($('#nav li'),'click',function(){ if(YD.hasClass(this, 'hl')){ YD.removeClass(this, 'hl'); } else { YD.addClass(this, 'hl'); } });}();
YAHOO.namespace('geekup');YAHOO.geekup.doStuff = function(){ var YD = YAHOO.util.Dom; var YE = YAHOO.util.Event; YE.on(YD.get('nav'),'click',function(e){ var t = YE.getTarget(e); if(t.nodeName.toLowerCase()==='li'){ if(YD.hasClass(t, 'hl')){ YD.removeClass(t, 'hl'); } else { YD.addClass(t, 'hl'); } } });}();
Thanks, now tell me what you’d like to know.