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用 jQuery 玩弄你的網頁 (2)
kewang
Agenda
● JavaScript Library● $() function● Event Handling● Effects
3
JavaScript Library
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讓工作更快速!
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跨瀏覽器更簡單!
6
寫的少做的多!
JavaScript Library
● jQuery● Prototype● YUI
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什麼是 jQuery ?
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什麼是 jQuery ?
● 開放原始碼的 JavaScript Library● 支援大部分的瀏覽器 ( 包括 IE)● 檔案很小 (15KB)● 擴充容易● 各大網站愛用 ( 包括 MS)● 無縫連結其他 Library
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什麼是 jQuery ?
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$() function
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$() function
● jQuery wrapper (based on CSS Selector)● 公用函式● document.ready● 建立 DOM 元素● 擴展 jQuery
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用傳統方式存取 DOM 元素
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用 jQuery 存取 DOM 元素
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jQuery Core
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size() / length
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each(fn)
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get()
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Attributes
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attr(name)
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attr(key, value)
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attr(properties)
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attr(key, fn)
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addClass(class)
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hasClass(class)
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removeClass(class)
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toggleClass(class)
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Set/Get html
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Set/Get text
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Set/Get value
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empty()
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CSS
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css(name)
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css(name, value)
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css(properties)
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Set/Get Height & Width
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Events - ready()
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ready()
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ready()
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Events
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click()/click(fn)
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hover(over, out)
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toggle(fn, fn2[, fn3, ...])
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bind(type[, data], fn) / trigger(event)
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Effects
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hide() / hide(speed[, callback])
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Effects - Basic
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Effects - Sliding
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Effects - Fading
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Ajax
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Ajax - 傳統寫法
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Ajax - jQuery 寫法
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GET vs POST
● GET– 用來取得 server 端的
資料。– 如:資料庫的 read
● POST– 用來變更 server 端的
狀態。– 如:資料庫的 create,
update, delete
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get(url[, data][, callback][, type])
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post(url[, data][, callback][, type])
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getJSON(url[, data][, callback][, type])
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UI
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UI
● Draggable● Droppable● Resizable● Selectable● Sortable
● Accordion● Datepicker● Dialog● Progressbar● Slider● Tabs
● Blind
● Bounce
● Clip
● Drop
● Explode
● Fold
● Highlight
● Pulsate
● Scale
● Shake
● Slide
● Transfer
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Accordion
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Datepicker
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Dialog
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Progressbar
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Slider
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Tabs
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10 tips
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Be lazy
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Use shortcut
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Chain
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Group queries
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Select siblings like a pro
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Use each and map
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Use namespaces
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triggerHandler is great
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Custom events
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Test
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兩天的魔鬼訓練總算結束啦!!!