JSLite - size position

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offset

Get the position of the current element relative to the document. Returns an object containing: left|top|width|height

$("#box").offset()  //⇒Object {left: 8, top: 8, width: 1260, height: 0}
$("#box").offset().left  //⇒  8

width

width() ⇒ number
width(value) ⇒ self
width (function(index, oldWidth){ ... }) ⇒ self
Get the width of the first element in the object collection, or set the width of all elements in the object collection.

$("#box").width()   // => 342
$(window).width()   // => 456 (可视区域宽度)
$(document).width() // => dsf

height

##height() ⇒ number

height(value) ⇒ self
height(function(index, oldWidth){ ... } ) ⇒ self
Get the height of the first element in the object collection, or set the height of all elements in the object collection.

$("#box").height()   // => 342
$(window).height()   // => 456 (可视区域高度)
$(document).height() // => dsf

scrollLeft

scrollLeft() ⇒ self Get the position of the current horizontal scroll bar of the first element in the matched element set

$("body").scrollLeft(400);

scrollTop

scrollTop() ⇒ self Get the current vertical scroll bar position of the first element in the matched element set

$("body").scrollTop(400);