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arguments(数组) 可变参/不定参arguments.lengthfunction sum(){ var results = 0; for(var i = 0;i < arguments.length;i++) results += arguments[i]; return results;}alert(sum(1,2,3,4,5));-----------------------------------------jqcss(oDiv,'width') 获取样式css(oDiv,'width','200px') 设置样式------------------------------------------alert(currentStyle.width) 获取非行间样式//只兼容IEalert(getComputedStyle(oDiv,null).width) 火狐if(oDiv.currentStyle){ alert(currentStyle.width);}else{ alert(getComputedStyle(oDiv,null).width);}----------------------------------------------------获取非行间样式//不能获取复合样式(background、border)function getStyle(obj,name){ if(obj.currentStyle){ return obj.currentStyle[name]; } else{ return getComputedStyle(obj,null)[name]; }}window.onload = function(){ var oDiv = document.getElementById('div1'); alert(getStyle(oDiv,'width'));}-----------------------------------------------------数组a = {1,2,3};a = new array(1,2,3);尾部添加 a.push(4);尾部删除 a.pop();头部添加 a.unshift(5);头部删除 a.shift();删除:a.splice(起点,长度);插入:a.splice(起点,长度,元素...);替换:a.splice(2,2,'a','b');连接:var a = {1,2,3};var b = {4,5,6};alert(a.contact(b))lalert(a.join('-')); ----->1-2-3排序字符排序var a = {'float','width','alpha','zoom','left'};a.sort();alert(a);数字排序var a = {12,8,99,19,112};a.sort(function(n1,n2)){ return n1 - n2;}alert(a);-----------------------------------------------------
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