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javascript高级的文件目录排序代码

　　本文标签：文件目录,排序

<!doctype HTML> 
<html> 
<head> 
<meta charset="gb2312" /> 
<title>高级目录,文件名排序</title> 
<meta name="description" content="Javascript高级目录,文件名排序实现"/> 
<meta name="Keywords" content="Javascript高级目录,文件名排序实现,win7排序,sort"/> 
<style> 
#page{} 
</style> 
</head> 
<body> 
<div id="page" > 
<h4>高级目录,文件名排序</h4> 
<div>主要实现了目录中的数字按大小排序</div> 
排序结果：<br> 
</div> 
</body> 
<script> 
//accepts a string; returns the string with regex metacharacters escaped. the returned string 
// can safely be used at any point within a regex to match the provided literal string. escaped 
// characters are [, ], {, }, (, ), -, *, +, ?, ., \, ^, $, |, #, <comma>, and whitespace 
RegExp.escape = function (str) { 
return str.replace(/[-[\]{}()*+?.\\^$|,#\s]/g, "\\$&"); 
}; 
var fileSort=function(arr,getVal){ 
var res=[],temp=[],i=0,j=0,k,reg,item,cur; 
getVal=getVal || function(a){return a}; 
arr.sort(function(a,b){ 
return getVal(a).localeCompare(getVal(b)); 
}); 
for(;i0){ 
temp.sort(function(a,b){ 
return parseInt(getVal(a).substr(k),10)-parseInt(getVal(b).substr(k),10); 
}); 
res=res.concat(temp); 
temp=[];j=0; 
if(i!==arr.length-1){ 
i-=1;//减1，再执行查找使while结束的str 
} 
} 
} 
} 
return res; 
} 
var arr=[ 
"//", 
",", 
"\"3", 
"...", 
"8", 
"2", 
"15", 
"\"21", 
",", 
"...", 
"1.jpg", 
"9.jpg", 
"234", 
"99", 
"13.jpg", 
"8.jpg", 
"idkinbec", 
"idkinbed3", 
"idkinbef", 
"idkinbegh", 
"idkin44.txt", 
"idkinb1.txt", 
"idkinbd.txt", 
"idkinbe.txt", 
"idkinbe3.txt", 
"idkin(be12.txt",//正则特殊字符 
"idkinbe5.txt", 
"idkinbe34.txt", 
"idkinbe25.txt", 
"idkinb.txt", 
"idkin23.txt", 
"idkin1.txt", 
"idkin5.txt", 
"idk" 
];

var res=fileSort(arr); 
for(var i=0;i<res.length;i++){ 
document.write(res[i]+"<br>"); 
} 
document.write("文件数为:"+arr.length+"/"+res.length);

arr=[ 
{name:bb,size:12}, 
{name:a,size:5}, 
{name:2,size:9}, 
{name:12,size:3} 
] 
res=fileSort(arr,function(item){ 
return item.size; 
}); 
for(i=0;i<res.length;i++){ 
document.write("<br>name:"+res[i].name+",size:"+res[i].size); 
} 
document.write("<br>文件数为:"+arr.length+"/"+res.length); 
</script> 
</html>

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