[小疑点，求写法，要效率，你懂的·]

[小问题，求写法，要效率，你懂的·~]

JScript code

var str ="SKU001,SKU001,SKU003,SKU002,......";最后显示：SKU001:2SKU002:1SKU003:1其中str内容是不定的。

JScript code

  var str = "SKU001,SKU001,SKU003,SKU002,SKU003,SKU003,SKU004,SKU004";    var arrs = str.split(',');    var object = {};    for (var i = 0; i < arrs.length; i++) {        var str = "if(object['" + arrs[i] + "'])object['" + arrs[i] + "']++; else object['" + arrs[i] + "'] =1; ";        eval(str);    }    for (var p in object) {        document.write(p + ":" + object[p]+"<br>");    }
[解决办法]
探讨


是滴，
统计重复的个数。。

[解决办法]
JScript code
    var str = "SKU001,SKU001,SKU003,SKU002";    var kv = {};    str.replace(/([^,]+)/gi, function ($1) { if (kv[$1]) kv[$1] += 1; else kv[$1] = 1; })    for (var k in kv) document.write(k + ':'+kv[k]+'<br/>');
[解决办法]
JScript code
<script type="text/jscript">var str ="SKU001,SKU001,SKU003,SKU002,......";var key = str.split(",");var result = "";for(var i =0,len=key.length;i<len;i++){    if(result.indexOf(key[i]) < 0){        result += key[i]+"出现次数"+(str.split(key[i]).length-1)+"\n";    }}alert(result);</script>
[解决办法]
探讨


JScript code

<script type="text/jscript">
var str ="SKU001,SKU001,SKU003,SKU002,......";
var key = str.split(",");
var result = "";
for(var i =0,len=key.length;i<len;i++){
    if(result.indexOf(key……