我有一个html表，当用户上传CSV文件时，该表填充了产品列表。通常，该表将有超过一千行。问题是，当用户点击“提交”时，我必须在每行的一个输入中检查重复的条目。这需要花费很长时间，而且经常会收到无响应的脚本警告。
这是我用来检查重复项的脚本：
// Check for duplicate products
$('#match_table').submit(function(evt) {
var arr = document.getElementsByName("pid[]");
var sorted_arr = new Array();
for (var i = 0; i < arr.length; i++) {
sorted_arr[i] = new Array();
sorted_arr[i][0] = arr[i].value;
sorted_arr[i][1] = arr[i].id;
}
sorted_arr.sort((function(index){
return function(a, b){
return (a[index] === b[index] ? 0 : (a[index] < b[index] ? -1 : 1));
};
})(0));
var results = [];
for (var i = 0; i < sorted_arr.length - 1; i++) {
if (sorted_arr[i + 1][0] == sorted_arr[i][0]) {
results.push(sorted_arr[i][0]);
evt.preventDefault();
document.getElementById(sorted_arr[i][1]).style.border = "1px solid red";
document.getElementById(sorted_arr[i+1][1]).style.border = "1px solid red";
}
}
if(results.length != 0){
return false;
}
});
有关如何提高此脚本性能的任何想法/示例？或者如何解决这个问题？
编辑：HTML的片段
<form id="match_table" action="tool_tmaxupload.jsp" name="match_table" method="post">
<table class="nozebra">
<thead>
<tr>
<th class="essential"></th>
<th class="essential">CSV Product</th>
<th class="essential">CSV Desc</th>
<th class="essential">Match Product</th>
<th class="essential">Match Desc</th>
<th class="essential">Match Vend</th>
<th class="essential">Amount</th>
<th class="essential">To Rebate</th>
<th class="essential">To Growth</th>
<th class="essential">Paid On What</th>
</tr>
</thead>
<tbody>
<tr class=even>
<td><input type="checkbox" name="checkbox[]" class="checkall"></td>
<td>343601</td>
<td>TEST</td>
<td><input type="text" size="8" name="pid[]" id="pid_0" value="343601"/></td>
<td>COMBO LUNCH MEAT</td>
<td><input type="text" size="8" name="ve[]" value="672" /> FARMLAND FOODS INC</td>
<td><input type="text" size="5" name="ramt[]" value="5.5"/></td>
<td>
<select name="torebate[]" id="torebate">
<option value="0" >No</option>
<option value="1" selected=selected>Yes</option>
</select>
</td>
<td>
<select name="togrowth[]" id="togrowth">
<option value="0" selected=selected>No</option>
<option value="1" >Yes</option>
</select>
</td>
<td>
<select name="pow[]" id="pow">
<option value="1" selected=selected>% of FOB Cost</option>
<option value="2" >% of Delivered Cost</option>
<option value="3" >$ Per Case</option>
<option value="4" >$ Per Pound</option>
<option value="5" >% of Sold For Price</option>
</select>
</td>
</tr>
<tr class=odd>
<td><input type="checkbox" name="checkbox[]" class="checkall"></td>
<td>561720</td>
<td>TEST</td>
<td><input type="text" size="8" name="pid[]" id="pid_1" /></td>
<td></td>
<td><input type="text" size="8" name="ve[]" /></td>
<td><input type="text" size="5" name="ramt[]" value="6.5"/></td>
<td>
<select name="torebate[]" id="torebate">
<option value="0" selected=selected>No</option>
<option value="1" >Yes</option>
</select>
</td>
<td>
<select name="togrowth[]" id="togrowth">
<option value="0" >No</option>
<option value="1" selected=selected>Yes</option>
</select>
</td>
<td>
<select name="pow[]" id="pow">
<option value="1" >% of FOB Cost</option>
<option value="2" selected=selected>% of Delivered Cost</option>
<option value="3" >$ Per Case</option>
<option value="4" >$ Per Pound</option>
<option value="5" >% of Sold For Price</option>
</select>
</td>
</tr>
<tr class=even>
<td><input type="checkbox" name="checkbox[]" class="checkall"></td>
<td>193420</td>
<td>TEST</td>
<td><input type="text" size="8" name="pid[]" id="pid_2" value="346770"/></td>
<td>HAM SPIRAL SLIC disc use346778</td>
<td><input type="text" size="8" name="ve[]" value="672" /> FARMLAND FOODS INC</td>
<td><input type="text" size="5" name="ramt[]" value="7.5"/></td>
<td>
<select name="torebate[]" id="torebate">
<option value="0" >No</option>
<option value="1" selected=selected>Yes</option>
</select>
</td>
<td>
<select name="togrowth[]" id="togrowth">
<option value="0" selected=selected>No</option>
<option value="1" >Yes</option>
</select>
</td>
<td>
<select name="pow[]" id="pow">
<option value="1" >% of FOB Cost</option>
<option value="2" >% of Delivered Cost</option>
<option value="3" selected=selected>$ Per Case</option>
<option value="4" >$ Per Pound</option>
<option value="5" >% of Sold For Price</option>
</select>
</td>
</tr>
<tr class=even>
<td><input type="checkbox" name="checkbox[]" class="checkall"></td>
<td>193420</td>
<td>TEST</td>
<td><input type="text" size="8" name="pid[]" id="pid_3" value="346771"/></td>
<td>HAM SPIRAL SLICED BONE IN</td>
<td><input type="text" size="8" name="ve[]" value="672" /> FARMLAND FOODS INC</td>
<td><input type="text" size="5" name="ramt[]" value="7.5"/></td>
<td>
<select name="torebate[]" id="torebate">
<option value="0" >No</option>
<option value="1" selected=selected>Yes</option>
</select>
</td>
<td>
<select name="togrowth[]" id="togrowth">
<option value="0" selected=selected>No</option>
<option value="1" >Yes</option>
</select>
</td>
<td>
<select name="pow[]" id="pow">
<option value="1" >% of FOB Cost</option>
<option value="2" >% of Delivered Cost</option>
<option value="3" selected=selected>$ Per Case</option>
<option value="4" >$ Per Pound</option>
<option value="5" >% of Sold For Price</option>
</select>
</td>
</tr>
<tr class=odd>
<td><input type="checkbox" name="checkbox[]" class="checkall"></td>
<td>191239</td>
<td>TEST</td>
<td><input type="text" size="8" name="pid[]" id="pid_4" value="346778"/></td>
<td>HAM SPIRAL SLICED BONE IN</td>
<td><input type="text" size="8" name="ve[]" value="672" /> FARMLAND FOODS INC</td>
<td><input type="text" size="5" name="ramt[]" value="8.5"/></td>
<td>
<select name="torebate[]" id="torebate">
<option value="0" selected=selected>No</option>
<option value="1" >Yes</option>
</select>
</td>
<td>
<select name="togrowth[]" id="togrowth">
<option value="0" selected=selected>No</option>
<option value="1" >Yes</option>
</select>
</td>
<td>
<select name="pow[]" id="pow">
<option value="1" >% of FOB Cost</option>
<option value="2" >% of Delivered Cost</option>
<option value="3" >$ Per Case</option>
<option value="4" selected=selected>$ Per Pound</option>
<option value="5" >% of Sold For Price</option>
</select>
</td>
</tr>
<tr class=even>
<td><input type="checkbox" name="checkbox[]" class="checkall"></td>
<td>448584</td>
<td>TEST</td>
<td><input type="text" size="8" name="pid[]" id="pid_5" /></td>
<td></td>
<td><input type="text" size="8" name="ve[]" /></td>
<td><input type="text" size="5" name="ramt[]" value="9.5"/></td>
<td>
<select name="torebate[]" id="torebate">
<option value="0" >No</option>
<option value="1" selected=selected>Yes</option>
</select>
</td>
<td>
<select name="togrowth[]" id="togrowth">
<option value="0" >No</option>
<option value="1" selected=selected>Yes</option>
</select>
</td>
<td>
<select name="pow[]" id="pow">
<option value="1" selected=selected>% of FOB Cost</option>
<option value="2" >% of Delivered Cost</option>
<option value="3" >$ Per Case</option>
<option value="4" >$ Per Pound</option>
<option value="5" >% of Sold For Price</option>
</select>
</td>
</tr>
</tbody>
<tfoot>
<tr>
<th colspan="10"><input type="hidden" name="rbid" value="10034" /></th>
</tr>
</tfoot>
</table>
<input class="check" type="button" value="Check all" />
<input id="AddRow" type="button" value="Add">
<input id="DeleteRow" type="button" value="Delete">
<input type="submit" name="submit" value="Load" />
</form>