Question

我試圖通過jquery的 動態創建一個選擇框創建選擇框，但它不應該有電流值

jQuery('.copyad').each(function() { ads.push(jQuery(this).attr('id')); }); // ["ad1","ad2","ad3"] 
jQuery.each(ads , function(index, value) { 
     option += '<option value="'+value+'">Copy To Ad '+value+'</option>'; 
    }); 
jQuery('.copyad').html(option); 

它使輸出像

Ad1 === 
<select class="copyad" id="ad1" > 
<option value="ad1">Copy To ad1 </option> 
<option value="ad2">Copy To ad2 </option> 
<option value="ad3">Copy To ad3 </option> 
</select> 

Ad2 === 
<select class="copyad" id="ad2" > 
<option value="ad1">Copy To ad1 </option> 
<option value="ad2">Copy To ad2 </option> 
<option value="ad3">Copy To ad3 </option> 
</select> 
Ad3 === 
<select class="copyad" id="ad3" > 
<option value="ad1">Copy To ad1 </option> 
<option value="ad2">Copy To ad2 </option> 
<option value="ad3">Copy To ad3 </option> 
</select> 

但我需要一個像

Ad1 === 
<select class="copyad" id="ad1" > 
<option value="ad2">Copy To Ad 2 </option> 
<option value="ad3">Copy To Ad 3 </option> 
</select> 

Ad2 === 
<select class="copyad" id="ad2" > 
<option value="ad1">Copy To Ad 1 </option> 
<option value="ad3">Copy To Ad 3 </option> 
</select> 

Ad3 === 
<select class="copyad" id="ad3" > 
    <option value="ad1">Copy To Ad 1 </option> 
    <option value="ad2">Copy To Ad 2 </option> 
</select> 

所以在輸出...

我怎樣才能做到這一點

Answer 1

jQuery('.copyad').each(function() { ads.push(jQuery(this).attr('id')); }); 
jQuery.each(ads , function(index, value) { 
    if(ads[index] != value){ 
     option += '<option value="'+value+'">Copy To Ad '+ value[value.length -1] +'</option>'; 
    } 
}); 
jQuery('.copyad').html(option); 

嘗試添加如果條件這樣的..

Answer 2

如果我理解正確的，你只是想連接下面的id「廣告」部分的數量：

option += '<option value="'+value+'">Copy To Ad '+ value.substr(value.length - 1) +'</option>'; 

*編輯：基於下面的評論：

jQuery.each(ads , function(index, value) { 
    if(ads[index] != value) { 
     option += '<option value="'+value+'">Copy To Ad '+ value.substr(value.length - 1) +'</option>'; 
    } 
});