jQuery Practical exercise Part - I : Exercise-15Using jQuery remove all the options of a select box and then add one option and select it.Sample solution :HTML Code :<!DOCTYPE html> <html> <head> <script src="https://code.jquery.com/jquery-git.js"></script> <meta charset="utf-8"...
prepend("<option value='0'>请选择</option>"); //删除Select中索引值最大Option(最后一个) jQuery("#select_id option:last").remove(); //删除Select中索引值为0的Option(第一个) jQuery("#select_id option[index='0']").remove(); //删除Select中Value='3'的Option jQuery("#select_id ...
3、从select选项中 删除一个Item function jsRemoveItemFromSelect(objSelect, objItemValue) { //判断是否存在 if (jsSelectIsExitItem(objSelect, objItemValue)) { for (var i = 0; i < objSelect.options.length; i++) { if (objSelect.options[i].value == objItemValue) { objSelect.options....
// objSelect.options[objSelect.options.length] = varItem; objSelect.options.add(varItem, objItemPos); alert( "成功加入" ); } } //3.从select选项中 删除一个Item functionjsRemoveItemFromSelect(objSelect,objItemValue) { //判断是否存在 if(jsSelectIsExitItem(objSelect,objItemValue)) { for(...
if(sel.options[i].selected){ sel.options.remove(i); break; } } 三、清空select的所有option var citySel=document.getElementById("select的id"); citySel.options.length=0; 四、获得选中项的值 var citySel=document.getElementById("select的id"); ...
remove all the options of a select box and then add one option and select it 代码语言:javascript 代码运行次数:0 运行 AI代码解释 $('#mySelect') .find('option') .remove() .end() .append('<option value="whatever">text</option>') .val('whatever') ; 注意原因不明多个 remove()不能一...
21 select.val(selectedOption); Lines 1 to 7 define the new options with an associative array and the one which will be selected. This is what might have been retrieved from an AJAX call. Lines 9 to 15 cache a handle to #example and its options. Note that from jQuery 1.6 you can'...
$.extend($.fn.datagrid.defaults.editors, { text: { init: function(container, options){ var input = $('<input type="text" class="datagrid-editable-input">').appendTo(container); return input; }, destroy: function(target){ $(target).remove(); }, getValue: function(target){ return $...
Selects all elements that are descendants of a given ancestor.Manipulation > DOM Removal .detach() Remove the set of matched elements from the DOM.Deprecated > Deprecated 1.7 | Events > Event Handler Attachment | Removed .die() Remove event handlers previously attached using .live() from the...
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