jQuery append () and remove() element ... $('a.add_project_file').click(function() { $(".project_images").append('<input name=" ... ... <看更多>

Append /Add and Remove HTML Elements: jQuery ... http://technotip.com/2021/append-add-... Video ... ... <看更多>

If i'm understanding your question correctly what you have is pretty much there already. The only change I can suggest is to let your HTML ... ... <看更多>

I want to remove one option and append another option in the same index. Consider that: <select id="selectBox" name="selectBox" > <option value="option1"> ... ... <看更多>

Removing all children from an element var element = document. ... 的性能会优于$().html(value),性能测试之jquery html vs empty append; ... <看更多>