javascript - 如何使用javascript清除文本框(How to clear a textbox using javascript)

Question

I have a(我有一个)

<input type="text" value="A new value">

I need a javascript method to clear the value of the textbox when the focus is on the textbox.(当焦点在文本框上时，我需要一个javascript方法来清除文本框的值。)

How can this be achieved?(怎么能实现这一目标？)

  ask by kalls translate from so

Answer 1

just get element using(只是使用元素)

   function name()
   {  
   document.getElementById('elementid').value = "";
   }

you can call this function on onfocus event of textbox and clear the value(您可以在文本框的onfocus事件上调用此函数并清除该值)