jquery清空表单数据示例分享

function clearForm(form) {
  // iterate over all of the inputs for the form
  // element that was passed in
  $(:input, form).each(function() {
    var type = this.type;
    var tag = this.tagName.toLowerCase(); // normalize case
    // its ok to reset the value attr of text inputs,
    // password inputs, and textareas
    if (type == text || type == password || tag == textarea)
      this.value = "";
    // checkboxes and radios need to have their checked state cleared
    // but should *not* have their value changed
    else if (type == checkbox || type == radio)
      this.checked = false;
    // select elements need to have their selectedIndex property set to -1
    // (this works for both single and multiple select elements)
    else if (tag == select)
      this.selectedIndex = -1;
  });
};