Question

这些js代码什么意思？哪位好心人，有标问号的给解释下吧

function validationInfo(form) {
var $form = $(form), ？？？？
result = $form.data(data_validation); ？？？？

if (!result) {
result = {
options: { // options structure passed to jQuery Validate's validate() method
errorClass: "input-validation-error",
errorElement: "span",
errorPlacement: $.proxy(onError, form), ////这个是有对表单操作 错误时候执行的么？？ 那么页面加载的时候呢？？？
invalidHandler: $.proxy(onErrors, form),
messages: {},
rules: {},
success: $.proxy(onSuccess, form)
},
attachValidation: function () {
$form.validate(this.options);
},
validate: function () { // a validation function that is called by unobtrusive Ajax
$form.validate();
return $form.valid();
}
};
$form.data(data_validation, result);
}
哪位好心人解释下啊？这个是js验证里面的写的

Answer 1

var $form = $(form), 将html元素转换为jquery对象，为了使用jquery的方法
result = $form.data(data_validation); 获取该表单的验证结果
errorPlacement 错误信息显示的位置，
errorPlacement: function (error, element) {
error.appendTo($("div")); 将错误信息添加到div元素中
}

Answer 2

实在是很难懂啊