Question

var func = function()
{
    $(this).hide();
    $parent = $(this).parent();
    $parent.removeClass( my_signature_mouseover );
    var text = $(this).val();
    var $span = $("#status span");
    $span.text(text);
    $span.show();
};
$("#status input").keyup(function (e) {
    var keyCode = e.keyCode || e.which;
    if (keyCode == 13) {
       func();
    }
}).blur(func);

I want to make func run if blur or pressing "Enter" on it. But the above code works only when blur, in the case of pressing "Enter",it reports "Permission denied to access parentNode".

虽然我知道与<条码>这一条有关的一些内容,但在不同的背景下,这几条关键词是: 我不知道如何确定。

Answer 1

您称之为func,并附有一项正常功能要求,即func内的原因,this各变量将指全球物体(window)。

您必须履行以下职能::<>/code>/a>,以维护环境(,>,> /code Value),这是引发该事件的要素:



$("#status input").keyup(function (e) {
    var keyCode = e.keyCode || e.which;
    if (keyCode == 13) {
       e.preventDefault(); // stop event propagation
       func.call(this);
    }
}).blur(func);

Answer 2

为此:

var func = function(elem)
{
    elem.hide();
    var $parent = elem.parent();
    $parent.removeClass( my_signature_mouseover );
    var text = elem.val();
    var $span = $("#status span");
    $span.text(text);
    $span.show();
};
$("#status input").keyup(function (e) {
    var keyCode = e.keyCode || e.which;
    if (keyCode == 13) {
       func($(this));
    }
}).blur(function () {
    func($(this));
});

友情链接