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页: 1 只有在空洞的情况下,才有价值。
原标题:jQuery set value only if empty

我正在利用一种模式,为一系列文箱田设定违约价值。 然而,如果不存在任何价值,我只想将实地设定为违约值。 是否有办法与一位资深的挑选者一道这样做?

http://www.ohchr.org。

var fooVal = $( #cboxLoadedContent ).find( #SetFoo ).val();
var barVal = $( #cboxLoadedContent ).find( #SetBar ).val();
$( .foo ).val(fooVal);
$( .bar ).val(barVal);
最佳回答
$(".foo[value=  ]").val(fooVal);

EDIT: As mentioned by Jonathan if youre using more than text inputs for this youre going to need to be a little more advanced... particularly with select tags, but also checkboxes, radios and textareas.

问题回答
$("input.foo[type=text][value=  ]").val(fooVal);
$("input.bar[type=text][value=  ]").val(barVal);

如果您的级别被用于其他类型的投入,那么守则就应当像守则那样,确保只有空文箱,而该箱的舱位受到该守则的影响。

您可使用<代码>:案文[价值=],以找到所有空文。





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