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Jquery - Limit text in text submissions, not textarea
原标题:Jquery - Limit text in text input, not textarea

我如何限制在案文领域可以分类的特性数目? 不提及案文领域,只是一个正常的文本投入领域。 我有一种形式,通过使用IOS5 的iPad来看待,出于某种原因,我忽视了最大程度的属性。 如果我使用“最高”=10,我可以在这方面永远照样,那么它就在10个方面赢得了停职。 因此,我认为,我需要打断,以限制实地工作。 任何建议?

<>Update>

采用从最大程度和马克·布的建议,这是我提出的守则:

$( #textfld , #textform ).keyup(function() {

    if($(this).val().length > 20) {

        var text = $(this).val().substring(0,20);
        $(this).val(text);

    }

});
最佳回答

如果该领域已经存在10个,你需要约束实地的关键活动,并阻止其进入特性:。 http://jsfiddle.net/j6tJ3/

    $( input ).keydown(function(e){
        if($(this).val().length > 9 && e.which !== 8 && e.which !== 46){ //if it s too long and the key pressed isn t backspace or delete
            return false;
        }
    });
问题回答

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