如何在点击按钮后实时判断输入框中输入了什么!=提交?

当用户单击submit按钮以外的任何其他位置时,请尝试onBlur事件验证并设置输入错误。

缺少的只是元素后面的这个小片段 .get(0).value. 谢谢大家抽出时间!

$(document).ready(function(){
    $("#button").click(function(){
        if(selectedSlots.length < 2 ||
        $("#field1").length < 1 ||
        $("#field2").length < 1){
            var origMsg = $(this).get(0).parentNode.innerHTML;
            var errorMsg = "<p style=\"text-align:center;padding:0;margin:0;\">Please ";
                if(selectedSlots.length < 1)errorMsg += "select at least one availability slot";
                if($("#field1").get(0).value.length < 1){errorMsg += "enter the position you wish to apply for"};
                if($("#field2").get(0).value.length < 1){errorMsg += "enter the amount of hours you would like to work"};
                errorMsg += " before continuing.</p>";

            $(this).get(0).parentNode.innerHTML = origMsg + errorMsg;

            return;

        }
        $("#currentDiv").slideUp();
        $("#nextDiv").slideDown();

    });
});