我正在制作一个表单，只有在输入值为数字时才希望代码执行。我试图避免使用某种验证插件，并且想知道是否有方法循环输入字段并检查值。
我一直在尝试以下，但我认为我的逻辑是错误的：
(#monthlyincome是表单id)
$("#submit").click(function() {
$("#monthlyincome input").each(function() {
if (!isNaN(this.value)) {
// process stuff here
}
});
});
有任何想法吗？
这是整个更新的代码：
$("#submit").click(function() {
$("#monthlyincome input[type=text]").each(function() {
if (!isNaN(this.value)) {
// processing data
var age = parseInt($("#age").val());
var startingage = parseInt($("#startingage").val());
if (startingage - age > 0) {
$("#field1").val(startingage - age);
$("#field3").val($("#field1").val());
var inflationyrs = parseInt($("#field3").val());
var inflationprc = $("#field4").val() / 100;
var inflationfactor = Math.pow(1 + inflationprc,inflationyrs);
$("#field5").val(inflationfactor.toFixed(2));
var estyearlyinc = $("#field6").val();
var inflatedyearlyinc = inflationfactor * estyearlyinc;
$("#field7").val(FormatNumberBy3(inflatedyearlyinc.toFixed(0),","."));
var estincyears = $("#field2").val();
var esttotalinc = estincyears * inflatedyearlyinc;
$("#field8").val(FormatNumberBy3(esttotalinc.toFixed(0),"."));
var investmentrate = $("#field9").val() / 100;
var investmentfactor = Math.pow(1 + investmentrate,inflationyrs);
$("#field10").val(investmentfactor.toFixed(2));
var currentsavings = $("#field11").val();
var futuresavings = currentsavings * investmentfactor;
$("#field12").val(FormatNumberBy3(futuresavings.toFixed(0),"."));
//final calculations
var futurevalue = (1 * (Math.pow(1 + investmentrate,inflationyrs) - 1) / investmentrate);
var finalvalue = (1 / futurevalue * (esttotalinc - futuresavings));
$("#field13").val(FormatNumberBy3(finalvalue.toFixed(0),"."));
}
// end processing
}
});
});
FormatNumberBy3是用于…格式化数字的函数。 原文链接：https://www.f2er.com/jquery/182898.html
