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我如何区分 Java本的变量类型?
原标题:How do I differentiate between variable types in JavaScript?
  • 时间:2012-01-14 16:00:02
  •  标签:
  • javascript

在贾瓦伦,我想写一个功能,确定两种变数是否相同,如扼杀、ger化、 b等。 然而,我不知道如何比较其DATA TYPES的两种变数,而不是在变量内储存的VALUES。

事先感谢你=

最佳回答
问题回答

您可以按照建议使用 类型,但并非完美;阵列和日期均被视为“目标”。

另一种不完善的方法是:

function sameTypes() {
  var tp = null, ts = Object.prototype.toString;
  if (arguments.length === 0) return true; // or false if you prefer
  tp = ts.call(arguments[0]);
  for (var i = 1; i < arguments.length; ++i)
    if (tp !== ts.call(arguments[i])) return false;
  return true;
}

如果把目标原型上的“滚动”功能称作“滚动”功能,则你可以传递两个或两个以上(一个或一个以上)的数值,如果所有这些数值都相同的话,则可以发送<代码>true。 这不是完美的,因为它助长了对物体的排泄,因此,扼杀型常态似乎与强硬主义一样。

(a) 使用类型

var test = true,
    test2 = "string";

if (typeof(test) === typeof(test2)) {}




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