Javascript Type / Class Name

getTypeName.js

function getTypeName(value) {
  if (value === null) {
    return "null";
  }
  var t = typeof value;
  switch (t) {
    case "function":
    case "object":
      if (value.constructor && value.constructor.name) {
        return value.constructor.name;
      } else if (value.constructor) {
        return value.constructor.toString().match(/\s([a-zA-Z]+)/)[1];
      } else {
        return Object.prototype.toString.call(value);
      }
    default:
      return t;
  }
};