It's not saying require is not a function, it's saying require(...) is not a function. :-) You're trying to call the result of require(. ... <看更多>

In the Person class, the constructor() is where you can initialize the properties of an instance. JavaScript automatically calls the constructor() method ... ... <看更多>

ES6 Classes formalize the common JavaScript pattern of simulating class-like ... keyword class Polygon { // ..and an (optional) custom class constructor. ... <看更多>

Typically by first invoking its base class constructor using the new operator, ... JavaScript has always allowed a constructor to over-ride its autmatically ... ... <看更多>

The second search constructor (for var geosearch) is showing an error that it is not part of function. Is it possible to use a class constructor again in JS ... ... <看更多>