Can anyone explain why I am receiving this error in TypeScript 3.9.2:
'new' expression, whose target lacks a construct signature, implicitly has an 'any' type.
The code triggering the error is shown below:
const Module = function(){
function sayHello(){
console.log('Hello');
}
return {
sayHello: sayHello
}
};
let module: any = new Module();
I highly suggest transitioning to ES6 classes for better code organization and readability. However, if you prefer using functions, the following solution will suffice:
interface Module {
sayHello: () => void;
}
const Module = function(){
function sayHello(){
console.log('Hello');
}
return {
sayHello: sayHello
}
} as any as { new (): Module; };
let module = new Module();
If you opt for using classes instead, you can simply implement it like this:
class Module {
sayHello() {
return console.log('Hello');
}
};
let module = new Module();
module.sayHello();
new is typically used for creating instances of classes. However, the revealing module pattern involves a function that simply returns an object.
When implementing your module using this pattern, you should invoke it like a regular function rather than treating it as a class constructor.
let myModule = Module();
myModule.sayHello() // outputs 'Hello'
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