I didn't find a way to export a class instance easily in TypeScript. I had to come up with the following workaround to generate proper javascript code.
var expo = new Logger("default");
export = expo;
generates
var expo = new Logger("default");
module.exports = expo;
Is there an easier way of achieving this?
Quite by accident, I found this way to export an instance:
class MyClass(){}
export default new MyClass();
I had to come up with the following workaround to generate proper javascript code
Not a workaround. This is the standard way in TS to do a root level export.
Is there an easier way of achieving this
Yes. export = new Variable. Example:
export = new Foo();
For ES modules you should instead use a default export:
export default expo = new Logger("default");
Which will in most cases have the same effect as a root level export.
Yes / No answer. I don't see it answered in any of the other answers on the page.On https://k94n.com/es6-modules-single-instance-pattern is an additional way of doing this:
export let expo = new Logger("default");
Which has the advatage that it is possible to export several class instances in a *.ts file.
One approach is to create a static instance inside a class:
export class MyClass {
static instanceOfMyClass = new MyClass();
}
..
var instanceOfMyClass = MyClass.instanceOfMyClass;
export new Logger("default");. Hm... still don't find it very clear. Anyway, thanks.