Importing in ES6/Typescript: combine imports with names onto a single line

Is it possible to condense this code into a single line?

import * as Express  from 'express'; import { Application, NextFunction, Request, Response } from 'express'; 

Signed, Dan the Dev

Answer №1

import statement along with export statement has specific syntax rules that allow for static analysis:

According to details provided in the official documentation:

import defaultMember from "module-name";

import * as name from "module-name";

import { member } from "module-name";

import { member as alias } from "module-name";

import { member1 , member2 } from "module-name";

import { member1 , member2 as alias2 , [...] } from "module-name";

import defaultMember, { member [ , [...] ] } from "module-name";

import defaultMember, * as name from "module-name";

import "module-name";

It is notable that the format

import * as name, { member } from "module-name"
is not included, indicating that it is not a supported structure.

The rationale behind this lack of support stems from the fact that

import * as name, { member } from "module-name"
and importing members individually are interchangeable. It's essentially choosing between importing members one by one or as part of the name namespace.

If there is a need to use both approaches, then it should be done as follows:

import * as Express from 'express';
import { Application, NextFunction, Request, Response } from 'express';

Alternatively, if exports represent actual variables rather than types/interfaces, the following approach can also be taken:

import * as Express from 'express';
const { Application, NextFunction, Request, Response } = Express;

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