Is it feasible to bring in a Typescript file into an active ts-node REPL session?

Question

Is it feasible to bring in a Typescript file into an active ts-node REPL session?

I want to experiment with some Typescript code that I have written.

Currently, I usually run ts-node my-file-name.ts to test it out.

But I am interested in making this process more interactive, similar to the Python REPL where you can import modules and call functions however you please.

For instance, a session could go like this:

$ ts-node
> import my-file-name.ts
> myFunctionFromMyFile("specialParam")
> "you just called a function from my-file-name.ts with param specialParam"

Is it feasible to achieve this with ts-node?

typescript import module read-eval-print-loop ts-node

Answer 1

Answer №1

To achieve this, one method I discovered is outlined below:

$ ts-node
> import * as xyz from './my-doc'
> xyz.myMethod()
> "successful!"

Answer 2

To achieve this, one method I discovered is outlined below:

$ ts-node
> import * as xyz from './my-doc'
> xyz.myMethod()
> "successful!"

Answer 3

Answer №2

In order to have automatic imports in every REPL session, one option is to expose your application in a file and then utilize the repl.start function within that file. To do this, you can create a file called console.ts with the following code:

import repl from 'repl';
import * as models from './models';

Object.keys(models).forEach((modelName) => {
  global[modelName] = models[modelName];
});

const replServer = repl.start({
  prompt: 'app > ',
});

replServer.context.db = models;

To launch the console, you can use the command:

$ node --require ts-node/register/transpile-only --experimental-repl-await console

For more detailed information, please visit this link

Answer 4

In order to have automatic imports in every REPL session, one option is to expose your application in a file and then utilize the repl.start function within that file. To do this, you can create a file called console.ts with the following code:

import repl from 'repl';
import * as models from './models';

Object.keys(models).forEach((modelName) => {
  global[modelName] = models[modelName];
});

const replServer = repl.start({
  prompt: 'app > ',
});

replServer.context.db = models;

To launch the console, you can use the command:

$ node --require ts-node/register/transpile-only --experimental-repl-await console

For more detailed information, please visit this link

Is it feasible to bring in a Typescript file into an active ts-node REPL session?

Answer №1

Answer №2

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