Every TypeScript 2.1 file will have their own async/await ES5 __awaiter and __generator generated

Exploring the latest rc-release of TypeScript in order to utilize the async/await functionality for ES5.

Encountering an odd behavior with the generated __awaiter and __generator methods, as it appears they are being created for each individual ts file when the outFile compiler option is not utilized.

Is there a method to generate just one instance of the __awaiter and __generator methods without relying on outFile? I am hesitant to use the outFile flag because I currently depend on webpack for bundling, which is necessary for importing HTML template files.

typescriptwebpackasync-awaittypescript2.1

Answer №1

To implement the new --importHelpers compile flag, follow this link for documentation and support: Docs

Answer №2

  • To enhance your project in tsconfig.json, within the "compilerOptions" section, include: 

    `"importHelpers": true`

  • Integrate the typescript helper library by installing it as a dependency: 

    npm install tslib --save

Typescript will automatically import the necessary helpers when required, and Webpack will efficiently bundle tslib once. If you are releasing a library, you can configure webpack to recognize tslib as an external using the externals option.

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

Replay subscription in Angular 2 using RxJS 5, triggering the schedule based on the previous result

Within my Angular 2 application written in typescript 2, a server query is made to retrieve a value that requires regular updates based on an expiration date provided by the server. I am facing difficulties in creating an Observable stream that will autom ...

angulartypescriptrxjsobservable

What causes the div to appear empty upon creation in the TypeScript file?

Using Typescript tab1: { headings: ['Col 1', 'Col 2', 'Col 3', 'Col 4'], content: [ { col1: 'name of row object', col2: `<div style="width: 550px; height: 40px; b ...

javascripthtmlangulartypescript

create an endless loop to animate in angular2

Is there a way to add iterations, or something similar to the ccs3 animation-iteration-count in Angular 2 animations? I've looked but can't find anything related. How can we apply an infinite play to the animation? Where should we include that o ...

angulartypescript

Error message seen when css-loader fails in webpack: "An appropriate loader is required to process this file type."

Currently, I am in the process of developing a React application that utilizes TypeScript and Webpack 4. My objective is to import a CSS file from react-select, but unfortunately, I'm encountering a generic error message: ERROR in ./node_modules/reac ...

reactjstypescriptwebpackcss-loader

TypeScript does not accept an Iterator within a for...of loop

In my browser, the code works fine even without the typings. However, TypeScript is emitting an error stating that gen() does not have a [Symbol.iterator] method, which is required for it to be considered an Iterable. I find this limitation odd because as ...

typescriptiteratorgenerator

Why am I only able to view private class properties in ngModel?

When utilizing a class with private properties in a model along with getter/setter methods, I am finding that I can only access the private property and not the public one using the getter/setter. https://stackblitz.com/edit/angular-hx3t7g Why is '_ ...

angulartypescriptsetterngmodel

Every time I make updates, I have to reload the page to see the changes take effect

Currently, I am in the process of developing a web application that utilizes Firebase Firestore as the backend and NoSQL database, with Angular serving as the frontend. With frequent updates and changes being made to the website, it becomes cumbersome to c ...

angulartypescriptfirebasegoogle-cloud-firestoreprogressive-web-apps

Executing MongoDB collection operations with array filtering

I am looking to count records based on tags and filter them before including in specific groups // data in database {tags: ['video', 'Alex'], ... }, {tags: ['video', 'John'], ... }, {tags: ['video', 'J ...

javascriptnode.jsmongodbtypescript

Creating a unique rxjs store using a custom selector function

Incorporating a function as my selector, it allows me to choose between selecting either a specific section of my personalized store or the entire entity. select<K>(mapFn: (state: T) => K): Observable<K> { return this.internalState$.as ...

angulartypescriptrxjs

Error in Typescript for a function that accepts several types of lists - property does not exist on the interface

In my project, I have defined three interfaces: a base interface and two others that extend the base one with children as properties. One of the interfaces includes 'valueType' while the other includes 'returnType'. Here is how they are ...

javascripttypescripttypescript-typings

Guide: Implementing material-ui theme with redux in gatsby

I'm currently utilizing the material-ui theme in conjunction with redux-toolkit within a gatsby project. This is my theme.ts file: import { createMuiTheme } from "@material-ui/core"; import { useSelector } from "react-redux"; import { State } from ". ...

javascriptreactjstypescriptreduxmaterial-ui

Convert an array into a JSON object for an API by serializing it

Currently, I am working with Angular 12 within my TS file and have encountered an array response from a file upload that looks like this- [ { "id": "7", "name": "xyz", "job": "doctor" ...

javascriptarraysjsonangulartypescript

Familial Connection (TYPESCRIPT)

Is there a way to set the state in ISetOpen based on the type of modal in ISetOpen? For example: If ISetOpen.modal is 'payModal': Set ISetOpen.state to IPayModal If ISetOpen.modal is 'deleteModal': Set ISetOpen.state to IDeleteModal ...

reactjstypescripttypesreact-redux

Utilize the JSZip library to compress files in Angular 11

I need to compress multiple txt files into a zip archive that are received in base64 format from a service response. Here is the code snippet to download the zip file containing the compressed txt files stored under the "txt" folder: let zip = new JSZip() ...

angulartypescriptjszipfilesaver.js

Invoke a TypeScript function from the HTML code embedded within a TypeScript component

In my pop-up window, there are 2 buttons: Update and Delete. I need to implement functionality so that when the Update button is clicked, the current pop-up should disappear and a new editable pop-up with the same fields should appear, along with two addit ...

javascripthtmlangulartypescriptleaflet

Troubleshooting a Pulumi script in Azure using Typescript and encountering difficulties with function writing

My background is in using terraform, but now I am trying out Pulumi/typescript for the first time. In my codebase, I have two files - index.ts and blob.ts. The create function in blob.ts is responsible for creating a storage account, resource group, blob ...

typescriptazurepulumi

Combine values from 2 distinct arrays nested within an array of objects and present them as a unified array

In my current array, the structure looks like this: const books[{ name: 'book1', id: '1', fromStatus: [{ name: 'Available', id: 1 }, { name: 'Free', id: 2 }], t ...

typescript

If you're not utilizing v-model.lazy, Vue3 Cleave js may encounter functionality issues

I am currently experimenting with cleavejs to format the thousand separator in my input numbers. I've noticed a strange behavior where if I input 1000.123, it displays as 1,000.12 which is the correct format. However, the v-model value remains as 1000 ...

javascripttypescriptvuejs3cleave

Using PostGraphile's NodeId identifiers for composite PrimaryKeys

We integrated a Postgraphile mutation plugin using the method makeExtendSchemaPlugin. Within our plugin, we utilize the NodeId and parse it using the method getTypeAndIdentifiersFromNodeId. This function returns the GraphQL Type and a collection of Identi ...

typescriptpostgresqlpostgraphile

react-mock-store: Error - the middleware function is not defined

In my current setup, I am utilizing jest for testing with React and Typescript. import configureStore from "redux-mock-store"; import thunk from "redux-thunk"; const mockStore = configureStore([thunk]); it("should handle fetchCha ...

reactjstypescriptreact-reduxjestjs