What is the significance of a TypeScript import that starts with a # symbol?

While reviewing some TypeScript code, I came across the following import:

import { URLS } from '#constants';

This seems to be a different way of writing:

import { URLS } from './constants';

I'm curious about the significance of the # symbol in this context, especially when used at the beginning of the import statement. Can you shed some light on this for me?

Answer №1

For more information, refer to the official TypeScript documentation:

https://www.typescriptlang.org/docs/handbook/modules/reference.html#packagejson-imports-and-self-name-imports

  • TypeScript has the ability to resolve import paths that start with # by looking in the "imports" section of the closest ancestor package.json file.
  • The tsconfig file should be configured with modern moduleResolution options such as node16, nodenext, or bundler, and include resolvePackageJsonImports.

This allows you to use #absolutePath anywhere within your project (even in nested folders) and it will always resolve to the absolute path of the file within the project. This feature can eliminate the need for using aliases to specify prefixed paths for absolute imports within projects.

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

Sharing a Promise between Two Service Calls within Angular

Currently, I am making a service call to the backend to save an object and expecting a number to be returned via a promise. Here is how the call looks: saveTcTemplate(item: ITermsConditionsTemplate): ng.IPromise<number> { item.modifiedDa ...

How to use RxJs BehaviorSubject in an Angular Interceptor to receive incoming data

Being a newcomer to rxjs, I grasp most operators except for the specific use case involving BehaviorSubject, filter, and take. I am working on renewing an oauth access and refresh token pair within an Angular interceptor. While reviewing various codes fro ...

Make sure that the input for a function is a valid key within a specific interface, and that the corresponding value in the interface is

I'm a beginner in TypeScript and I've hit a roadblock with this issue. Despite searching extensively, I haven't found a solution yet. My goal is to create a well-typed sorting function that takes two parameters: an array of objects and the ...

What is the best way to globally incorporate tether or any other feature in my Meteor 1.3 TypeScript project?

I've been working hard to get my ng2-prototype up and running in a meteor1.3 environment. Previously, I was using webpack to build the prototype and utilized a provide plugin to make jQuery and Tether available during module building: plugins: [ ne ...

iOS 10.3.1 causing Ionic 2 (click) event to trigger twice

I am currently working on an Ionic 2 app and I am facing an issue with the click event. When I test the app on a device and click on a button, let's say to trigger an alert, the function executes once. However, if I click on the button again, the fun ...

The logic behind combining elements from two arrays in JavaScript/TypeScript

Explanation of two different array formats const arr1 = [ { "elementName": "one" }, { "elementName": "two" } ] const arr2 = [ { "type": "RPT_PROPERTY_DEMOGRP", "values": [ { "label": "HH" }, { " ...

Incorrectly asserting the data type of a union

I am having trouble getting the type assertion to work in this specific scenario. Here is a Playground Link type Letter = "A" | "B" type Useless = {} type Container<T> = Useless | { type: "container" ...

Revamp Your Service Naming and Nickname with Swagger Codegen IO

Is it possible to customize the Swagger IO CodeGen naming conventions for generating Angular API Service Proxies? Check out Swagger Editor here The current convention combines API, Controller Name, Controller Method, and HTTP Action. public apiProductGet ...

Nuxt3 - TS2339: The 'replaceAll' property is not found on the 'string | string[]' type in Nuxt3

Hey there! I've been experimenting with the replaceAll() method within my Nuxt3 project and encountered a strange error. Folder Structure ───pages │ └───Work │ │ index.vue │ │ [Work].vue Template <templat ...

Extract "Actual Components" (variables and functions) from a Rest API using Angular HttpClient

Recently, I encountered a similar issue to the one discussed in this post. Since the original question was posted in 2017, I was curious if there have been any advancements or simpler methods developed since then. One idea that came to mind was using an ...

index signature in TypeScript is an optional feature

Is it possible to create a type with optional namespaces in TypeScript? export interface NodesState { attr1: number; attr2: number; attr3: number; } The goal is to allow users to namespace the type like this: { namespace1: { attr1: 100, ...

Utilize ngrx and rxjs to transform an Observable from createSelector (TS2740: Type 'MemoizedSelector error)

My usual method of fetching data from the ngrx store used to be: public getUser(): Observable<IUser> { return this.store.select(store => store.users.selectedUser); } However, I am now attempting to transition to using createSelecor (ngrx 15) an ...

angular2 ngFor is not functioning properly

I'm having an issue where I cannot get textboxes to appear whenever a user clicks a button. I am attempting to achieve this using ngFor, but for some reason, the ngFor is not iterating as expected. Even after trying to change the array reference with ...

I am encountering challenges with React.js implemented in Typescript

Currently, I'm grappling with a challenge while establishing a design system in ReactJS utilizing TypeScript. The issue at hand pertains to correctly passing and returning types for my components. To address this, here are the steps I've taken so ...

How can the panel within an accordion be enlarged or minimized?

Currently, I am implementing an accordion feature with the option to expand or collapse all panels using two buttons. My goal is to allow users to manage each panel within the accordion individually. However, I have encountered an issue that needs attenti ...

Creating a custom Object Type based on the values of an array of objects using Typescript

I have been attempting to create a generic type (Response) that consolidates all values from KeysForResponse, specifically the values from the valueIWant property for each object in MyObject[]. I am struggling to find a solution and wondering if it is even ...

Switch up row values in an array and transform them into an object using SheetJS

I am struggling to format an array where each "Working Day" is represented as an object with specific details like index and start/end date. I need help manipulating the JSON data to achieve the desired structure. The package I'm currently using is: ...

Undefined value is returned for Vue 3 object property

Is there a way to extract additional attributes from the Keycloak object ? Currently, If I try, console.log(keycloak) it will display the entire keycloak object. Even after reloading, it remains in the console. However, when I do, console.log(keycloak.t ...

Encountering Thumbnail Type Error While Implementing Swiper in Next.js

When trying to integrate Swiper with Next.js, I ran into an issue concerning thumbnails. "onSwiper={setThumbsSwiper}" This line is causing a TypeScript error: swiper-react.d.ts(23, 3): The expected type comes from property 'onSwiper' w ...

Why does the error message "DeprecationWarning: 'originalKeywordKind' deprecated" keep popping up while I'm trying to compile my project?

Upon completing the compilation of my project, I encountered the error message provided below. What does this signify and what steps can I take to resolve it? - info Linting and checking validity of types DeprecationWarning: 'originalKeywordKind' ...