Is there a way to utilize the intellisense feature of TypeScript for predefined colors in my component's prop, while still allowing users to input their own hex color codes?
type PREDEFINED_COLORS = 'success' | 'error' | 'info';
type Props = {
color: PREDEFINED_COLORS | string;
}
Although I am aware that PREDEFINED_COLORS is a type of string, I am looking for suggestions on how to make the most of intellisense in this scenario.
Any ideas or suggestions would be greatly appreciated!
To ensure the safest approach, consider utilizing a templated string type. Here is an example to guide you:
type PREDEFINED_COLORS = 'success' | 'error' | 'info';
type Props = {
color: PREDEFINED_COLORS | `#${string}`;
}
If you wish to further refine the type, you can create a hexDigit and construct the entire type from there. Here is a potential implementation:
type hexDigit = '0' | '1' | '2' | '3' | '4' | '5' | '6' | '7' | '8' | '9' | 'a' | 'b' | 'c' | 'd' | 'e' | 'f'
type hexColor = `#${hexDigit}${hexDigit}${hexDigit}${hexDigit}${hexDigit}${hexDigit}`
It is important to note that TypeScript will generate a comprehensive list of combinations for the hexDigit type, resulting in a significantly large type. Specifically, it will contain 2^32 items, surpassing the 100k limit set by the platform. More information on this can be found here.
Is there a way to filter keyof T based on the type of T[keyof T]? This is how it should function: type KeyOfType<T, U> = ... KeyOfType<{a: 1, b: '', c: 0, d: () => 1}, number> === 'a' | 'c' KeyOfType<{a: ...
In this scenario, we have two main components - the Drawer and the AppBar. The AppBar contains a menu button that is supposed to trigger an event opening the Drawer. However, implementing this functionality has proven challenging. I attempted to use the li ...
In my Type Script code, I am looking to store the return value of a function in a local variable. The process is outlined below: getdetail1(store){ let Cust_id=this.sharedata.latus_lead.m_type let url="http:domain.com" console.lo ...
When running tests in my Typescript nodejs project, I use the following command: mocha --compilers ts:ts-node/register,tsx:ts-node/register The tests run successfully with this command. However, when I try to run them using npm test, I encounter the foll ...
I'm currently working on a project using Angular. One of my methods involves dynamically creating a component, but I'm encountering difficulties when trying to use directives like ngClass and ngIf from the CommonModule within this component. Her ...
Currently, I am in the process of developing a boilerplate NestJS application. My goal is to integrate @nestjs/swagger into the project. However, I have encountered an import error while trying to include the module. npm install --save @nestjs/<a href=" ...
Working on an Angular project, I am attempting to remove an object from an array. To achieve this, I need to filter the array and then update the storage (specifically, capacitor/storage) with the modified array. Here is my function: deleteArticle(id: str ...
I'm exploring methods to delay an HTTP request until the user stops interacting. I am considering using the debounceTime() operator from RxJs, but I need this to be triggered by changes in an array that I have defined. Here is the scenario: export c ...
type RequestHandler< Request extends **typeof IncomingMessage = typeof IncomingMessage**, Response extends **typeof ServerResponse = typeof ServerResponse**, > = (req: InstanceType<Request>, res: InstanceType<Response> ...
While working with jest and typescript, I encountered an issue when using "before" calls: Cannot find name 'before'.ts(2304) I made sure to have @types/jest installed already. Update: It appears that jest does not have a "before" function - it ...
My goal is to incorporate the property endpoint from my environment.ts file into my service: export const environment = { production: false, endpoint: 'http://localhost:3000/api/cabin/' }; This snippet showcases my service: import {Injectabl ...
Check out this Spring Boot endpoint that I use for retrieving items from the database: import React, { useEffect, useState } from "react"; // Additional imports export default function BusinessCustomersTable() { // Functionality and code impl ...
When simulating a graphql query with a mock service worker (MSW), we need to verify that the variables passed to the query contain specific values. This involves more than just type validation using typescript typings. In our setup, we utilize jest along ...
I am struggling to output the values of each object in the choices array using console log. Despite being able to display the objects in the choices array, all the values appear empty. Every object is showing as timeZonePicker: "", startTimeInput: "", endT ...
A server response to an Axios request contains the content of a PDF as a binary string. export const fetchPDFfile = async (id: string): Promise<string> => { const { data } = await http.get<string>(`${baseUrl}/${id}.pdf`); return data; } ...
Screenshot of the issue: Access the complete project here: Link to a Plunker example of a log-in screen: http://plnkr.co/edit/j69yu9cSIQRL2GJZFCd1?p=preview (The username and password for this example are both set as "test") Snippet with the error in ...
Struggling with integrating a modal into my project - it's refusing to close and taking up the entire screen height. On inspection, I found this troublesome code: [tabindex]: outline: none; height: 100% How can I remove height: 100% from the ...
I am currently utilizing the Table Component of Ant Design v2.x and unfortunately, I cannot conduct an upgrade. My concern lies with the inconsistent formatting of numbers in row-edit mode. In Display mode, I have German formatting (which is desired), but ...
I've encountered a perplexing issue in my Angular app where an array is logged before adding an element to it, yet the log shows the updated array with the added element. This array is then utilized in an HTML file with ngFor. component.ts file inter ...
The Challenge Setting up a TypeScript project with Jest has been proving difficult for me. It seems that TypeScript is not recognizing the Jest types from @types/jest, resulting in an error message like this: Cannot find name 'test'. Do you nee ...