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Recent questions tagged typescript
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Update Object values Javascipt / typescript
Hello, how can I updated nested child value in Object -> example Variable is 2 & Item VariableGroup is 2 so new value will be 999 instead of 160. It should also work for ... ) { console.log(v); break; } } } } }; helperFx(2,2,999);...
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typescript - Angular - Module Separation - Best Practice for shared or common code
I have some Angular services that have identical methods for parsing the json response, handling errors etc (eg. trapping if it's a 422 error for example) ... helperA(){} export function helperB(){} } See Question&Answers more detail:os...
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typescript - Build errors after Upgrading from Angular 8 to 9
I have an Angular application that is hosted in a .net core 3.1 application. I upgraded from 8 to 9 following the official guide and now my application won't build. I get ... .0.0", "ts-node": "8.6.2" } } See Question&Answers more detail:os...
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typescript - Angular 6 project not loading in IE11
My angular 6 project loads in chrome but it does not load in IE11. I used the following question: Angular 2 / 4 / 5 not working in IE11 to try and ... I may be missing since this is an Angular 6 project? See Question&Answers more detail:os...
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typescript - firebase function get download url after successfully save image to firebase cloud storage
I'm having problem getting download url in firebase function after saving image to cloud storage. Below is my firebase http function in typescript ... ; export const testsomething = simpletest.helloWorld; See Question&Answers more detail:os...
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typescript inference without enumerating all possibilities
I would like to know if there is a solution for the following problem : I have two functions that accept different input parameters, I have an object ... all possibilities in a switch or if/else ? See Question&Answers more detail:os...
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typescript - How to resolve generic type of property value from decorated property in decorator
I'm playing with some code, which resolve generic type of property value and doesn't allow provide wrong value. But when I change from TValue to ... in example with function as in example without function See Question&Answers more detail:os...
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typescript - Redefined parameter loses its inferred type when in another block
As example, I'll use a function that receive a argument and returns a function that always returns a number. I'll have two possible results: if I ... Why does the type of a redefined parameter get lost? See Question&Answers more detail:os...
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typescript - TS2339 - 'Property doesn't exist on type' error in an apparently valid TS file
I have the following type declarations: type Root = { r: string }; type A = { a: string }; type B = { b: string }; type Main = Root & (A | B ... to Main, right? Is it a bug, or am I missing something? See Question&Answers more detail:os...
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typescript - Angular: error TS2322: Type 'ItemsResponse' is not assignable to type 'string[]'
I am getting this error with my component not sure what to do? here is the component: import { Component, OnInit } from '@angular/core'; import { HttpClient ... results; console.log(this.results); }); } } See Question&Answers more detail:os...
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typescript - Dynamic type using a string variable as a property name
I would like to be able to construct a type dynamically ... See Question&Answers more detail:os...
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typescript - Unable to use ng-include in angular 5
Pretty new to Angular and doing a small pilot project using Angular 5 and Visual Code. I am trying to use ng-include and the template doesn't get ... do not even see device.html file in source list. See Question&Answers more detail:os...
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typescript - Angular 2: functions/methods on click inside dynamic template (dynamic component)
Following the example below: How can I use/create dynamic template to compile dynamic Component with Angular 2.0? I developed my own template generator ... : self.context.printSomething is not a function See Question&Answers more detail:os...
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typescript - Declare a type that allows all parts of all levels of another type
I have a function that returns any value of an object by a list of keys. Example: Given this interface interface Test { test1: string; test2: { ... even possible? Please check this snippet for an example See Question&Answers more detail:os...
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typescript - TS2339: Property does not exist on type
I'm converting a js file to ts in WebStorm 2016.2.2. I had the following snippet: ///<reference path="./typings/globals/node/index.d.ts" /> ... how can I fix it? Any help will be profoundly appreciated! See Question&Answers more detail:os...
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typescript - PrimeNG Quill Editor custom font-size setting issue with Angular 9
I want to to set custom font sizes in quill editor with Prime NG. I am using Angular 9.1. I upgraded my application from Angular 5 to Angular 9.In ... on selection. Can any body please help me on this? See Question&Answers more detail:os...
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typescript - Angular 4: Class with constructor as http Observable model
In my app, I have a model defined as Class with a constructor. Like this: export class Movie { title: string; posterURL: string; description: string; ... an interface or what? Thanks for the help :) See Question&Answers more detail:os...
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typescript - Why is the type "never" meaningless in union types?
Typescript playground I'm having some trouble while trying to wrap my head around the fact that the type never is meaningless and can be discarded when it ... about this so I can understand it better? See Question&Answers more detail:os...
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typescript - Multiple times method calling from angular template
I am using method inside a template to call the function, that returns boolean value. The issue is that the function is called more than 6 times. After ... why I am calling this method from the template. See Question&Answers more detail:os...
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typescript - AngularJS - Use ES6 imports instead of angular DI system
I'm using Webpack with angular 1.6.x and Typescript and I quit using angular DI in favor of ES6 imports. When I need some ng functions like ... (performance, bad practice and such) using this approach? See Question&Answers more detail:os...
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typescript - Where and how should I check an access token for validity in passportjs
I'm in the process of implementing refresh tokens and I use passportjs. What I don't completely understand is where and how I should check access ... 'Unauthorized', HttpStatus.UNAUTHORIZED); } } } } See Question&Answers more detail:os...
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Oct 24, 2021
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typescript - CamanJs with angular 6
I am trying to use camanjs with angular 6. How to add js lib and use it with angular when there are no types for it on npm. I follow many ... error link to code: https://stackblitz.com/edit/angular-d5g941 See Question&Answers more detail:os...
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Oct 24, 2021
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typescript - custom generic instanceof function
I am performing an instanceof check in *ngIf. <span *ngFor="let element of elements"> <app-text *ngIf="element instanceof BlueElement"></app- ... How should I rewrite the generic instanceOf() function? See Question&Answers more detail:os...
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typescript - Create a Record type with fixed length keys from string array of keys in another interface
This is the minimal code example. I have an interface named Foo which has property one which accepts an array of the object type. interface Foo { one: { ... [el.key] = "anything" // contrived example }) See Question&Answers more detail:os...
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typescript - Is it possible to define an interface/type to which excess property checks are always applied?
In TypeScript, excess property checks are applied to object literals, but not beyond that. (This is intentional documented behavior.) So given: interface ... the type definition, that would be useful. See Question&Answers more detail:os...
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typescript - How to add second sidemenu from other side
How can I add a second sidemenu? I have the normal sidemenu on the left side which works great. Now I want to add a second sidemenu with filter options. See Question&Answers more detail:os...
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typescript - Type of properties in a generic function
I'm trying to transform some fields of my object by providing field names, currently I wrote something like follows: interface Foo { a: number[], b: string ... ] and Parameters<Bar[T]> should be the same? See Question&Answers more detail:os...
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typescript - How to prevent assiging similar types?
How do I prevent TypeScript from allowing assigning similar but different types to a declared variable? Consider following classes: class Person { private ... to variables declared for another type? See Question&Answers more detail:os...
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