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);...

asked May 17, 2022 in Technique[技术] by khmub (100 points)

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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...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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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...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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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...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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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...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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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...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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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...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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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...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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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...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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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...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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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...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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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...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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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...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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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...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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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...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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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...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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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...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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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...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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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...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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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...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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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...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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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...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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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...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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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...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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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...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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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...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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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...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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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...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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