All Questions
Tagged with es6-proxy typescript
23
questions
0
votes
0
answers
21
views
Typescript derives different types when a static method is called from inside or outside a class
Can someone help me explain the behavior of typescript in this example. I have no idea what is going on here. Why is childProxy1.foo not resolved while childProxy2.foo is resolved correctly? Why is ...
-1
votes
1
answer
52
views
Why is Proxy being called for nested elements?
I'm attempting to abstract some Cypress methods into a helper object using getters.
The intended behavior is that I can do something like this:
todoApp.todoPage.todoApp.main.rows.row
.first()....
- 1,405
0
votes
1
answer
616
views
Typescript: function should return proxy object of generic object type
The following function should create a proxy object with a specific handler, but typescript is throwing a type error when I try it that way.
function createProxiedObject<T extends object>(obj: T)...
- 521
1
vote
1
answer
233
views
Implement a dynamic lazy proxy collection class on typescript
I'm trying to implement a lazy database connection collection in typescript. I'm creating a class called DatabaseCollection and my idea is to use a proxy to lazy load the connections (I'm using knex ...
- 19.6k
0
votes
1
answer
840
views
TypeScript types for Proxy with dynamic properties
I want to type a JavaScript Proxy that allows access to arbitrary properties. A contrived example, an object that maps every property to it's own property name:
const proxy = new Proxy({}, {
get(...
- 2,838
0
votes
0
answers
1k
views
property 'prototype' is a read-only and non-configurable data property on the proxy target but the proxy did not return its actual value
I want interception object with proxy，but I can’t understand why I report an error
function createReactiveObject(target) {
if (!isObject(target)) {
return target;
}
return ...
1
vote
1
answer
827
views
Javascript proxy for nested object (apply for all function calls)
I'm looking for away to use a proxy on a nested object. In this example I would like to add 1 in my proxy for the result of every function call in that object. How would I go about this, since I can't ...
- 880
1
vote
0
answers
527
views
trying to set Proxy trap for a nested object. succeeded intercession except array.unshift and array.splice and some others
i am trying to make a Proxy trap for a nested object (kinda trying to implement vuex reactive).
kinda succeeded in setting trap following this post:
How to use javascript proxy for nested objects
my ...
- 160
-1
votes
1
answer
1k
views
Use Proxy on Class while maintaining access to existing properties and class type
In an effort to learn how Proxy works I wanted to try and make a Proxied class that can handle any property name, even those that don't exist in the class, while still maintaining access to old ...
- 3,295
0
votes
1
answer
120
views
Is there a way to describe type for Proxy based on modified properties in typescript
I have a list of routes:
export interface RouteMap {
routeA: string;
routeB: string;
routeC: string;
...
}
const routesMap: RouteMap = {
routeA: 'route-a-url',
routeB: 'route-b-url/:...
- 469
0
votes
1
answer
522
views
Weird issue about JavaScript Proxy and getter functions
The two test cases blow both pass. I simply don't understand the behavior. It seems that JavaScript Proxy cannot trap property getting inside a getter function.
test('JS Proxy normal method', () => ...
- 20.1k
0
votes
1
answer
27
views
Create a construct that evaluates to a string and can have other strings as properties
I'd like to make particular JavaScript construct, with appropriate TypeScript typings
I want my construct to:
return a string when evaluated
have properties that return different strings when ...
- 1,943
0
votes
1
answer
363
views
ES6 Proxy: set property trap with debounce, is it possible to avoid dictionary of callbacks?
Goal: get any changed form field as 'name-value' pair on user input with debounce while typing.
Sample template (person is two-way binded model).
<form>
<q-input v-model="person....
- 425
1
vote
2
answers
88
views
Registering property changes of an object from another object
In my project, I have a widgetBar that can contain one or more widgets.
When clicking on the widget icon in the widgetBar, a panel is opened to show the conent of the pressed widget (kind of a ...
- 3,284
0
votes
0
answers
339
views
Get property type from setter on proxy class Typescript
I'm stuck in a problem. I'm creating a proxy for my BaseModel Class that have the base methods to interact with mongoose in a type way.
In my case I need get the type of the property to be setted to ...
- 531