All Questions
Tagged with es6-proxy metaprogramming
6
questions
-1
votes
1
answer
207
views
Javascript construct trap not working in class returning proxy
I am trying to create a little javascript two way form binder using proxies. I am stuck on how I can intercept 'new' calls. I use a 'construct' trap but it doesn't fire. Here is my code, I have ...
- 355
6
votes
1
answer
578
views
Using ES6 Proxy to lazily load resources
I am building something like an ActiveRecord class for documents stored in MongoDB (akin to Mongoose). I have two goals:
Intercept all property setters on a document using a Proxy, and automatically ...
- 551
2
votes
0
answers
242
views
run cleanups automatically when a block variable gets out of scope in javascript
the answer to this question will probably be "it cannot be done with out writing a custom javaScript parser" but here i go:
while developing some lightweight scripting tool i ran into a need to do ...
- 118
3
votes
1
answer
572
views
Trapping class definition via Proxy in ES6
Is it possible to trap extends? Or to trap definitions inside a class? Eg:
class B extends A {
method1( ) { }
static method2( ) { }
}
Is there any way to trap the events that:
B extended A.
...
- 766
5
votes
1
answer
595
views
What would be a use case for identity-preserving membrane proxies?
When I was reading about ES6 Proxies, it seemed simple enough to understand until I had taken a look at this example.
I'm stumped. I don't understand the "wet/dry" terminology that they use, ...
- 13.9k
31
votes
4
answers
10k
views
How do I trap arguments to a target method when using a Proxy object?
I'm trying to use Javascript Proxy objects to trap the arguments that are passed to a 'method' of the target that I'm proxying.
Please consider this example:
var test = {
doSomething: function() ...
- 22.7k