The Class Proxy is used to define custom behavior for fundamental operations (e.g. property lookup, assignment, enumeration, function invocation, etc).
npm install class-proxy> The Class Proxy is used to define custom behavior for fundamental operations (e.g. property lookup, assignment, enumeration, function invocation, etc).
npm install class-proxy
``ts
import createClassProxy from 'class-proxy';
import { createClassProxy } from 'class-proxy';
var createClassProxy = require("class-proxy/node");
`
`ts
import { implementation as URLImpl } from 'whatwg-url/lib/URL-impl';
let URLImplProxy2 = createClassProxy(URLImpl, {
get(target, name)
{
return target[name];
},
set(target, prop, value, receiver)
{
if (prop == '_query')
{
value._url = target;
console.log(value);
}
target[prop] = value;
return true;
},
ownKeys(target): string[]
{
return [
'href',
'origin',
'protocol',
'username',
'password',
'host',
'hostname',
'port',
'pathname',
'search',
'hash',
'searchParams',
];
},
getOwnPropertyDescriptor(target, prop)
{
return {
value: target[prop],
enumerable: this.ownKeys(target).includes(prop),
configurable: true,
};
},
construct(target, args)
{
if (typeof args[0] == 'string')
{
return new target([args[0]]);
}
return new target(...args);
}
});
``