This content originally appeared on DEV Community and was authored by Beto Muniz
Just a catch up about how the Proxy object works on JavaScript to allow us to implement Proxy patterns.
? JavaScript's Proxy object allows us to intercept and modifies any JavaScript object.
? JavaScript's Proxy object is an elegant and safe way for creating or extending libraries, caching, error handling, and complex data manipulation on JavaScript.
const obj = {a: 1, b: 2};
const arrProxy = new Proxy(obj, {
get: function (item, property) {
if (item.hasOwnProperty(property)) return item[property];
return "default value";
},
});
arrProxy.z; // "default value"
arrProxy.a; // 1
? What are the use cases that you most liked to use such a JavaScript feature?
? Still, for a detailed API spec of Proxy's object in JavaScript, take a look in the MDN docs.
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This content originally appeared on DEV Community and was authored by Beto Muniz
Beto Muniz | Sciencx (2021-05-03T21:03:24+00:00) Proxy Pattern in JavaScript. Retrieved from https://www.scien.cx/2021/05/03/proxy-pattern-in-javascript/
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