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1-js/08-prototypes/03-native-prototypes/2-defer-to-prototype-extended
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Original file line number	Diff line number	Diff line change
`@@ -15,3 +15,27 @@ function f(a, b) {`
`15`	`15`
`16`	`16`	`f.defer(1000)(1, 2); // shows 3 after 1 sec`
`17`	`17`	```
	`18`	`+`
	`19`	+Please note: we use `this` in `f.apply` to make our decoration work for object methods.
	`20`	`+`
	`21`	+So if the wrapper function is called as an object method, then `this` is passed to the original method `f`.
	`22`	`+`
	`23`	+```js run
	`24`	`+Function.prototype.defer = function(ms) {`
	`25`	`+ let f = this;`
	`26`	`+ return function(...args) {`
	`27`	`+ setTimeout(() => f.apply(this, args), ms);`
	`28`	`+ }`
	`29`	`+};`
	`30`	`+`
	`31`	`+let user = {`
	`32`	`+ name: "John",`
	`33`	`+ sayHi() {`
	`34`	`+ alert(this.name);`
	`35`	`+ }`
	`36`	`+}`
	`37`	`+`
	`38`	`+user.sayHi = user.sayHi.defer(1000);`
	`39`	`+`
	`40`	`+user.sayHi();`
	`41`	+```

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