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closes #1294

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1-js/06-advanced-functions/09-call-apply-decorators/01-spy-decorator
- _js.view
  - solution.js
- solution.md

-3

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Lines changed: 3 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -1,11 +1,12 @@`
`1`	`1`	`function spy(func) {`
`2`	`2`
`3`	`3`	`function wrapper(...args) {`
	`4`	`+ // using ...args instead of arguments to store "real" array in wrapper.calls`
`4`	`5`	`wrapper.calls.push(args);`
`5`		`- return func.apply(this, arguments);`
	`6`	`+ return func.apply(this, args);`
`6`	`7`	`}`
`7`	`8`
`8`	`9`	`wrapper.calls = [];`
`9`	`10`
`10`	`11`	`return wrapper;`
`11`		`-}`
	`12`	`+}`

Lines changed: 1 addition & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -1 +1 @@`
`1`		-Here we can use `calls.push(args)` to store all arguments in the log and `f.apply(this, args)` to forward the call.
	`1`	+The wrapper returned by `spy(f)` should store all arguments and then use `f.apply` to forward the call.

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