Commit 0760c90

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minor fixes

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Original file line number	Diff line number	Diff line change
`@@ -11,7 +11,7 @@ An ideal solution would be to cancel all unfinished queries when one of them fai`
`11`	`11`
`12`	`12`	However, the bad news is that service calls (such as `database.query`) are often implemented by a 3rd-party library which doesn't support cancellation. Then there's no way to cancel a call.
`13`	`13`
`14`		-Instead we can write our own wrapper function around `Promise.all` which adds a custom `then/catch` handler to each promise to track them: results are gathered and, if an error occurs, all subsequent promises are ignored.
	`14`	+As an alternative, we can write our own wrapper function around `Promise.all` which adds a custom `then/catch` handler to each promise to track them: results are gathered and, if an error occurs, all subsequent promises are ignored.
`15`	`15`
`16`	`16`	```js
`17`	`17`	`function customPromiseAll(promises) {`
`@@ -46,7 +46,7 @@ It may be important that all queries complete, especially if some of them make i`
`46`	`46`
`47`	`47`	`So we should wait until all promises are settled before going further with the execution and eventually disconnecting.`
`48`	`48`
`49`		`-Here's one more implementation. It also resolves with the first error, but waits until all promises are settled.`
	`49`	`+Here's another implementation. It also resolves with the first error, but waits until all promises are settled.`
`50`	`50`
`51`	`51`	```js
`52`	`52`	`function customPromiseAllWait(promises) {`

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