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minor fixes

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Original file line number	Diff line number	Diff line change
@@ -212,7 +212,7 @@ But we can force the exit at any time using the special `break` directive.
`212`	`212`
`213`	`213`	`For example, the loop below asks the user for a series of numbers, "breaking" when no number is entered:`
`214`	`214`
`215`		-```js
	`215`	+```js run
`216`	`216`	`let sum = 0;`
`217`	`217`
`218`	`218`	`while (true) {`

Lines changed: 4 additions & 2 deletions

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`@@ -142,15 +142,17 @@ for (let char of str) {`
`142`	`142`
`143`	`143`	`For deeper understanding let's see how to use an iterator explicitly.`
`144`	`144`
`145`		-We'll iterate over a string in exactlly the same way as `for..of`, but with direct calls. This code creates a string iterator and gets values from it "manually":
	`145`	+We'll iterate over a string in exactly the same way as `for..of`, but with direct calls. This code creates a string iterator and gets values from it "manually":
`146`	`146`
`147`	`147`	```js run
`148`	`148`	`let str = "Hello";`
`149`	`149`
`150`	`150`	`// does the same as`
`151`	`151`	`// for (let char of str) alert(char);`
`152`	`152`
	`153`	`+!`
`153`	`154`	`let iterator = str[Symbol.iterator]();`
	`155`	`+/!`
`154`	`156`
`155`	`157`	`while (true) {`
`156`	`158`	`let result = iterator.next();`
`@@ -268,7 +270,7 @@ for (let char of str) {`
`268`	`270`	`alert(chars);`
`269`	`271`	```
`270`	`272`
`271`		`-...But is shorter.`
	`273`	`+...But it is shorter.`
`272`	`274`
`273`	`275`	We can even build surrogate-aware `slice` on it:
`274`	`276`

Lines changed: 1 addition & 1 deletion

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@@ -40,7 +40,7 @@ The syntax to extend another class is: `class Child extends Parent`.
`40`	`40`
`41`	`41`	Let's create `class Rabbit` that inherits from `Animal`:
`42`	`42`
`43`		-```js
	`43`	+```js run
`44`	`44`	`!`
`45`	`45`	`class Rabbit extends Animal {`
`46`	`46`	`/!`

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`@@ -56,7 +56,7 @@ Now the order is as intended.`
`56`	`56`
`57`	`57`	Remember the `unhandledrejection` event from the chapter <info:promise-error-handling>?
`58`	`58`
`59`		`-Now we can see exactly how JavaScript finds out that there was an unhandled rejection`
	`59`	`+Now we can see exactly how JavaScript finds out that there was an unhandled rejection.`
`60`	`60`
`61`	`61`	`"Unhandled rejection" occurs when a promise error is not handled at the end of the microtask queue.`
`62`	`62`

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