Commit b8fb442

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Add alternative solutions

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Lines changed: 5 additions & 12 deletions

Original file line number	Diff line number	Diff line change
`@@ -1224,18 +1224,8 @@ console.log(uniqueInOrder('AAAABBBCCDAABBB')); // ['A', 'B', 'C', 'D', 'A', 'B']`
`1224`	`1224`
`1225`	`1225`	```js
`1226`	`1226`	`const uniqueInOrder = iterable => {`
`1227`		`- const len = iterable.length;`
`1228`		`- let result = [];`
`1229`		`- let lastItem;`
`1230`		`-`
`1231`		`- for (let i = 0; i < len; i++) {`
`1232`		`- if (iterable[i] !== lastItem) {`
`1233`		`- result.push(iterable[i]);`
`1234`		`- lastItem = iterable[i];`
`1235`		`- }`
`1236`		`- }`
`1237`		`-`
`1238`		`- return result;`
	`1227`	`+ const arr = [...iterable];`
	`1228`	`+ return arr.filter((ele, index) => ele !== arr[index - 1]);`
`1239`	`1229`	`};`
`1240`	`1230`	```
`1241`	`1231`
`@@ -1330,6 +1320,9 @@ console.log(songDecoder('WUBWEWUBAREWUBWUBTHEWUBCHAMPIONSWUBMYWUBFRIENDWUB'));`
`1330`	`1320`	```js
`1331`	`1321`	`const songDecoder = song => {`
`1332`	`1322`	`return song.replace(/(WUB)+/g, ' ').trim();`
	`1323`	`+`
	`1324`	`+ // Alternative solution`
	`1325`	`+ // return song.split('WUB').filter(Boolean).join(' ');`
`1333`	`1326`	`};`
`1334`	`1327`	```
`1335`	`1328`

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