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feat: add ts solution to lc problem No.290 (doocs#2969)

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Original file line number	Diff line number	Diff line change
`@@ -261,4 +261,36 @@ public class Solution {`
`261`	`261`
`262`	`262`	`<!-- solution:end -->`
`263`	`263`
	`264`	`+<!-- solution:start -->`
	`265`	`+`
	`266`	`+### 方法二:哈希表的另一种写法`
	`267`	`+`
	`268`	`+<!-- tabs:start -->`
	`269`	`+`
	`270`	`+#### TypeScript`
	`271`	`+`
	`272`	+```ts
	`273`	`+function wordPattern(pattern: string, s: string): boolean {`
	`274`	`+ const hash: Record<string, string> = Object.create(null);`
	`275`	`+ const arr = s.split(/\s+/);`
	`276`	`+`
	`277`	`+ if (pattern.length !== arr.length \|\| new Set(pattern).size !== new Set(arr).size) {`
	`278`	`+ return false;`
	`279`	`+ }`
	`280`	`+`
	`281`	`+ for (let i = 0; i < pattern.length; i++) {`
	`282`	`+ hash[pattern[i]] ??= arr[i];`
	`283`	`+ if (hash[pattern[i]] !== arr[i]) {`
	`284`	`+ return false;`
	`285`	`+ }`
	`286`	`+ }`
	`287`	`+`
	`288`	`+ return true;`
	`289`	`+}`
	`290`	+```
	`291`	`+`
	`292`	`+<!-- tabs:end -->`
	`293`	`+`
	`294`	`+<!-- solution:end -->`
	`295`	`+`
`264`	`296`	`<!-- problem:end -->`

Lines changed: 32 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -262,4 +262,36 @@ public class Solution {`
`262`	`262`
`263`	`263`	`<!-- solution:end -->`
`264`	`264`
	`265`	`+<!-- solution:start -->`
	`266`	`+`
	`267`	`+### Solution 2`
	`268`	`+`
	`269`	`+<!-- tabs:start -->`
	`270`	`+`
	`271`	`+#### TypeScript`
	`272`	`+`
	`273`	+```ts
	`274`	`+function wordPattern(pattern: string, s: string): boolean {`
	`275`	`+ const hash: Record<string, string> = Object.create(null);`
	`276`	`+ const arr = s.split(/\s+/);`
	`277`	`+`
	`278`	`+ if (pattern.length !== arr.length \|\| new Set(pattern).size !== new Set(arr).size) {`
	`279`	`+ return false;`
	`280`	`+ }`
	`281`	`+`
	`282`	`+ for (let i = 0; i < pattern.length; i++) {`
	`283`	`+ hash[pattern[i]] ??= arr[i];`
	`284`	`+ if (hash[pattern[i]] !== arr[i]) {`
	`285`	`+ return false;`
	`286`	`+ }`
	`287`	`+ }`
	`288`	`+`
	`289`	`+ return true;`
	`290`	`+}`
	`291`	+```
	`292`	`+`
	`293`	`+<!-- tabs:end -->`
	`294`	`+`
	`295`	`+<!-- solution:end -->`
	`296`	`+`
`265`	`297`	`<!-- problem:end -->`

Lines changed: 17 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,17 @@`
	`1`	`+function wordPattern(pattern: string, s: string): boolean {`
	`2`	`+ const hash: Record<string, string> = Object.create(null);`
	`3`	`+ const arr = s.split(/\s+/);`
	`4`	`+`
	`5`	`+ if (pattern.length !== arr.length \|\| new Set(pattern).size !== new Set(arr).size) {`
	`6`	`+ return false;`
	`7`	`+ }`
	`8`	`+`
	`9`	`+ for (let i = 0; i < pattern.length; i++) {`
	`10`	`+ hash[pattern[i]] ??= arr[i];`
	`11`	`+ if (hash[pattern[i]] !== arr[i]) {`
	`12`	`+ return false;`
	`13`	`+ }`
	`14`	`+ }`
	`15`	`+`
	`16`	`+ return true;`
	`17`	`+}`

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