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feat: add ts solution to lc problem: No.0146 (doocs#1670)

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Original file line number	Diff line number	Diff line change
`@@ -568,6 +568,44 @@ private:`
`568`	`568`	`*/`
`569`	`569`	```
`570`	`570`
	`571`	`+### TypeScript`
	`572`	`+`
	`573`	+```ts
	`574`	`+class LRUCache {`
	`575`	`+ capacity: number;`
	`576`	`+ map: Map<number, number>;`
	`577`	`+ constructor(capacity: number) {`
	`578`	`+ this.capacity = capacity;`
	`579`	`+ this.map = new Map();`
	`580`	`+ }`
	`581`	`+`
	`582`	`+ get(key: number): number {`
	`583`	`+ if (this.map.has(key)) {`
	`584`	`+ const val = this.map.get(key)!;`
	`585`	`+ this.map.delete(key);`
	`586`	`+ this.map.set(key, val);`
	`587`	`+ return val;`
	`588`	`+ }`
	`589`	`+ return -1;`
	`590`	`+ }`
	`591`	`+`
	`592`	`+ put(key: number, value: number): void {`
	`593`	`+ this.map.delete(key);`
	`594`	`+ this.map.set(key, value);`
	`595`	`+ if (this.map.size > this.capacity) {`
	`596`	`+ this.map.delete(this.map.keys().next().value);`
	`597`	`+ }`
	`598`	`+ }`
	`599`	`+}`
	`600`	`+`
	`601`	`+/**`
	`602`	`+ * Your LRUCache object will be instantiated and called as such:`
	`603`	`+ * var obj = new LRUCache(capacity)`
	`604`	`+ * var param_1 = obj.get(key)`
	`605`	`+ * obj.put(key,value)`
	`606`	`+ */`
	`607`	+```
	`608`	`+`
`571`	`609`	`### ...`
`572`	`610`
`573`	`611`	```

Lines changed: 38 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -516,6 +516,44 @@ private:`
`516`	`516`	`*/`
`517`	`517`	```
`518`	`518`
	`519`	`+### TypeScript`
	`520`	`+`
	`521`	+```ts
	`522`	`+class LRUCache {`
	`523`	`+ capacity: number;`
	`524`	`+ map: Map<number, number>;`
	`525`	`+ constructor(capacity: number) {`
	`526`	`+ this.capacity = capacity;`
	`527`	`+ this.map = new Map();`
	`528`	`+ }`
	`529`	`+`
	`530`	`+ get(key: number): number {`
	`531`	`+ if (this.map.has(key)) {`
	`532`	`+ const val = this.map.get(key)!;`
	`533`	`+ this.map.delete(key);`
	`534`	`+ this.map.set(key, val);`
	`535`	`+ return val;`
	`536`	`+ }`
	`537`	`+ return -1;`
	`538`	`+ }`
	`539`	`+`
	`540`	`+ put(key: number, value: number): void {`
	`541`	`+ this.map.delete(key);`
	`542`	`+ this.map.set(key, value);`
	`543`	`+ if (this.map.size > this.capacity) {`
	`544`	`+ this.map.delete(this.map.keys().next().value);`
	`545`	`+ }`
	`546`	`+ }`
	`547`	`+}`
	`548`	`+`
	`549`	`+/**`
	`550`	`+ * Your LRUCache object will be instantiated and called as such:`
	`551`	`+ * var obj = new LRUCache(capacity)`
	`552`	`+ * var param_1 = obj.get(key)`
	`553`	`+ * obj.put(key,value)`
	`554`	`+ */`
	`555`	+```
	`556`	`+`
`519`	`557`	`### ...`
`520`	`558`
`521`	`559`	```

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Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,33 @@`
	`1`	`+class LRUCache {`
	`2`	`+ capacity: number;`
	`3`	`+ map: Map<number, number>;`
	`4`	`+ constructor(capacity: number) {`
	`5`	`+ this.capacity = capacity;`
	`6`	`+ this.map = new Map();`
	`7`	`+ }`
	`8`	`+`
	`9`	`+ get(key: number): number {`
	`10`	`+ if (this.map.has(key)) {`
	`11`	`+ const val = this.map.get(key)!;`
	`12`	`+ this.map.delete(key);`
	`13`	`+ this.map.set(key, val);`
	`14`	`+ return val;`
	`15`	`+ }`
	`16`	`+ return -1;`
	`17`	`+ }`
	`18`	`+`
	`19`	`+ put(key: number, value: number): void {`
	`20`	`+ this.map.delete(key);`
	`21`	`+ this.map.set(key, value);`
	`22`	`+ if (this.map.size > this.capacity) {`
	`23`	`+ this.map.delete(this.map.keys().next().value);`
	`24`	`+ }`
	`25`	`+ }`
	`26`	`+}`
	`27`	`+`
	`28`	`+/**`
	`29`	`+ * Your LRUCache object will be instantiated and called as such:`
	`30`	`+ * var obj = new LRUCache(capacity)`
	`31`	`+ * var param_1 = obj.get(key)`
	`32`	`+ * obj.put(key,value)`
	`33`	`+ */`

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