Commit 145b988

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add: Group Anagrams

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`@@ -29,6 +29,7 @@ This is the solutions collection of my LeetCode submissions, most of them are pr`
`29`	`29`	`\|43\|[Multiply Strings](https://leetcode.com/problems/multiply-strings/) \| [JavaScript](./src/multiply-strings/res.js)\|Medium\|`
`30`	`30`	`\|46\|[Permutations](https://leetcode.com/problems/permutations/) \| [JavaScript](./src/permutations/res.js)\|Medium\|`
`31`	`31`	`\|48\|[Rotate Image](https://leetcode.com/problems/rotate-image/) \| [JavaScript](./src/rotate-image/res.js)\|Medium\|`
	`32`	`+\|49\|[Group Anagrams](https://leetcode.com/problems/anagrams/) \| [JavaScript](./src/anagrams/res.js)\|Medium\|`
`32`	`33`	`\|54\|[Spiral Matrix](https://leetcode.com/problems/spiral-matrix/) \| [JavaScript](./src/spiral-matrix/res.js)\|Medium\|`
`33`	`34`	`\|66\|[Plus One](https://leetcode.com/problems/plus-one/) \| [JavaScript](./src/plus-one/res.js)\|Easy\|`
`34`	`35`	`\|69\|[Sqrt(x)](https://leetcode.com/problems/sqrtx/) \| [JavaScript](./src/sqrtx/res.js)\|Easy\|`

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	`1`	`+/**`
	`2`	`+ * res.js`
	`3`	`+ * @authors Joe Jiang (hijiangtao@gmail.com)`
	`4`	`+ * @date 2017年05月10日 22:14:38`
	`5`	`+ *`
	`6`	`+ * @param {string[]} strs`
	`7`	`+ * @return {string[][]}`
	`8`	`+ */`
	`9`	`+let groupAnagrams = function(strs) {`
	`10`	`+ let len = strs.length;`
	`11`	`+ if (!len) return [];`
	`12`	`+`
	`13`	`+ let hashmap = new Map();`
	`14`	`+ for (let i = 0; i < len; i++) {`
	`15`	`+ let tmparr = strs[i].split('');`
	`16`	`+ tmparr.sort();`
	`17`	`+ tmparr = tmparr.join();`
	`18`	`+ if (!hashmap.has(tmparr)) {`
	`19`	`+ hashmap.set(tmparr, [strs[i]]);`
	`20`	`+ } else {`
	`21`	`+ let tmp = hashmap.get(tmparr);`
	`22`	`+ tmp.push(strs[i]);`
	`23`	`+ hashmap.set(tmparr, tmp);`
	`24`	`+ }`
	`25`	`+ }`
	`26`	`+`
	`27`	`+ let res = [];`
	`28`	`+ console.log(hashmap);`
	`29`	`+ for (let [key, value] of hashmap) {`
	`30`	`+ res.push(value);`
	`31`	`+ }`
	`32`	`+`
	`33`	`+ return res;`
	`34`	`+};`

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