# Group Anagrams – LeetCode challenge Javascript solution Hashmap

Rajesh Royal Originally published at rajeshroyal.com on ・1 min read

## Group Anagrams Problem statement:

Given an array of strings, group anagrams together.

Example:

``````**Input:** ["eat", "tea", "tan", "ate", "nat", "bat"],
**Output:** [["ate","eat","tea"], ["nat","tan"], ["bat"]]
``````

Note:

• All inputs will be in lowercase.
• The order of your output does not matter.

## Group Anagrams ES6 solution

``````/\*\* \* @param {string[]}
strs \* @return {string[][]} \*/

var groupAnagrams = function(strs) {

function logMapElements(value, key, map) {
lastarray.push(value.split(','))
//push value of the current key "key" = "ate","tea"
}

let map = new Map();
let lastarray = Array();

strs.map(function(crntvalue){
let orig = crntvalue;
let sorted = crntvalue.split('').sort().join('');
//sort the orignal array word

if(map.has(sorted)){
let crnt = map.get(sorted);
//get current keypair value

map.set(sorted, crnt += ','+orig)
//add new value with current key pair
}else{
map.set(sorted, orig);
//create key and value
}
});

map.forEach(logMapElements);
//iterate through each map element

return lastarray;
};
``````

## Submission Output on LeetCode:

Posted on by:

### Rajesh Royal

Designer, Front-end Developer, Traveller, Hooper. I design and code beautifully simple things, and I love what I do.