Easy JS Solution 0xrisec
Intuition\n Describe your first thoughts on how to solve this problem. \n\n# Approach\n Describe your approach to solving the problem. \n\n# Complexity\n- Time 
# Intuition\n<!-- Describe your first thoughts on how to solve this problem. -->\n\n# Approach\n<!-- Describe your approach to solving the problem. -->\n\n# Complexity\n- Time complexity:\n<!-- Add your time complexity here, e.g. $$O(n)$$ -->\n\n- Space complexity:\n<!-- Add your space complexity here, e.g. $$O(n)$$ -->\n\n# Code\n```javascript []\n/**\n * @param {string} s1\n * @param {string} s2\n * @return {string[]}\n */\n/**\n * @param {string} s1\n * @param {string} s2\n * @return {string[]}\n */\nvar uncommonFromSentences = function(s1, s2) {\n    let map = new Map();\n   \tlet str = s1.concat(" ", s2);\n    let result = [];\n    s1.concat(" ", s2).split(\' \').forEach((word)=>{\n        map.set(word, (map.get(word) || 0) + 1);\n    });\n    \n    for(let [key, val] of map){\n        if(val === 1) result.push(key);\n    }\n   \n    return result; \n};\n```
['JavaScript']