Created
February 3, 2020 05:06
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Javascript Freecodecamp Algorithm #27: Find The Symmetric Difference (N Squared Solution)
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| const symOfTwo = (arr1, arr2) => { | |
| const set1 = new Set(arr1); | |
| const set2 = new Set(arr2); | |
| const combinedArr = [...set1, ...set2]; | |
| const elObj = {}; | |
| for (const el of combinedArr) { | |
| if (el in elObj) { | |
| elObj[el]++; | |
| } else { | |
| elObj[el] = 1; | |
| } | |
| } | |
| const output = []; | |
| for (const el in elObj) { | |
| if (elObj[el] === 1) { | |
| output.push(Number(el)); | |
| } | |
| } | |
| return output; | |
| }; | |
| function sym() { | |
| const arrOfArrs = [...arguments]; | |
| let output = arrOfArrs[0]; | |
| for (let i=1; i < arrOfArrs.length; i++) { | |
| output = symOfTwo(output, arrOfArrs[i]); | |
| } | |
| return output; | |
| } |
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