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showing results for - "compare two arrays and make sure there are no duplicates js"
Luca
05 Sep 2016
1let array1 = ['a','b','c'];
2let array2 = ['c','c','d','e'];
3let array3 = array1.concat(array2);
4array3 = [...new Set([...array1,...array2])]; // O(n)
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Marco
05 Jan 2021
1array1 = array1.filter(val => !array2.includes(val));
2
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