Today #Day143 of #365DaysOfCode, I am Solving Leet code 217. Contains Duplicate.
Example:
let arr = [1,2,3,4,5]
console.log(arr);
//const arr2 = new Set(arr)
const arr2 = Array.from(new Set(arr))
console.log(arr2);
const isDup = (x,y)=>{
console.log(x);
console.log(y);
// return x.size != y.length
return x.length != y.length
}
console.log(isDup(arr,arr2));
console.log(arr == arr2);
Leetcode:
/**
* @param {number[]} nums
* @return {boolean}
*/
var containsDuplicate = function(nums) {
const nums2 = new Set(nums)
return nums2.size != nums.length
};
Conclusion
I solved Leet code 217. Contains Duplicate.