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Merge pull requestneetcode-gh#2817 from chetannada/ltc-1486-js

Create 1486-XOR-operation-in-an-array.js

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	`1`	`+/**`
	`2`	`+ *@param {number} n`
	`3`	`+ *@param {number} start`
	`4`	`+ *@return {number}`
	`5`	`+ */`
	`6`	`+varxorOperation=function(n,start){`
	`7`	`+letnums=newArray(n).fill(0);// initialize a nums which is the length of n elements with 0 value of Array using Array() nad fill()`
	`8`	`+`
	`9`	`+for(leti=0;i<n;i++){// loop through the 0 to n`
	`10`	`+nums[i]=start+(2*i);// current element of nums is equal to sum of start and twice the i`
	`11`	`+}`
	`12`	`+`
	`13`	`+returnnums.reduce((a,b)=>a^b);// return the bitwise XOR of all elements of nums using reduce()`
	`14`	`+};`

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