Commit d8cbdee

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remove duplicates from array

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	`1`	`+/* Implement a function to remove duplicates from an array and returning an array of only unique elements */`
	`2`	`+`
	`3`	`+function uniqueArray(arr) {`
	`4`	`+ var hashMap = {};`
	`5`	`+ var uniqueArr = [];`
	`6`	`+`
	`7`	`+ for (var i = 0; i < arr.length; i++) {`
	`8`	`+ if (!hashMap.hasOwnProperty(arr[i])) {`
	`9`	`+ uniqueArr.push(arr[i]);`
	`10`	`+ }`
	`11`	`+ }`
	`12`	`+ return uniqueArr;`
	`13`	`+}`
	`14`	`+`
	`15`	`+// test cases`
	`16`	`+var myArray = [1, 2, 3, 5, 1, 5, 9, 1, 2, 8];`
	`17`	`+console.log(uniqueArray(myArray));`

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