Commit c258016

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adding getAt method

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Original file line number	Diff line number	Diff line change
`@@ -85,5 +85,21 @@ class LinkedList {`
`85`	`85`	`this.getLast().next = new Node(data);`
`86`	`86`	`}`
`87`	`87`	`}`
	`88`	`+`
	`89`	`+ getAt(index) {`
	`90`	`+ let counter = 0;`
	`91`	`+ let node = this.head;`
	`92`	`+ while(node) {`
	`93`	`+ if(counter === index) {`
	`94`	`+ return node;`
	`95`	`+ }`
	`96`	`+`
	`97`	`+ counter++;`
	`98`	`+ node = node.next;`
	`99`	`+ }`
	`100`	`+`
	`101`	`+ return null;`
	`102`	`+ }`
	`103`	`+`
`88`	`104`	`}`
`89`	`105`

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