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Commit 4e59e81

mamenesia mamenesia

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adding getFirst, getLast and clear method to linkedList

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linkedList
- linkedList.js

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`‎linkedList/linkedList.js‎`

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Original file line number	Diff line number	Diff line change
`@@ -27,5 +27,28 @@ class LinkedList {`
`27`	`27`	`}`
`28`	`28`	`return counter;`
`29`	`29`	`}`
	`30`	`+`
	`31`	`+ getFirst() {`
	`32`	`+ return this.head;`
	`33`	`+ }`
	`34`	`+`
	`35`	`+ getLast() {`
	`36`	`+ if(!this.head) {`
	`37`	`+ return null;`
	`38`	`+ }`
	`39`	`+`
	`40`	`+ let node = this.head;`
	`41`	`+ while(node) {`
	`42`	`+ if(!node.next) {`
	`43`	`+ return node;`
	`44`	`+ }`
	`45`	`+`
	`46`	`+ node = node.next;`
	`47`	`+ }`
	`48`	`+`
	`49`	`+ clear() {`
	`50`	`+ this.head = null;`
	`51`	`+ }`
	`52`	`+ }`
`30`	`53`	`}`
`31`	`54`

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