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Commit 6ce33d6

mamenesia mamenesia

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adding removeFirst and removeLast method

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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
`@@ -49,6 +49,34 @@ class LinkedList {`
`49`	`49`	`clear() {`
`50`	`50`	`this.head = null;`
`51`	`51`	`}`
	`52`	`+`
	`53`	`+ removeFirst() {`
	`54`	`+ if(!this.head) {`
	`55`	`+ return;`
	`56`	`+ }`
	`57`	`+`
	`58`	`+ this.head = this.head.next;`
	`59`	`+ }`
	`60`	`+`
	`61`	`+ removeLast() {`
	`62`	`+`
	`63`	`+ if(!this.head) {`
	`64`	`+ return;`
	`65`	`+ } else if(!this.head.next) {`
	`66`	`+ previous = null;`
	`67`	`+ return;`
	`68`	`+ }`
	`69`	`+`
	`70`	`+ let previous = this.head;`
	`71`	`+ let node = this.head.next;`
	`72`	`+`
	`73`	`+ while(node.next) {`
	`74`	`+ previous = node;`
	`75`	`+ node = node.next;`
	`76`	`+ }`
	`77`	`+`
	`78`	`+ previous.next = null;`
	`79`	`+ }`
`52`	`80`	`}`
`53`	`81`	`}`
`54`	`82`

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