Commit 5eea378

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Add annotations to Queue.

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Lines changed: 16 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -5,10 +5,16 @@ export default class Queue {`
`5`	`5`	`this.linkedList = new LinkedList();`
`6`	`6`	`}`
`7`	`7`
	`8`	`+ /**`
	`9`	`+ * @return {boolean}`
	`10`	`+ */`
`8`	`11`	`isEmpty() {`
`9`	`12`	`return !this.linkedList.tail;`
`10`	`13`	`}`
`11`	`14`
	`15`	`+ /**`
	`16`	`+ * @return {*}`
	`17`	`+ */`
`12`	`18`	`peek() {`
`13`	`19`	`if (!this.linkedList.head) {`
`14`	`20`	`return null;`
`@@ -17,15 +23,25 @@ export default class Queue {`
`17`	`23`	`return this.linkedList.head.value;`
`18`	`24`	`}`
`19`	`25`
	`26`	`+ /**`
	`27`	`+ * @param {*} value`
	`28`	`+ */`
`20`	`29`	`enqueue(value) {`
`21`	`30`	`this.linkedList.append(value);`
`22`	`31`	`}`
`23`	`32`
	`33`	`+ /**`
	`34`	`+ * @return {*}`
	`35`	`+ */`
`24`	`36`	`dequeue() {`
`25`	`37`	`const removedHead = this.linkedList.deleteHead();`
`26`	`38`	`return removedHead ? removedHead.value : null;`
`27`	`39`	`}`
`28`	`40`
	`41`	`+ /**`
	`42`	`+ * @param [callback]`
	`43`	`+ * @return {string}`
	`44`	`+ */`
`29`	`45`	`toString(callback) {`
`30`	`46`	`return this.linkedList.toString(callback);`
`31`	`47`	`}`

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