Commit 33ac110

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Make it possible to attach meta information to binary tree node.

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+12

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+12

-2

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Lines changed: 4 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -2,13 +2,15 @@ import Comparator from '../../utils/comparator/Comparator';`
`2`	`2`
`3`	`3`	`export default class BinaryTreeNode {`
`4`	`4`	`/**`
`5`		`- * @param {*} [value]`
	`5`	`+ * @param {*} [value] - node value.`
	`6`	`+ * @param {Object} meta - any meta information that needs to be attached to the node.`
`6`	`7`	`*/`
`7`		`- constructor(value = null) {`
	`8`	`+ constructor(value = null,meta={}) {`
`8`	`9`	`this.left = null;`
`9`	`10`	`this.right = null;`
`10`	`11`	`this.parent = null;`
`11`	`12`	`this.value = value;`
	`13`	`+ this.meta = meta;`
`12`	`14`
`13`	`15`	`// This comparator is used to compare binary tree nodes with each other.`
`14`	`16`	`this.nodeComparator = new Comparator();`

Lines changed: 8 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -196,4 +196,12 @@ describe('BinaryTreeNode', () => {`
`196`	`196`	`expect(node1.toString()).toBe('object_1');`
`197`	`197`	`expect(node2.toString()).toBe('[object Object]');`
`198`	`198`	`});`
	`199`	`+`
	`200`	`+ it('should be possible to attach meta information to the node', () => {`
	`201`	`+ const redNode = new BinaryTreeNode(1, { color: 'red' });`
	`202`	`+ const blackNode = new BinaryTreeNode(2, { color: 'black' });`
	`203`	`+`
	`204`	`+ expect(redNode.meta.color).toBe('red');`
	`205`	`+ expect(blackNode.meta.color).toBe('black');`
	`206`	`+ });`
`199`	`207`	`});`

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