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Fix issue #98.
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@ -132,6 +132,9 @@ export default class BinarySearchTreeNode extends BinaryTreeNode {
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}
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}
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}
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}
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// Clear the parent of removed node.
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nodeToRemove.parent = null;
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return true;
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return true;
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}
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}
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@ -243,4 +243,13 @@ describe('BinarySearchTreeNode', () => {
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expect(bstNode.findMin().value).toEqual(obj1);
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expect(bstNode.findMin().value).toEqual(obj1);
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});
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});
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it('should abandon removed node', () => {
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const rootNode = new BinarySearchTreeNode('foo');
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rootNode.insert('bar');
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const childNode = rootNode.find('bar');
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rootNode.remove('bar');
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expect(childNode.parent).toBeNull();
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});
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});
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});
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