27 lines
702 B
JavaScript
27 lines
702 B
JavaScript
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// https://www.freecodecamp.org/learn/coding-interview-prep/data-structures/check-if-an-element-is-present-in-a-binary-search-tree
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var displayTree = (tree) => console.log(JSON.stringify(tree, null, 2));
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function Node(value) {
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this.value = value;
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this.left = null;
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this.right = null;
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}
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function BinarySearchTree() {
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this.root = null;
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// Only change code below this line
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this.isPresent = (item) => {
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let node = this.root;
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while (node !== null) {
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if (node.value === item) {
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return true;
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} else if (node.value < item) {
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node = node.right;
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} else {
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node = node.left;
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}
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}
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return false;
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};
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// Only change code above this line
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}
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