buckets-js
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Buckets is a complete, fully tested and documented data structure library written in pure JavaScript.
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<body>
<!-- ============================== header ================================= -->
<!-- begin static/header.html -->
<div id="header">
</div>
<!-- end static/header.html -->
<!-- ============================== classes index ============================ -->
<div id="index">
<!-- begin publish.classesIndex -->
<ul class="classList">
<li><a href="../symbols/buckets.arrays.html">buckets.arrays</a></li>
<li><a href="../symbols/buckets.Bag.html">buckets.Bag</a></li>
<li><a href="../symbols/buckets.BSTree.html">buckets.BSTree</a></li>
<li><a href="../symbols/buckets.Dictionary.html">buckets.Dictionary</a></li>
<li><a href="../symbols/buckets.Heap.html">buckets.Heap</a></li>
<li><a href="../symbols/buckets.LinkedList.html">buckets.LinkedList</a></li>
<li><a href="../symbols/buckets.MultiDictionary.html">buckets.MultiDictionary</a></li>
<li><a href="../symbols/buckets.PriorityQueue.html">buckets.PriorityQueue</a></li>
<li><a href="../symbols/buckets.Queue.html">buckets.Queue</a></li>
<li><a href="../symbols/buckets.Set.html">buckets.Set</a></li>
<li><a href="../symbols/buckets.Stack.html">buckets.Stack</a></li>
</ul>
<!-- end publish.classesIndex -->
</div>
<div id="content">
<!-- ============================== class title ============================ -->
<h1 class="classTitle">
Object buckets.BSTree
</h1>
<!-- ============================== class summary ========================== -->
<p class="description">
<p> Binary search trees keep their elements in sorted order, so that
lookup and other operations can use the principle of binary search. In a BST
the element in any node is larger than the elements in the node's
left sub-tree and smaller than the elements in the node's right sub-tree.</p>
<p>If the inserted elements are custom objects, a compare function must
be provided at construction time, otherwise the <=, === and >= operators are
used to compare elements.</p>
<p>Example:</p>
<pre>
function compare(a, b) {
if (a is less than b by some ordering criterion) {
return -1;
} if (a is greater than b by the ordering criterion) {
return 1;
}
// a must be equal to b
return 0;
}
</pre>
</p>
<!-- ============================== constructor summary ==================== -->
<table class="summaryTable" cellspacing="0" summary="A summary of the constructor documented in the class buckets.BSTree.">
<caption>Object Summary</caption>
<thead>
<tr>
<th scope="col">Constructor Name and Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="nameDescription" >
<div class="fixedFont">
<b><a href="../symbols/buckets.BSTree.html#constructor">buckets.BSTree</a></b>(compareFunction)
</div>
<div class="description">Creates an empty binary search tree.</div>
</td>
</tr>
</tbody>
</table>
<!-- ============================== properties summary ===================== -->
<!-- ============================== methods summary ======================== -->
<table class="summaryTable" cellspacing="0" summary="A summary of the methods documented in the class buckets.BSTree.">
<caption>Method Summary</caption>
<thead>
<tr>
<th scope="col">Method Name and Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="nameDescription">
<div class="fixedFont">buckets.BSTree.<b><a href="../symbols/buckets.BSTree.html#.add">add</a></b>(element)
</div>
<div class="description">Inserts the specified element into the tree if it's not already present.</div>
</td>
</tr>
<tr>
<td class="nameDescription">
<div class="fixedFont">buckets.BSTree.<b><a href="../symbols/buckets.BSTree.html#.clear">clear</a></b>()
</div>
<div class="description">Removes all the elements from the tree.</div>
</td>
</tr>
<tr>
<td class="nameDescription">
<div class="fixedFont">buckets.BSTree.<b><a href="../symbols/buckets.BSTree.html#.contains">contains</a></b>(element)
</div>
<div class="description">Returns true if the tree contains the specified element.</div>
</td>
</tr>
<tr>
<td class="nameDescription">
<div class="fixedFont">buckets.BSTree.<b><a href="../symbols/buckets.BSTree.html#.equals">equals</a></b>(other)
</div>
<div class="description">Returns true if the tree is equal to another tree.</div>
</td>
</tr>
<tr>
<td class="nameDescription">
<div class="fixedFont">buckets.BSTree.<b><a href="../symbols/buckets.BSTree.html#.forEach">forEach</a></b>(callback)
</div>
<div class="description">Executes the provided function once per element present in the tree in in-order.</div>
</td>
</tr>
<tr>
<td class="nameDescription">
<div class="fixedFont">buckets.BSTree.<b><a href="../symbols/buckets.BSTree.html#.height">height</a></b>()
</div>
<div class="description">Returns the height of the tree.</div>
</td>
</tr>
<tr>
<td class="nameDescription">
<div class="fixedFont">buckets.BSTree.<b><a href="../symbols/buckets.BSTree.html#.inorderTraversal">inorderTraversal</a></b>(callback)
</div>
<div class="description">Executes the provided function once per element present in the tree in in-order.</div>
</td>
</tr>
<tr>
<td class="nameDescription">
<div class="fixedFont">buckets.BSTree.<b><a href="../symbols/buckets.BSTree.html#.isEmpty">isEmpty</a></b>()
</div>
<div class="description">Returns true if the tree contains no elements.</div>
</td>
</tr>
<tr>
<td class="nameDescription">
<div class="fixedFont">buckets.BSTree.<b><a href="../symbols/buckets.BSTree.html#.levelTraversal">levelTraversal</a></b>(callback)
</div>
<div class="description">Executes the provided function once per element present in the tree in level-order.</div>
</td>
</tr>
<tr>
<td class="nameDescription">
<div class="fixedFont">buckets.BSTree.<b><a href="../symbols/buckets.BSTree.html#.maximum">maximum</a></b>()
</div>
<div class="description">Returns the maximum element of the tree.</div>
</td>
</tr>
<tr>
<td class="nameDescription">
<div class="fixedFont">buckets.BSTree.<b><a href="../symbols/buckets.BSTree.html#.minimum">minimum</a></b>()
</div>
<div class="description">Returns the minimum element of the tree.</div>
</td>
</tr>
<tr>
<td class="nameDescription">
<div class="fixedFont">buckets.BSTree.<b><a href="../symbols/buckets.BSTree.html#.postorderTraversal">postorderTraversal</a></b>(callback)
</div>
<div class="description">Executes the provided function once per element present in the tree in post-order.</div>
</td>
</tr>
<tr>
<td class="nameDescription">
<div class="fixedFont">buckets.BSTree.<b><a href="../symbols/buckets.BSTree.html#.preorderTraversal">preorderTraversal</a></b>(callback)
</div>
<div class="description">Executes the provided function once per element present in the tree in pre-order.</div>
</td>
</tr>
<tr>
<td class="nameDescription">
<div class="fixedFont">buckets.BSTree.<b><a href="../symbols/buckets.BSTree.html#.remove">remove</a></b>(element)
</div>
<div class="description">Removes the specified element from the tree.</div>
</td>
</tr>
<tr>
<td class="nameDescription">
<div class="fixedFont">buckets.BSTree.<b><a href="../symbols/buckets.BSTree.html#.size">size</a></b>()
</div>
<div class="description">Returns the number of elements in the tree.</div>
</td>
</tr>
<tr>
<td class="nameDescription">
<div class="fixedFont">buckets.BSTree.<b><a href="../symbols/buckets.BSTree.html#.toArray">toArray</a></b>()
</div>
<div class="description">Returns an array containing all the elements in the tree in in-order.</div>
</td>
</tr>
</tbody>
</table>
<!-- ============================== events summary ======================== -->
<!-- ============================== constructor details ==================== -->
<div class="details"><a name="constructor"> </a>
<div class="sectionTitle">
Object Detail
</div>
<div class="fixedFont">
<b>buckets.BSTree</b>(compareFunction)
</div>
<div class="description">
Creates an empty binary search tree.
</div>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{function(Object|Object):number=}</span> <b>compareFunction</b>
</dt>
<dd>Optional
function used to compare two elements. Must return a negative integer,
zero, or a positive integer as the first argument is less than, equal to,
or greater than the second.</dd>
</dl>
</div>
<!-- ============================== field details ========================== -->
<!-- ============================== method details ========================= -->
<div class="sectionTitle">
Method Detail
</div>
<a name=".add"> </a>
<div class="fixedFont"><static>
<span class="light">{boolean}</span>
<span class="light">buckets.BSTree.</span><b>add</b>(element)
</div>
<div class="description">
Inserts the specified element into the tree if it's not already present.
</div>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{Object}</span> <b>element</b>
</dt>
<dd>The element to insert.</dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dd><span class="light fixedFont">{boolean}</span> True if the tree didn't already contain the element.</dd>
</dl>
<hr />
<a name=".clear"> </a>
<div class="fixedFont"><static>
<span class="light">buckets.BSTree.</span><b>clear</b>()
</div>
<div class="description">
Removes all the elements from the tree.
</div>
<hr />
<a name=".contains"> </a>
<div class="fixedFont"><static>
<span class="light">{boolean}</span>
<span class="light">buckets.BSTree.</span><b>contains</b>(element)
</div>
<div class="description">
Returns true if the tree contains the specified element.
</div>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{Object}</span> <b>element</b>
</dt>
<dd>Element to search for.</dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dd><span class="light fixedFont">{boolean}</span> True if the tree contains the element,
false otherwise.</dd>
</dl>
<hr />
<a name=".equals"> </a>
<div class="fixedFont"><static>
<span class="light">{boolean}</span>
<span class="light">buckets.BSTree.</span><b>equals</b>(other)
</div>
<div class="description">
Returns true if the tree is equal to another tree.
Two trees are equal if they have the same elements.
</div>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{<a href="../symbols/buckets.BSTree.html">buckets.BSTree</a>}</span> <b>other</b>
</dt>
<dd>The other tree.</dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dd><span class="light fixedFont">{boolean}</span> True if the tree is equal to the given tree.</dd>
</dl>
<hr />
<a name=".forEach"> </a>
<div class="fixedFont"><static>
<span class="light">buckets.BSTree.</span><b>forEach</b>(callback)
</div>
<div class="description">
Executes the provided function once per element present in the tree in in-order.
Equivalent to inorderTraversal.
</div>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{function(Object):*}</span> <b>callback</b>
</dt>
<dd>Function to execute, it's
invoked with an element argument. To break the iteration you can
optionally return false in the callback.</dd>
</dl>
<hr />
<a name=".height"> </a>
<div class="fixedFont"><static>
<span class="light">{number}</span>
<span class="light">buckets.BSTree.</span><b>height</b>()
</div>
<div class="description">
Returns the height of the tree.
</div>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dd><span class="light fixedFont">{number}</span> The height of the tree or -1 if it's empty.</dd>
</dl>
<hr />
<a name=".inorderTraversal"> </a>
<div class="fixedFont"><static>
<span class="light">buckets.BSTree.</span><b>inorderTraversal</b>(callback)
</div>
<div class="description">
Executes the provided function once per element present in the tree in in-order.
</div>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{function(Object):*}</span> <b>callback</b>
</dt>
<dd>Function to execute, invoked with an element as
argument. To break the iteration you can optionally return false in the callback.</dd>
</dl>
<hr />
<a name=".isEmpty"> </a>
<div class="fixedFont"><static>
<span class="light">{boolean}</span>
<span class="light">buckets.BSTree.</span><b>isEmpty</b>()
</div>
<div class="description">
Returns true if the tree contains no elements.
</div>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dd><span class="light fixedFont">{boolean}</span> True if the tree contains no elements.</dd>
</dl>
<hr />
<a name=".levelTraversal"> </a>
<div class="fixedFont"><static>
<span class="light">buckets.BSTree.</span><b>levelTraversal</b>(callback)
</div>
<div class="description">
Executes the provided function once per element present in the tree in level-order.
</div>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{function(Object):*}</span> <b>callback</b>
</dt>
<dd>Function to execute, invoked with an element as
argument. To break the iteration you can optionally return false in the callback.</dd>
</dl>
<hr />
<a name=".maximum"> </a>
<div class="fixedFont"><static>
<span class="light">{*}</span>
<span class="light">buckets.BSTree.</span><b>maximum</b>()
</div>
<div class="description">
Returns the maximum element of the tree.
</div>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dd><span class="light fixedFont">{*}</span> The maximum element of the tree or undefined if the tree
is empty.</dd>
</dl>
<hr />
<a name=".minimum"> </a>
<div class="fixedFont"><static>
<span class="light">{*}</span>
<span class="light">buckets.BSTree.</span><b>minimum</b>()
</div>
<div class="description">
Returns the minimum element of the tree.
</div>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dd><span class="light fixedFont">{*}</span> The minimum element of the tree or undefined if the tree
is empty.</dd>
</dl>
<hr />
<a name=".postorderTraversal"> </a>
<div class="fixedFont"><static>
<span class="light">buckets.BSTree.</span><b>postorderTraversal</b>(callback)
</div>
<div class="description">
Executes the provided function once per element present in the tree in post-order.
</div>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{function(Object):*}</span> <b>callback</b>
</dt>
<dd>Function to execute, invoked with an element as
argument. To break the iteration you can optionally return false in the callback.</dd>
</dl>
<hr />
<a name=".preorderTraversal"> </a>
<div class="fixedFont"><static>
<span class="light">buckets.BSTree.</span><b>preorderTraversal</b>(callback)
</div>
<div class="description">
Executes the provided function once per element present in the tree in pre-order.
</div>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{function(Object):*}</span> <b>callback</b>
</dt>
<dd>Function to execute, invoked with an element as
argument. To break the iteration you can optionally return false in the callback.</dd>
</dl>
<hr />
<a name=".remove"> </a>
<div class="fixedFont"><static>
<span class="light">{boolean}</span>
<span class="light">buckets.BSTree.</span><b>remove</b>(element)
</div>
<div class="description">
Removes the specified element from the tree.
</div>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<b>element</b>
</dt>
<dd></dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dd><span class="light fixedFont">{boolean}</span> True if the tree contained the specified element.</dd>
</dl>
<hr />
<a name=".size"> </a>
<div class="fixedFont"><static>
<span class="light">{number}</span>
<span class="light">buckets.BSTree.</span><b>size</b>()
</div>
<div class="description">
Returns the number of elements in the tree.
</div>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dd><span class="light fixedFont">{number}</span> The number of elements in the tree.</dd>
</dl>
<hr />
<a name=".toArray"> </a>
<div class="fixedFont"><static>
<span class="light">{Array}</span>
<span class="light">buckets.BSTree.</span><b>toArray</b>()
</div>
<div class="description">
Returns an array containing all the elements in the tree in in-order.
</div>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dd><span class="light fixedFont">{Array}</span> An array containing all the elements in the tree in in-order.</dd>
</dl>
<!-- ============================== event details ========================= -->
<hr />
</div>
</body>
</html>