"chapter" data-level="23.1" data-path="overview-of-map-reduce.html"><a href="overview-of-map-reduce.html"><i class="fa fa-check"></i><b>23.1</b> Overview of Map-Reduce</a></li>
<li class="chapter" data-level="23.2" data-path="map-function.html"><a href="map-function.html"><i class="fa fa-check"></i><b>23.2</b> Map Function</a>
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<li class="chapter" data-level="" data-path="map-function.html"><a href="map-function.html#map-function-signature"><i class="fa fa-check"></i>Map Function Signature</a></li>
<li 