jimu layerStructure and layer.hide()/layer.show() - Calls to ArcGIS Server

Arne_Gelfert

Working in the world of custom WAB development using JSAPI 3.x, and looking at some performance tweaks.

Notice that when I use the following approach to update multiple layers' visibility, it takes a long time to update the map...

layerStructure<SPAN class="punctuation token">.</SPAN><SPAN class="token function">traversal</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">function</SPAN><SPAN class="punctuation token">(</SPAN>layerNode<SPAN class="punctuation token">)</SPAN> <SPAN class="punctuation token">{</SPAN>
<SPAN class="comment token">//...</SPAN>
   layerNode<SPAN class="punctuation token">.</SPAN><SPAN class="token function">hide</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN>
<SPAN class="comment token">//or</SPAN>
   layerNode<SPAN class="punctuation token">.</SPAN><SPAN class="token function">show</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN>
<SPAN class="comment token">//...</SPAN>
<SPAN class="punctuation token">}</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>