optimization - Nested (Condition) ? true:false statements in JavaScript -

in following code snippet,

var paintmode = data.hasownproperty('regions') ?         'regions' : data.hasownproperty('vpcs') ?         'vpcs' : data.hasownproperty('zones') ?          'zones' : data.hasownproperty('subnets') ?          'subnets' : data.hasownproperty('clusters') ? 'clusters' : null; 

i've used nested (condition) ? true : false -- acceptable? optimized? if bad there alternative?

it used inside recursive function few svg operations, here's function snippet if curious.

function paintgroups(data) {     var paintmode = data.hasownproperty('regions') ? 'regions' : data.hasownproperty('vpcs') ? 'vpcs' : data.hasownproperty('zones') ? 'zones' : data.hasownproperty('subnets') ? 'subnets' : data.hasownproperty('clusters') ? 'clusters' : null,         depth = data[paintmode].length,         i,         shape; //= raphealobj.rect();      // register stacking order     // paint shape styles based on paintmode     // store id & label other ops.      if(paintmode) {         for(i = 0; < depth; i++) {             paintgroups(data[paintmode][i]);         }     }      // reverse order of paint - place statements here } 

generally speaking using binary operations should faster conditional statements branching because of branch prediction, caching, yada yada yada. code fine. && || it's preference , not based on empirical.

var data = {a: 1, b: 2, c: 3}; var result = data.x ||      data.y && "y" ||      data.z && "z" ||      data.w && "w" ||     null; 

i didn't feel typing .hasownproperty.

edit after looking @ code

var paintmode = data.regions || data.vpcs || data.zones || data.subnets || data.clusters || null; if(paintnode) {     for(var i=0; i<paintmode.length; i++)         paintgroups(paintmode[i]); }