javascript - Approach to flexibly access encapsulated data objects / how to analyse performance? -


today thought of highly flexible way access data-sets, encapsulated using closures.

i'm still writing webgl stuff, resulting example related (coordinates / rotation state). nevertheless it's transferable other contexts. please have @ this:

function randomobject(x, y, z){     var rotx = 0;     var roty = 0;     var rotz = 0;      this.data = {         "position" : {             set: function(position){x = position[0]; y = position[1]; z = position[2];},             get: function(){return {"x": x, "y" : y, "z" : z};},             x: function(value){return value? (x = value) :  x;},             y: function(value){return value? (y = value) :  y;},             z: function(value){return value? (z = value) :  z;},             readonly: true         },         "rotation" : {             set: function(rotation){x = rotation[0]; y = rotation[1]; z = rotation[2];},             get: function(){return {"x": rotx, "y" : roty, "z" : rotz};},             x: function(value){return value? (rotx = value) : rotx;},             y: function(value){return value? (roty = value) : roty;},             z: function(value){return value? (rotz = value) : rotz;},             readonly: false         }     }; }

my purpose access data of objects generated constructor this:

var set = "position"; var coordinate = "z"; object.data[set][coordinate](5);

the readonly thing checking if users should able modify values. , yes, refactor return value? (x = value) : x; lines, thought it's more readable without function.

first question: did find go wrong when using this?

second question: know better approaches handle such situation?

third question: performance, require way more ressources compared normal standard getters / setters? have idea how benchmark this?

thanks reading , suggestions.

to clarify that: don't want write worlds fastest javascript appication, don't want memory leaks troubles show up, when instance .. let's 200-300 of objects.


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