plot - Basic 2D plotting in javascript? -

i'm getting stream of info via chrome app , want basic api plot it. literally simplest thing beginner ideal (new javascript). looking basic help picking right tools before invest much time learning them.

i've discovered d3.js , simplify.js.

check out http://www.flotcharts.org/ used when beginner javascript, , pretty easy start off with. can take way many steps further, end of day need simple arrays x , y values