Barebones object for throttling function calls (preventing them from being called too often)

throttle.js

// -----------------------------------
// barebones example of how to throttle a function 
// so it doesn't fire too frequently

var THROTTLE = function(){
    this.wait = 200;
}

// execute f in this.wait milliseconds. if there's already an f waiting to be called,
// drop it and replace it with this f
THROTTLE.prototype.go = function(f){
    clearTimeout(this.timeout);
    this.timeout = setTimeout(f, this.wait);
    return this;
}

// -----------------------------------
// example usage:

// ...

this.throttle = new THROTTLE();

// ...
var that = this;
d3.select(window).on("resize",
                     function(){
  that.throttle.go(function(){
    that.draw.call(that);
  });
});
// ...