Ethan Hu e-hu

My interests focus on AdTech / Computational Advertising, Machine Learning, Data Mining, Recommender System.

e-hu / Bitmap.js

Created January 25, 2019 05:04 — forked from binarymax/Bitmap.js

Javascript bitmap data structure

	//------------------------------------------
	//Compact bitmap datastructure
	//Memory efficient array of bool flags
	var Bitmap = function(size){
	this._cols = 8;
	this._shift = 3;
	this._rows = (size>>this._shift)+1;
	this._buf = new ArrayBuffer(this._rows);
	this._bin = new Uint8Array(this._buf);
	};