This is a Node.js library for reading, modifying and creating .LAS LIDAR files. It is a binding to native LibLAS tool (http://www.liblas.org/)
var liblas = require("liblas")
console.log(liblas.getVersion());
console.log(liblas.getFullVersion());
liblas.open('./test/1.2c.las', null, 'r');
var p = liblas.read(0);
console.log(p);
liblas.close();