Lambertjs is a wrapper to the lambert C library.
npm install lambertjs
var lambert = require('lambertjs');
var lambertLoc = {
x: 994272.661,
y: 13467.422,
z: 0
}
/**
* Zone argument could be one of the followings :
* LambertI, LambertII, LambertIII, LambertIV, LambertIIExtended, Lambert93
*/
var wsg84Loc = lambert.lambertTowgs84Deg(lambertLoc,lambert.LambertI);#License Copyright (c) 2013 Yannick Heinrich - Released under the GPLv2 License.