how to iterate over a shapefile in node.js -

i have following node.js code reads shapefile based on code (https://github.com/mbostock/shapefile)

var shp=require('shapefile'); var path="polygons.shp" var encoding="utf8"  function readrecords(path, encoding) {   return function() {   var callback = this.callback;   shp.read(path, encoding, function(error, header, records) {   callback(error, records); });   }; };  var rs = readrecords(path,encoding) console.log(rs) 

when execute above code : undefined

any idea of how iterate on such object?

you need read header before move reading records. bit of code logs entire shapefile console:

var shapefile  = require( 'shapefile' ),     reader = shapefile.reader( 'polygons' );  var logger = function( error, record ) {   console.log( record );   if( record !== shapefile.end ) reader.readrecord( logger ); }  reader.readheader( logger );