proj4 is not a function

[iceteabottle]

Hi,
I've been trying to use this tool within an angular app (v. 4) and I get this error when I try call toWGS():
ERROR TypeError: proj4 is not a function

When I change the proj4 function call (index.js:23) to proj4.default() it works.

[derhuerst]

Please provide a minimal code snippet that reproduces the error.

[AndyWoerner]

hi,
ive the same problem with the toGK function.
Line61: to proj4.default() it works as well.

[derhuerst]

@juliuste

With proj4@^2.4.4 (which currently is proj4@2.7.0), proj4.default is not a function.

gauss-krueger/index.js

Line 23 in dfb0954

const projected = proj4.default(epsg[epsgFromZone(zone)], 'WGS84', Object.assign({}, coordinates))

[FloEdelmann]

It probably depends on the bundler and its configuration. This could be mitigated by something like:

let proj4 = require('proj4');

if (typeof proj4 !== 'function') {
  proj4 = proj4.default;
}

const projected = proj4(…);