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Node.js: Loading module as if in a browser

See original GitHub issue

When I try to require('@zxing/library') in Node.js it fails with the following error:

/Users/mattmahn/code/ms-barcodes/node_modules/@zxing/library/umd/index.min.js:1
(function (exports, require, module, __filename, __dirname) { !function(t,e){"object"==typeof exports&&"object"==typeof module?module.exports=e():"function"==typeof define&&define.amd?define("ZXing",[],e):"object"==typeof exports?exports.ZXing=e():t.ZXing=e()}(window,function(){return function(t){var e={};function r(n){if(e[n])return e[n].exports;var o=e[n]={i:n,l:!1,exports:{}};return t[n].call(o.exports,o,o.exports,r),o.l=!0,o.exports}return r.m=t,r.c=e,r.d=function(t,e,n){r.o(t,e)||Object.defineProperty(t,e,{enumerable:!0,get:n})},r.r=function(t){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(t,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(t,"__esModule",{value:!0})},r.t=function(t,e){if(1&e&&(t=r(t)),8&e)return t;if(4&e&&"object"==typeof t&&t&&t.__esModule)return t;var n=Object.create(null);if(r.r(n),Object.defineProperty(n,"default",{enumerable:!0,value:t}),2&e&&"st

ReferenceError: window is not defined
    at Object.<anonymous> (/Users/mattmahn/code/ms-barcodes/node_modules/@zxing/library/umd/index.min.js:1:262)
    at Module._compile (internal/modules/cjs/loader.js:689:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:700:10)
    at Module.load (internal/modules/cjs/loader.js:599:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:538:12)
    at Function.Module._load (internal/modules/cjs/loader.js:530:3)
    at Module.require (internal/modules/cjs/loader.js:637:17)
    at require (internal/modules/cjs/helpers.js:22:18)
    at Object.<anonymous> (/Users/mattmahn/code/ms-barcodes/f.js:1:63)
    at Module._compile (internal/modules/cjs/loader.js:689:30)

Node.js version: v10.15.0 zxing-js/library version: 0.11.0

Issue Analytics

State:
Created 5 years ago
Comments:7 (4 by maintainers)

Top GitHub Comments

1reaction

mattmahncommented, Jan 30, 2019

That new import path works great, thanks! I guess the example in the README is out-of-date.

You’re right, the other dependencies are from others in listed in my package.json.

1reaction

mattmahncommented, Jan 29, 2019

I used rm -r node_modules/@zxing && sync npm install @zxing/library@0.10.0 && sync & node f.js to test each version, where f.js is:

require('@zxing/library')

In v0.9.0 & v0.6.0, Node.js couldn’t find the module:

internal/modules/cjs/loader.js:583
    throw err;
    ^

Error: Cannot find module '@zxing/library'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:581:15)
    at Function.Module._load (internal/modules/cjs/loader.js:507:25)
    at Module.require (internal/modules/cjs/loader.js:637:17)
    at require (internal/modules/cjs/helpers.js:22:18)
    at Object.<anonymous> (/Users/mah7788/code/ms-barcodes/f.js:1:63)
    at Module._compile (internal/modules/cjs/loader.js:689:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:700:10)
    at Module.load (internal/modules/cjs/loader.js:599:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:538:12)
    at Function.Module._load (internal/modules/cjs/loader.js:530:3)

v0.5.1 is the most recent version that works. I also noticed that v0.5.1 is the first to have many (76) other dependencies in node_modules/.

Edit: Looking at git diff v0.5.1..v0.10.0 -- *webpack*, it seems that the libraryTarget: 'umd' did not change… 😕