在nodejs中找不到zepto模块

Question

I am a newbie with nodejs.

I installed globally modules zepto and jsdom :

npm install jsdom -g
npm install zepto -g

I checked with npm list -g . These modules are installed.

But when I reference these two modules in a script using require:

var jsdom = require("jsdom");
var Zepto = require("zepto");

I got an error message :

Error: Cannot find module 'zepto'
at Function.Module._resolveFilename (module.js:338:15)
at Function.Module._load (module.js:280:25)
at Module.require (module.js:364:17)
at require (module.js:380:17)
at Object.<anonymous> (/home/user554/dev/exchange/bin/getExchangeData.js:6:13)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)

I tried with only jsdom and only zepto. Only Zepto fails.

What am I missing ? Thank you for your help.

Answer 1

The zepto package is not a proper Node package. It installs a minified version of the Zepto lib, but it looks like it's meant for browser usage (why would it be in the NPM repository? I have no idea).

Instead, try the zepto-node package.

Answer 2

The real problem here is that you're installing globally . Installing with -g is meant only for modules that provide some kind of command-line scripts (eg express-generator provides the express command that you can use from your shell prompt).

Generally you install the module without -g and it will get installed locally and you can require() it just fine. However, as pointed out by @robertklep, the zepto module currently does not export anything (missing "lib" in package.json), so installing locally would not help for that particular module.