After combining two files in browserify, the error message "XXX.foo is not a function" appeared

When using browserify to bundle two JavaScipt files into one with the command:

browserify X1.js X2.js --standalone XXX > bundle.js

The file X1.js contains a function like this:

function foo() {
   console.log("something")
}

And it is being exported in this way:

module.exports = {foo: foo};

The intention is to call that function inside the index.html like so:

XXX.foo()

However, it appears that the module "XXX" is recognized but not the function "foo". Why might this be happening?

Uncaught TypeError: XXX.foo is not a function

Answer №1

Don't overlook the importance of using single quotes around 'foo':

module.exports = {'foo': foo};

This way, you can easily call the foo function as intended:

XXX.foo();

If not, an alternative approach would be:

exports.foo = foo;

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