javascript - Export a class in Node module.exports = {} - Stack Overflow

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I want to export a class with static methods in a module, along with other functions. I'm trying to do

module.exports = {
  fun: function(){},
  class: MyClass
}
class MyClass {
  static get prop() {
    return 'property';
  }
}

But it does not work. Is there a way to export class as part of module.exports object?

I want to export a class with static methods in a module, along with other functions. I'm trying to do

module.exports = {
  fun: function(){},
  class: MyClass
}
class MyClass {
  static get prop() {
    return 'property';
  }
}

But it does not work. Is there a way to export class as part of module.exports object?

• javascript
• node.js
• ecmascript-6

Share Improve this question Follow edited Mar 2, 2016 at 10:33 Anton asked Mar 2, 2016 at 10:10 AntonAnton 4511 silver badge99 bronze badges 5

• I'm using not class but say abc and it's not working -- the error is that abc is not defined when I try to require it from other file. I can do module.exports.abc = MyClass, but that would not allow me to use just MyClass inside the module – Anton Commented Mar 2, 2016 at 10:19
• I see myClass and not MyClass in your exports definition – Backslash36 Commented Mar 2, 2016 at 10:20
• Why don't you use ES6 module exports? export class MyClass {} export function fun() {} – Bergi Commented Mar 2, 2016 at 10:42
• @Bergi: ES6 module imports can only be on the top of the file. Sometimes it's necessary to conditional import a module. This is not possible then. – andreas Commented Jul 8, 2017 at 17:11
• @andreas It will be possible with import() statements, and until then you can still just require the transpiled module – Bergi Commented Jul 8, 2017 at 18:25

Add a ment  | 

1 Answer 1

Sorted by: Reset to default 5

Class definitions aren't hoisted, which means that your class won't be in scope when you declare those exports. Move them down to below the definition.

class MyClass {
  static get prop() {
    return 'property';
  }
}
module.exports = {
  fun: function(){},
  class: myClass
}

You'll also need to fix the case on the variable you export.

module.exports = {
  fun: function(){},
  class: MyClass
}

Depending on your Javascript environment, there may be pile time errors if you try and used the reserved word class as a literal object property. You can wrap it in a string to avoid this.

module.exports = {
  fun: function(){},
  "class": MyClass
}

I want to export a class with static methods in a module, along with other functions. I'm trying to do

module.exports = {
  fun: function(){},
  class: MyClass
}
class MyClass {
  static get prop() {
    return 'property';
  }
}

But it does not work. Is there a way to export class as part of module.exports object?

I want to export a class with static methods in a module, along with other functions. I'm trying to do

module.exports = {
  fun: function(){},
  class: MyClass
}
class MyClass {
  static get prop() {
    return 'property';
  }
}

But it does not work. Is there a way to export class as part of module.exports object?

• javascript
• node.js
• ecmascript-6

Share Improve this question Follow edited Mar 2, 2016 at 10:33 Anton asked Mar 2, 2016 at 10:10 AntonAnton 4511 silver badge99 bronze badges 5

• I'm using not class but say abc and it's not working -- the error is that abc is not defined when I try to require it from other file. I can do module.exports.abc = MyClass, but that would not allow me to use just MyClass inside the module – Anton Commented Mar 2, 2016 at 10:19
• I see myClass and not MyClass in your exports definition – Backslash36 Commented Mar 2, 2016 at 10:20
• Why don't you use ES6 module exports? export class MyClass {} export function fun() {} – Bergi Commented Mar 2, 2016 at 10:42
• @Bergi: ES6 module imports can only be on the top of the file. Sometimes it's necessary to conditional import a module. This is not possible then. – andreas Commented Jul 8, 2017 at 17:11
• @andreas It will be possible with import() statements, and until then you can still just require the transpiled module – Bergi Commented Jul 8, 2017 at 18:25

Add a ment  | 

1 Answer 1

Sorted by: Reset to default 5

Class definitions aren't hoisted, which means that your class won't be in scope when you declare those exports. Move them down to below the definition.

class MyClass {
  static get prop() {
    return 'property';
  }
}
module.exports = {
  fun: function(){},
  class: myClass
}

You'll also need to fix the case on the variable you export.

module.exports = {
  fun: function(){},
  class: MyClass
}

Depending on your Javascript environment, there may be pile time errors if you try and used the reserved word class as a literal object property. You can wrap it in a string to avoid this.

module.exports = {
  fun: function(){},
  "class": MyClass
}

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