Declare multiple module exports in Node js

Question

What I m trying to achieve is to create one module that contains multiple functions in it   module js   module exports   function firstParam    console log  You did it       module exports   function secondParam    console log  Yes you did it           This may contain more functions   main js   var foo   require  module js   firstParam   var bar   require  module js   secondParam     The problem I have is that the firstParam is an object type and the secondParam is a URL string  but when I have that it always complains that the type is wrong   How can I declare multiple module exports in this case

User · Answer

use this    function       var exports   module exports         exports yourMethod    function  success             exports yourMethod2    function  success

User · Answer

There are multiple ways to do this  one way is mentioned below  Just assume you have  js file like this   let add   function  a  b       console log a   b       let sub   function  a  b       console log a - b        You can export these functions using the following code snippet    module exports add   add   module exports sub   sub    And you can use the exported functions using this code snippet   var add   require    counter   add  var sub   require    counter   sub   add 1 2   sub 1 2     I know this is a late reply  but hope this helps

User · Answer

If you declare a class in module file instead of the simple object   File  UserModule js    User Module     class User     constructor          enter code here       create params         enter code here       class UserInfo     constructor          enter code here       getUser userId         enter code here     return user            export multi module exports    User  UserInfo     Main File  index js     import module like const   User  UserInfo     require    path to UserModule    User create params   UserInfo getUser userId

User · Answer

also you can export it like this   const func1   function    some code here  const func2   function    some code here  exports func1   func1  exports func2   func2    or  for anonymous functions like this      const func1       gt  some code here      const func2       gt  some code here      exports func1   func1      exports func2   func2

User · Answer

module1 js    var myFunctions          myfunc1 function               myfunc2 function               myfunc3 function             module exports myFunctions    main js  var myModule   require    module1    myModule myfunc1      calling myfunc1 from module myModule myfunc2      calling myfunc2 from module myModule myfunc3      calling myfunc3 from module

User · Answer

Two types module import and export   type 1  module js       module like a webpack config const development                 const production                     export multi module exports    development  production      export single    module exports   development    type 1  main js       import module like a webpack config const   development  production     require    path to module      type 2  module js       module function no param const module1        gt                   module function with param const module2    param1  param2    gt                    export module module exports       module1    module2     type 2  main js       import module function const   module1  module2     require    path to module      How to use import module   const importModule          development          production          module1       module2  param1    param2

User · Answer

If the files are written using ES6 export  you can write   module exports          require    foo         require    bar

User · Answer

module js   const foo   function  lt params gt           const bar   function  lt params gt               export modules module exports         foo      bar      main js      import modules var   foo  bar     require  module        pass your parameters var f1   foo  lt params gt    var f2   bar  lt params gt

User · Answer

module exports    function           use strict        var foo   function              return               public method  function                              var bar   function              return               public method  function                              return           module a  foo          module b  bar

User · Answer

in addition to  mash answer I recommend you to always do the following   const method        gt          your method logic    const otherMethod        gt          your method logic     module exports         method       otherMethod         anotherMethod      Note here    You can call method from otherMethod and you will need this a lot You can quickly hide a method as private when you need  This is easier for most IDE s to understand and autocomplete your code     You can also use the same technique for import    const  otherMethod    require    myModule js

User · Answer

Adding here for someone to help    this code block will help adding multiple plugins into cypress index js Plugins -  cypress-ntlm-auth and cypress env file selection  const ntlmAuth   require  cypress-ntlm-auth dist plugin    const fs   require  fs-extra    const path   require  path     const getConfigurationByFile   async  config    gt      const file   config env configFile     dev     const pathToConfigFile   path resolve          Cypress cypress         config          file  json         console log  pathToConfigFile    pathToConfigFile     return fs readJson pathToConfigFile       module exports   async  on  config    gt      config   await getConfigurationByFile config     await ntlmAuth initNtlmAuth config     return config

User · Answer

This is just for my reference as what I was trying to achieve can be accomplished by this   In the module js  We can do something like this      module exports   function   firstArg  secondArg          function firstFunction                  function secondFunction                  function thirdFunction                    return   firstFunction  firstFunction  secondFunction  secondFunction   thirdFunction  thirdFunction             In the main js  var name   require  module   firstArg  secondArg

User · Answer

You can do something like   module exports         method  function           otherMethod  function            Or just   exports method   function       exports otherMethod   function         Then in the calling script    const myModule   require    myModule js    const method   myModule method  const otherMethod   myModule otherMethod     OR  const  method  otherMethod    require    myModule js

User · Answer

You can write a function that manually delegates between the other functions   module exports   function arg        if arg instanceof String             return doStringThing apply this  arguments        else           return doObjectThing apply this  arguments

User · Answer

You can use this approach too  module exports func1       module exports func2         or  exports func1       exports func2

User · Answer

To export multiple functions you can just list them like this   module exports        function1     function2     function3     And then to access them in another file   var myFunctions   require    lib file js     And then you can call each function by calling   myFunctions function1 myFunctions function2 myFunctions function3

User · Answer

One way that you can do it is creating a new object in the module instead of replacing it   for example   var testone   function          console log  test one       var testTwo   function          console log  test two       module exports testOne   testOne  module exports testTwo   testTwo    and to call  var test   require  path to file   testOne  testOne

[node.js] Declare multiple module.exports in Node.js

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