change harmony exports for doing something else, using Webpack for build












0















The following is the simplifed code. I now have two file functioning like these



// utils.js
export {
$fetch,
// other utils
}


// index.js
import(a.js)


// a.js
import { $fetch } from 'utils'
$fetch()
.then(() => {
// do something
})


I now want to intercept the $fetch method to do something else, so i try this.



// index.js
import(b.js)
import(a.js)


// b.js
import * as Utils from 'utils'
let _fetch = $fetch
Utils.$fetch = () => {
// do something else

return _$fetch()
}


but it failed.



failed description



I know the reason, but I don't know how to solve this to meet my need.



webpack manifest section



I searched , but find nothing useful, so far.
also this Mock named exports for testing using Jest



thx for help.










share|improve this question



























    0















    The following is the simplifed code. I now have two file functioning like these



    // utils.js
    export {
    $fetch,
    // other utils
    }


    // index.js
    import(a.js)


    // a.js
    import { $fetch } from 'utils'
    $fetch()
    .then(() => {
    // do something
    })


    I now want to intercept the $fetch method to do something else, so i try this.



    // index.js
    import(b.js)
    import(a.js)


    // b.js
    import * as Utils from 'utils'
    let _fetch = $fetch
    Utils.$fetch = () => {
    // do something else

    return _$fetch()
    }


    but it failed.



    failed description



    I know the reason, but I don't know how to solve this to meet my need.



    webpack manifest section



    I searched , but find nothing useful, so far.
    also this Mock named exports for testing using Jest



    thx for help.










    share|improve this question

























      0












      0








      0








      The following is the simplifed code. I now have two file functioning like these



      // utils.js
      export {
      $fetch,
      // other utils
      }


      // index.js
      import(a.js)


      // a.js
      import { $fetch } from 'utils'
      $fetch()
      .then(() => {
      // do something
      })


      I now want to intercept the $fetch method to do something else, so i try this.



      // index.js
      import(b.js)
      import(a.js)


      // b.js
      import * as Utils from 'utils'
      let _fetch = $fetch
      Utils.$fetch = () => {
      // do something else

      return _$fetch()
      }


      but it failed.



      failed description



      I know the reason, but I don't know how to solve this to meet my need.



      webpack manifest section



      I searched , but find nothing useful, so far.
      also this Mock named exports for testing using Jest



      thx for help.










      share|improve this question














      The following is the simplifed code. I now have two file functioning like these



      // utils.js
      export {
      $fetch,
      // other utils
      }


      // index.js
      import(a.js)


      // a.js
      import { $fetch } from 'utils'
      $fetch()
      .then(() => {
      // do something
      })


      I now want to intercept the $fetch method to do something else, so i try this.



      // index.js
      import(b.js)
      import(a.js)


      // b.js
      import * as Utils from 'utils'
      let _fetch = $fetch
      Utils.$fetch = () => {
      // do something else

      return _$fetch()
      }


      but it failed.



      failed description



      I know the reason, but I don't know how to solve this to meet my need.



      webpack manifest section



      I searched , but find nothing useful, so far.
      also this Mock named exports for testing using Jest



      thx for help.







      webpack






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 25 '18 at 10:27









      Gu JunminGu Junmin

      163




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