Question 230162 in Javascript Question posted in
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Javascript – I try to use Ramda for deleted the files with file deleted=null

From a mongo collection I have a deleted field, this field is null or has a date, I am trying to get only the documents whose deleted is with date, or in other words, to eliminate those whose deleted: null, for this I am using ramda but it only returns all the documents.

 , deletedFilesList () {
  return reject(equals(null))(this.rows);
}

Any idea??

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2

Answers


  1. 0

    For a Ramda approach, you’ll need a predicate that looks at a given prop:

    return filter(propSatisfies(is(String), 'deleted'))(this.rows);
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  2. 0

    Reject all items which their deleted prop is equal to null:

    const { reject, propEq } = R

const fn = reject(propEq(null, 'deleted'))

const rows = [{ id: 1, deleted: null }, { id: 2, deleted: Date.now() }, { id: 3, deleted: null }];

const result = fn(rows)

console.log(result)
    <script src="https://cdnjs.cloudflare.com/ajax/libs/ramda/0.29.0/ramda.min.js" integrity="sha512-5x/n+aOg68Z+O/mq3LW2pC2CvEBSgLl5aLlOJa87AlYM1K8b8qsZ7NTHLe3Hu56aS2W0rgEgVCFA3RM12IXAGw==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
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