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  1. MongoDB Shell
  2. MONGOSH-711

Support Date.timeFunc() from old shell?

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    • Type: Icon: Task Task
    • Resolution: Fixed
    • Priority: Icon: Major - P3 Major - P3
    • 0.15.0
    • Affects Version/s: 0.12.0
    • Component/s: Shell API
    • None
    • Needed
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      Not sure if we need docs specifically for this or if it will be already covered in the docs for snippets. I think it's worth pointing out somewhere in the docs that while some helpers/methods and the additions to the JS native types are not available by default in mongosh and users should rather use cleaner options that are availabe in JS/Node, they can still install a backwards compatibility snippet with the shell command snippet install mongocompat.

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      Not sure if we need docs specifically for this or if it will be already covered in the docs for snippets. I think it's worth pointing out somewhere in the docs that while some helpers/methods and the additions to the JS native types are not available by default in mongosh and users should rather use cleaner options that are availabe in JS/Node, they can still install a backwards compatibility snippet with the shell command snippet install mongocompat .

      Problem Description

      I was testing out my .mongorc.js for the first time in the 0.12.0 version and I noticed we don’t support Date.timeFunc() yet. Is that something we might consider?

      See: https://github.com/mongodb/mongo/blob/master/src/mongo/shell/types.js#L28

      I use it to do very quick perf testing in the shell, e.g.,

      function avgTime(func, runs) {
    a = [];
    runs = runs || 10;    for (var i=0; i<runs; i++) {
        a.push(Date.timeFunc(func))
    }    out = { avg: Array.avg(a), stdDev: Array.stdDev(a) };
    out.sampStdDev = Math.sqrt((1/(runs-1)) * (out.stdDev*out.stdDev));
    return out;
}

avgTime(function() {db.zips.aggregate({$group:{_id: '$state', count: $sum:'$pop'}}})}, 30)

      Steps to Reproduce

      Expected Results

      Actual Results

      Additional Notes

        1. screenshot-1.png
          34 kB
          Massimiliano Marcon
        2. Screenshot from 2021-04-23 18-24-33.png
          99 kB
          Anna Henningsen

            Assignee:
            Unassigned Unassigned
            Reporter:
            dan@mongodb.com Daniel Pasette (Inactive)
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              Created:
              Updated:
              Resolved: