JS update the value of the filtered object using array.filter

Question

So I need to perform two actions 1) filter my array and 2) update the unfiltered values. currently, I am doing it this way and it works fine.

let installData = state.installData.filter((item) => {
        return item.sensor !== action.data.sensor;
      });

      installData = installData.map((item) => {
        return { ...item, asOfDate: false };
      });

however, I am doing operations here and was wondering if there is a more efficient way to update the value of my item directly inside the filtred method without having to use map

Your operations seem fine, though you could chain them to avoid reassigning installData. const installData = state.installData.filter((item) => ...).map((item) => ...); — pilchard
– pilchard, Commented May 17, 2022 at 21:09

Kinglish · Accepted Answer · 2022-05-17 21:14:12Z

1

I believe you could just use reduce and combine operations into a single function

 let installData = state.installData.reduce((acc,item) => {
     if (item.sensor !== action.data.sensor) acc.push({...item, asOfDate: false});
     return acc;
  },[]);

edited May 17, 2022 at 21:14

answered May 17, 2022 at 20:59

Kinglish

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