NodeJS - String to array set

Question

I have a string set of -

"uid:ID1,name:Name1,uid:ID2,name:Name2"

I want to map "uid:ID1,name:Name1" into

The following format

{
uid :'ID1',
name: "Name1"
}

But for it to make as many property sets as are passed in via the string set.

So for the input string with "2 sets" I need it to make this following output.

        {
            uid :'ID1',
            name: "Name1"
        },
        {
            uid :'ID2',
            name: "Name2"
        }

What can I try?

Nino Filiu · Accepted Answer · 2019-07-14 14:32:55Z

1

Use the main function below:

const main = str => {
  // split on each comma
  const arr = str.split(',');
  // put back elements by pairs
  const pairs = [];
  for (let i=0; i<arr.length; i+=2) {
    let o = {};
    o.uid = arr[i].split(':')[1];
    o.name = arr[i+1].split(':')[1];
    pairs.push(o);
  }
  return pairs;
}

console.log(main('uid:ID1,name:Name1'));
console.log(main('uid:ID1,name:Name1,uid:ID2,name:Name2'));

This assumes that the input string is well-formed as a repetition of uid:...,name:... (no arbitrary key, no optional key) joined by ,.

edited Jul 14, 2019 at 14:32

answered Jul 14, 2019 at 11:49

Nino Filiu

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Comments

karpada · Accepted Answer · 2019-07-20 15:22:36Z

0

Assuming that you want Objects and the keys are arbitrary...

console.log(
  "uid:ID1,name:Name1,uid:ID2,name:Name2"
  .split(/[,:]/)
  .reduce((res, val, i, arr) => {
    if (i % 4 === 0) {
      res.push({})
    }
    if (i % 2) {
      res[res.length - 1][arr[i - 1]] = arr[i]
    }
    return res
  }, [])
);

edited Jul 20, 2019 at 15:22

answered Jul 14, 2019 at 12:30

karpada

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