replace first element of nested arrays javascript

Question

I have an array of objects of arrays... for example:

x=[{index:0, data:[{ab: 'c', props: {cde:{efg:'asdf'}, children:"important text" }},"0",34]},
   {index:1, data:[{ab: 'd', props: {cde:{efg:'jkl;'}, children:"some more text" }},"0",35]}]

I want to transform what is in data[0] to be what is in data [0].props.children for each element in data.

data[*]['data'][0].props.children

is there a way to replace what is in data[]['data'][0] with the text in data[]['data'][0].props.children.

so the above example would become:

x=[{index:0, data:["important text","0",34]},
   {index:1, data:["some more text","0",35]}]

I hope this makes sense.

Thanks!

Art Bauer · Accepted Answer · 2022-09-01 19:16:11Z

1

You could just use map:

x = x.map(it => ({
    index: it.index, 
    data: [it.data[0].props.children, it.data[1], it.data[2]]
}));

answered Sep 1, 2022 at 19:16

Art Bauer

4892 silver badges5 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

k.tten · Accepted Answer · 2022-09-01 19:12:34Z

0

For each thing in x, we want to set data[0] to data[0].props.children:

const x=[{index:0, data:[{ab: 'c', props: {cde:{efg:'asdf'}, children:"important text" }},"0",34]},
   {index:1, data:[{ab: 'd', props: {cde:{efg:'jkl;'}, children:"some more text" }},"0",35]}];

x.forEach((thing) => {
    thing.data[0] = thing.data[0].props.children;
});

console.log(x);

This can be achieved with a regular for loop as well:

for (const thing of x) {
    // ....
}

answered Sep 1, 2022 at 19:12

k.tten

26.8k4 gold badges34 silver badges63 bronze badges

Comments

krishn kumar modanval · Accepted Answer · 2022-09-01 19:29:18Z

0

You can try with forEach and prepare data as per your need as below code it should work for you.

x.forEach(item => {
       const [dataObj, dataString, dataNumber] = item.data;
       item.data = [dataObj.props.children, dataString, dataNumber]
   })

answered Sep 1, 2022 at 19:29

krishn kumar modanval

6124 silver badges9 bronze badges

Collectives™ on Stack Overflow

replace first element of nested arrays javascript

3 Answers 3

Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related