JS add array's values to object

Question

i have an array of object and result object. How can i add all array's elements to result object

let result = {
    list: 'example',
    foo: 'something'
}

let array = [
    {
        item: 'a',
        value: 'a',
    },
    {
        item: 'b',
        value: 'b',
    },
    {
        item: 'c',
        value: 'c',
    },

]

let result = {
    list: 'example',
    foo: 'something',
    array
}
console.log(result);

I need the result to be:

{
    list: 'example',
    foo: 'something',
    item[0]: 'a',
    value[0]: 'a',
    item[1]: 'b',
    value[1]: 'b',
    item[2]: 'c',
    value[2]: 'c'
}

How should i add an array? I'm trying something like JSON.stringify, but could'n get required format.

Nina Scholz · Accepted Answer · 2018-09-20 08:05:47Z

4

You could iterate the objects of the array and assign the values to a combined key.

var result = { list: 'example', foo: 'something' },
    array = [ { item: 'a', value: 'a' }, { item: 'b', value: 'b' }, { item: 'c', value: 'c' }];

array.forEach((o, i) =>
    Object.entries(o).forEach(([k, v]) => result[`${k}[${i}]`] = v));

console.log(result);

answered Sep 20, 2018 at 8:05

Nina Scholz

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mehmetseckin · Accepted Answer · 2018-09-20 08:15:36Z

2

You can iterate through the array and populate the desired properties using Array.forEach:

let result = {
  list: 'example',
  foo: 'something'
}

let array = [{
    item: 'a',
    value: 'a',
  },
  {
    item: 'b',
    value: 'b',
  },
  {
    item: 'c',
    value: 'c',
  }
]

array.forEach((obj, index) => {
  result[`item[${index}]`] = obj.item;
  result[`value[${index}]`] = obj.value;
});

console.log(result);

edited Sep 20, 2018 at 8:15

answered Sep 20, 2018 at 8:06

mehmetseckin

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Comments

AdMer · Accepted Answer · 2018-09-20 08:06:00Z

1

Do you mean something like that ?

array.map(element => Object.assign(result, {[element.item]: element.value}))

answered Sep 20, 2018 at 8:06

AdMer

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Comments

Andrew Chan · Accepted Answer · 2018-09-20 08:15:16Z

0

I think you can do it by

array.unshift(result);

If it's not what you want, you may use loop to go through all element in the array and add them one by one (if you trying to get each element out but not with one '{item, value}' element).

answered Sep 20, 2018 at 8:15

Andrew Chan

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