I have this JavaScript array of arrays
arr1= [
['a', 'b'],
['1', '2']
]
And I need to form this JSON object
[
{
"label":"a",
"value":"1"
},
{
"label":"b",
"value":"2"
},
]
How do I do it?
Look at this ...
const entries = new Map([
['foo', 'bar'],
['baz', 42]
]);
const obj = Object.fromEntries(entries);
console.log(obj);
// expected output: Object { foo: "bar", baz: 42 }
Did you mean something like this? Source: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/fromEntries
You could take an array with the keys of the wanted objects and reduce and map the items.
const
data = [['a', 'b'], ['1', '2']],
keys = ['label', 'id'],
result = data.reduce((r, a, i) => a.map((v, j) => ({ ...r[j], [keys[i]]: v })), []);
console.log(result);.as-console-wrapper { max-height: 100% !important; top: 0; }