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Array of objects to array of arrays in JavaScript
Suppose, we have an array of objects like this −
const arr = [
{"Date":"2014","Amount1":90,"Amount2":800},
{"Date":"2015","Amount1":110,"Amount2":300},
{"Date":"2016","Amount1":3000,"Amount2":500}
];We are required to write a JavaScript function that takes in one such array and maps this array to another array that contains arrays instead of objects.
Therefore, the final array should look like this −
const output = [ ['2014', 90, 800], ['2015', 110, 300], ['2016', 3000, 500] ];
Example
The code for this will be −
const arr = [
{"Date":"2014","Amount1":90,"Amount2":800},
{"Date":"2015","Amount1":110,"Amount2":300},
{"Date":"2016","Amount1":3000,"Amount2":500}
];
const arrify = (arr = []) => {
const res = [];
const { length: l } = arr;
for(let i = 0; i < l; i++){
const obj = arr[i];
const subArr = Object.values(obj);
res.push(subArr);
};
return res;
};
console.log(arrify(arr));Output
And the output in the console will be −
[ [ '2014', 90, 800 ], [ '2015', 110, 300 ], [ '2016', 3000, 500 ] ]
Updated on: 23-Nov-2020
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