👈 Tips and Tricks

How to use the spread operator to flatten array of objects in javascript

How to use the spread operator to flatten array of objects in javascript

function flatten(arr) {
  while (arr.some((item) => Array.isArray(item))) {
    arr = [].concat(...arr)
  }
  return arr
}
let arr = [1, 2, [3, 4], [5, [6, 7]]]
console.log(flatten(arr))

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Spread Operator for Objects

Using the spread operator during an Object declaration will assign the properties of the referenced Object to the new Object.

How to use the spread operator to flatten array of objects in javascript

How to use the spread operator to flatten array of objects in javascript