The Spread Operator (...)
We can use the Spread operator to expand an array into all its elements. unpacking all the array elements into one.
Example :
const arr = [7,8,9]console.log(...newArr);
const badArr = [1,2,arr[0],arr[1],arr[2]]
console.log(badArr); //1,2,7,8,9
//usi...
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