I have the array "arrs" with nested arrays like below:
let arrs = ["Apple", ["Peach", "Grape"], [["Pear", "Kiwi"], ["Lemon"]]];
Now, I want to convert the array "arrs" to the new array "newArr" without nested arrays like below:
let newArr = [ "Apple", "Peach", "Grape", "Pear", "Kiwi", "Lemon" ];
I created the code to convert "arrs" to "newArr" without nested arrays:
let newArr = [arrs[0], arrs[1][0], arrs[1][1], arrs[2][0][0], arrs[2][0][1], arrs[2][1][0]];
console.log(newArr); // [ "Apple", "Peach", "Grape", "Pear", "Kiwi", "Lemon" ]
This is the full runnable code:
let arrs = ["Apple", ["Peach", "Grape"], [["Pear", "Kiwi"], ["Lemon"]]];
let newArr = [arrs[0], arrs[1][0], arrs[1][1], arrs[2][0][0], arrs[2][0][1], arrs[2][1][0]];
console.log(newArr); // [ "Apple", "Peach", "Grape", "Pear", "Kiwi", "Lemon" ]However, I want to make this code simpler, cooler or clever. Are there any ways to do this?
let newArr = [arrs[0], arrs[1][0], arrs[1][1], arrs[2][0][0], arrs[2][0][1], arrs[2][1][0]];
console.log(newArr); // [ "Apple", "Peach", "Grape", "Pear", "Kiwi", "Lemon" ]
You can use "flat()" with "2":
let arrs = ["Apple", ["Peach", "Grape"], [["Pear", "Kiwi"], ["Lemon"]]];
let newArr = arrs.flat(2);
console.log(newArr); // [ "Apple", "Peach", "Grape", "Pear", "Kiwi", "Lemon" ]In addition, you can use "flat()" with "Infinity" for any depth of nested array.
let arrs = ["Apple", ["Peach", "Grape"], [["Pear", "Kiwi"], ["Lemon"]]];
let newArr = arrs.flat(Infinity);
console.log(newArr); // [ "Apple", "Peach", "Grape", "Pear", "Kiwi", "Lemon" ]