Question

How do you swap variables in destructuring assignment?

Answer 1

If you don't use destructuring assignment, swapping two values requires a temporary variable. Whereas using a destructuring feature, two variable values can be swapped in one destructuring expression. Let's swap two number variables in array destructuring assignment,

var x = 10,
  y = 20;

[x, y] = [y, x];
console.log(x); // 20
console.log(y); // 10