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destructing is very useful and encourage good coding styles Is it? Personally I'd say that was bad code. What so wrong with using the original objects? Puttin

• fnord123 10y ago
  var lst = [[1,2], [3,4], [5,6]]; for (var [a,b] of lst) { console.log(a + b); } You could write a `zip` function to merge multiple iterables together and iterator them. Or use something like `.enumerate()` to yield indices along with the values.
• rubber_duck 10y ago
  >Is it? Yes, but not in the silly example showed. Consider something like : zip(fooArray, barArray, bazArray).map(([foo, bar, baz]) => foo + bar + baz) zip(fooArray, barArray, bazArray).map((arr) => arr[0] + arr[1] + arr[2]);
• ubertaco 10y ago
  It's really nice for when you have to do operations where you want a "tuple" in Javascript. Consider the case of finding all companies along with their hires from the last week, but only if the company has a hire from the last week: companies.map(c => [c, employeeStorage.getEmployees(c)]) .map(([company, employees]) => [company, employees.filter(e => e.hireDate > aWeekAgo)]) .filter(([company, employees]) => employees.length > 0)