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mk-pmb avatar mk-pmb commented on May 27, 2024 1

Another good reason to name a function, or to save some intermediate result in a named variable, is that it gives a free opportunity to describe your intent, if you're somewhat good with descriptive naming. Very useful for future maintenance programmers, probably your future self.

from js-mythbusters.

Kikobeats avatar Kikobeats commented on May 27, 2024

From https://hackernoon.com/how-to-make-the-fastest-promise-library-f632fd69f3cb

Avoid creating unnecessary variables, functions and instances
Following this principle helps avoiding unnecessary memory allocations. For example

function sum(array) {
  return array.reduce(function iterator(result, num) {
    return result + num;
  });
}


sum([1, 2, 3]); // 6

When sum is called, the iterator function is always created. It is one of unnecessary memory allocations. The code is rewritten to follow next example.

function iterator(result, num) {
  return result + num;
}

function sum(array) {
  return array.reduce(iterator);
}

sum([1, 2, 3]); // 6

The code avoids making unnecessary functions.

from js-mythbusters.

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