Add functions to update items in array

[cwayfinder]

Feature request

I would like to see set of methods for bulk work with arrays items. They might be built on top of existing ones (e.g. set, merge, toggle, etc).

Example of verbose code:

const units = state.units.map(unit => {
  if (unit.team === team) {
    return ({ ...unit, selected: true });
  } else {
    return unit;
  }
});
state = { ...state, units };

we can invent something like:

state = dotProps.mergeForArrayItems(state, 'units', { selected: true }, unit => unit.team === team);

or using dedicated namespace

state = dotProps.array.merge(state, 'units', { selected: true }, unit => unit.team === team);
// signature: merge(obj, prop, val [, predicate])