how-svelte-works/todo.md

####### to do

• make a button to destroy something and see what functions run (detach/destroy?)
• use "The Dirty Flush pattern" somewhere "You don't remember that chapter? That's because I just invented that name. Gross. ""
• "Side Effect City" - Even the callbacks have side effects...
  • maybe propose some changes to the dev mode output to make things more readable
• Can dirty ever contain anything besides a single integer? In other words, are elements updated one after the next, or can update sometimes operate on more than one element at a run?
  • no, because make_dirty only does its thing if dirty is [-1]:
  • but try with a click handler that updates two props and see what happens to dirty

    function make_dirty(component, i) {
        if (component.$$.dirty[0] === -1) {
            dirty_components.push(component);
            schedule_update();
            component.$$.dirty.fill(0);
        }
        component.$$.dirty[(i / 31) | 0] |= (1 << (i % 31));
    }