Migrate Iterations
Migrate <aura:iteration> tags in an Aura component to for:each in a Lightning web component.
Here’s the Aura syntax.
Here’s the Lightning web component syntax.
Note that you must use a key to assign a unique value to each item in the list. See Render Lists.
You can’t initialize list options in a Lightning web component template like you can in Aura component markup. You must initialize list options in JavaScript. See the lightning-dual-listbox component for an example.