Reactivity
Assignments trigger updates, and $: derives values.
What you will be able to do
- Use let for reactive state.
- Assign to update.
- $: creates derived values.
In plain English
Assignments trigger updates, and $: derives values.
- Use let for reactive state.
- Assign to update.
- $: creates derived values.
<script>
let count = 1
$: double = count * 2
</script>
<p>{count} doubled is {double}</p>Your turn
EasyExplain it back
Answer from memory: Which symbol marks a reactive declaration?
TEXT · starter
Your answer…Check your understanding before moving on.
Knowledge checkQuestion 1
Which symbol marks a reactive declaration?
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