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docs/tut/crash-course/8-implicit-effect.md
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@ -1,7 +1,7 @@
# Implicit Effects
Explicitly creating effects to update properties can be tedious. Vide provides a
way to *implicitly* create an effect to update properties.
Explicitly creating effects to update properties is tedious. You can
*implicitly* create an effect to update properties instead.
```lua
local create = vide.create
@ -25,18 +25,14 @@ end
This example is equivalent to the example seen on the previous page.
Instead of explicitly creating an effect, assigning a (non-event) property a
function will implicitly create an effect to update that property anytime a
source used within is updated.
Just like effects, the function is ran immediately in a reactive scope to set
the property initially and determine what sources are being used.
function will implicitly create an effect to update that property.
## Children
Children can also be set in a similar manner. A source passed as a child (passed
with a number key instead of string key) can return an instance or an array of
instances. Vide will automatically unparent removed instances and parent new
instances when that source's stored instances change.
instances. An effect is automatically created to unparent removed instances and
parent new instances on source update.
```lua
local items = source {
@ -57,5 +53,5 @@ items {
create "TextLabel" { Text = "C" }
}
-- this will automatically unparent the text label "A", and parent the labels "B" and "C".
-- this will automatically unparent the text label "A", and parent the labels "B" and "C"
```