---
title: "showHideLayersByType()"
canonical: "https://onesaitplatform.refined.site/space/DOCT/2220801486/showHideLayersByType()"
format: markdown
---
> ℹ️ **Information**
> ℹ️
> ℹ️ Implementation version: beta 1.01
> ℹ️
> ℹ️ Updated in: beta 1.09
# Description
Shows or hides all the layers of a particular type, or of all the types.
# Invocation
```javascript
showHideLayersByType(
showProperty,
layerType
)
```
# Input parameters
## showProperty
parameter collecting whether you want to show or hide the layers. This parameter is entered as a text string, and can be:
1. **show**: to show the layers of that type.
2. **hide**: to hide the layers of that type.
## layerType
Parameter that includes the type of layers whose visibility you want to modify. This parameter is also entered as a text string, and accepts one of the following options:
1. **all**: to consider all types of layers.
2. **dataSources**: to modify only the entities contained in dataSources.
3. **entities**: to modify only the entities contained in the viewer and outside a dataSource.
4. **heatmaps**: to modify only heat maps.
5. **primitives**: to modify only the primitives contained in the viewer's scene.
# Use examples
Hide all types of layers present on the map:
```javascript
showHideLayersByType(
'hide',
'all'
)
```
Show all types of layers present on the map:
```javascript
showHideLayersByType(
'hide',
'all'
)
```
> ℹ️ **Examples symbology**
> ℹ️
> ℹ️ City icons (aquamarine color) are entities contained in a dataSource; red dots are primitive; and the purple image corresponds to a heat map.
Hide only entity dataSources:
```
showHideLayersByType(
'hide',
'dataSources'
)
```
Show only entity dataSources:
```
showHideLayersByType(
'show',
'dataSources'
)
```
