Function applyAttributeValueLowerOrEqualsTo

applyAttributeValueLowerOrEqualsTo(layerId, attributeId, attributeValue): string
JMap.Map.Filter.applyAttributeValueLowerOrEqualsTo

Render only layer's features that has attributeId having value lower or equals to attributeValue.

Only one attribute filter can be set for a specific layer and attributeId at the same time.
Parameters
- layerId: JId
  The JMap layer id
- attributeId: string
  The JMap attribute id
- attributeValue: any
  The attribute value
Returns string
The filter id. By example for layer 4 and attribute 'on_off' => "attribute-4-on_off"
Throws
Error if layer or attribute is not found

Example
```
// Will render features having "level" lower or equals to 5 for layer 4
JMap.Map.Filter.applyAttributeValueLowerOrEqualsTo(4, "level", 5)
```