Execute custom JavaScript code after rendering

Description

Use this function to supplement the widget's built-in JavaScript rendering logic with additional custom JavaScript code, just for this specific widget object.

Usage

onRender(x, jsCode)

Arguments

Details

The jsCode parameter must be a valid JavaScript expression that returns a function.

The function will be invoked with two arguments: the first is the widget's main HTML element, and the second is the data to be rendered (the x parameter in createWidget). When the function is invoked, the this will be the widget instance object.

Value

The modified widget object

See Also

onStaticRenderComplete, for writing custom JavaScript that involves multiple widgets.

Examples

## Not run: 
library(leaflet)

leaflet() %>% addTiles() %>%
  onRender("
    function(el, x) {
      // Navigate the map to the user's location
      this.locate({setView: true});
    }
  ")

## End(Not run)

Results