Convert JavaScript array of objects to JSON in r programming language

I need to pass JSON object to a function in r programming. The following are the various examples of JavaScript objects that can be passed which needed to be converted to JSON in r

Example1 = [
  {name: "Orange", data: {"Tuesday": 3, "Friday": 4}, stack: "fruit"},
  {name: "Apple", data: {"Tuesday": 1, "Friday": 8}, stack: "fruit"},
  {name: "Cucumber", data: {"Tuesday": 3, "Friday": 4}, stack: "vegetable"},
  {name: "Carrot", data: {"Tuesday": 1, "Friday": 8}, stack: "vegetable"}
]

Example2 = [["Washington", "1789-04-29", "1797-03-03"], ["Adams", "1797-03-03", "1801-03-03"]]

I need help converting them into a JSON object in r using jsonlite package.

To have a "true" JSON string, you can use the jsonNormalize package.

library(jsonNormalize)

jsonNormalize(
  '[
  {name: "Orange", data: {"Tuesday": 3, "Friday": 4}, stack: "fruit"},
  {name: "Apple", data: {"Tuesday": 1, "Friday": 8}, stack: "fruit"},
  {name: "Cucumber", data: {"Tuesday": 3, "Friday": 4}, stack: "vegetable"},
  {name: "Carrot", data: {"Tuesday": 1, "Friday": 8}, stack: "vegetable"}
]', prettify = TRUE)

[
  {
    "name": "Orange",
    "data": {
      "Tuesday": 3,
      "Friday": 4
    },
    "stack": "fruit"
  },
  {
    "name": "Apple",
    "data": {
      "Tuesday": 1,
      "Friday": 8
    },
    "stack": "fruit"
  },
  {
    "name": "Cucumber",
    "data": {
      "Tuesday": 3,
      "Friday": 4
    },
    "stack": "vegetable"
  },
  {
    "name": "Carrot",
    "data": {
      "Tuesday": 1,
      "Friday": 8
    },
    "stack": "vegetable"
  }
]

The jsonNormalize package also provides a RStudio addin allowing to normalize a json file by pressing a button.