json and yaml syntax

demo.json

{
  "d_str": "hello",
  "d_str2": "hello hello /.':",
  "d_empty_str": "",
  "d_int": 123,
  "d_float": 123.456,
  "d_null": null,
  "d_array_of_str": ["a", "b"],
  "d_empty_array": [],
  "d_array_of_array": [["aa", "ab"], ["ba", "bb"]],
  "d_dict": {"a": "b"},
  "d_array_of_dict": [{"a1": "aa1", "a2": "aa2"}, {"b": "bb"}],
  "d_bool": true,
  "object": {
    "key": "value",
    "array": [
      {
        "null_value": null
      },
      {
        "boolean": true
      },
      {
        "integer": 1
      }
    ]
  },
  "paragraph": "Blank lines denote\nparagraph breaks\n",
  "content": "Or we\ncan auto\nconvert line breaks\nto save space"
}

demo.yml

---
d_str: hello
d_str2: 'hello hello /.'':'
d_empty_str: ''
d_int: 123
d_float: 123.456
d_null: 
d_array_of_str:
- a
- b
d_empty_array: []
d_array_of_array:
- - aa
  - ab
- - ba
  - bb
d_dict:
  a: b
d_array_of_dict:
- a1: aa1
  a2: aa2
- b: bb
d_bool: true
object:
  key: value
  array:
  - null_value: 
  - boolean: true
  - integer: 1
paragraph: |
  Blank lines denote
  paragraph breaks
content: |-
  Or we
  can auto
  convert line breaks
  to save space

Convert JSON to YAML
Convert YAML to JSON
YAML Multiline Strings