Understanding JSON Keywords & Literals

JSON Literal Values & Keywords

Unlike full programming languages, JSON defines only three keyword literals: true, false, and null. All three must be strictly lowercase.

Literal Specifications:

• true / false: Boolean primitives. Keywords like True or FALSE trigger syntax errors.
• null: Represents empty or non-existent values. None or undefined are invalid in JSON.

{
  "isActive": true,
  "isDeleted": false,
  "deletedAt": null
}