Value is Null or Undefined Check Operators

The operators in sections that follow are used to check whether referenced JSON value is null or undefined.

• ‘is null’
  • Operator Operands
  • Evaluation Rules
  • Examples
• ‘is not null’
  • Operator Operands
  • Evaluation Rules
  • Examples
• ‘is undefined’
  • Operator Operands
  • Evaluation Rules
  • Examples
• ‘is not undefined’
  • Operator Operands
  • Evaluation Rules
  • Examples
• Examples