Or

$or

The $or operator evaluates multiple expressions and returns true if any of them are truthy, otherwise it returns false.

Input

• An array of expressions to evaluate
• Each expression is evaluated in order from left to right

Output

• true if any expression evaluates to a truthy value
• false if all expressions evaluate to falsy values

Examples

Basic Example

{
  "$or": [
    false,
    true
  ]
}

Result: true

Multiple Expressions

[
  {
    "$or": [
      {
        "$lt": [
          {
            "$input": "temperature"
          },
          0
        ]
      },
      {
        "$gt": [
          {
            "$input": "temperature"
          },
          100
        ]
      }
    ]
  }
]

Result: true if the temperature is less than 0 OR greater than 100, otherwise false

All Falsy Values

{
  "$or": [
    false,
    false,
    false
  ]
}

Result: false