> ## Documentation Index
> Fetch the complete documentation index at: https://docs.metrics-man.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Nor

# \$nor

The `$nor` operator evaluates multiple expressions and returns `true` only if all of them are falsy, otherwise it returns `false`. It's the negation of the `$or` operator.

## Input

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

## Output

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

## Examples

### All Falsy Values

```json theme={null}
{
  "$nor": [
    false,
    false
  ]
}
```

Result: `true`

### With Truthy Value

```json theme={null}
{
  "$nor": [
    false,
    true,
    false
  ]
}
```

Result: `false`

### Multiple Expressions

```json theme={null}
[
  {
    "$nor": [
      {
        "$lt": [
          {
            "$input": "score"
          },
          10
        ]
      },
      {
        "$gt": [
          {
            "$input": "score"
          },
          90
        ]
      }
    ]
  }
]
```

Result: `true` if the score is NOT less than 10 AND NOT greater than 90 (i.e., score is between 10 and 90 inclusive), otherwise `false`