---
title: Checking Consent
description: Use has() for flexible consent checks with AND, OR, and NOT logic. Check if any consent exists with hasConsented().
---
## has(condition)

The `has()` method evaluates whether the current consent state satisfies a condition. It supports simple category checks and complex logical expressions.

### Simple Check

```tsx
const { has } = useConsentManager();

if (has('measurement')) {
  // User has granted measurement consent
}
```

### AND Logic

All conditions must be true:

```tsx
has({ and: ['measurement', 'marketing'] })
// true only if BOTH measurement AND marketing are granted
```

### OR Logic

At least one condition must be true:

```tsx
has({ or: ['measurement', 'marketing'] })
// true if EITHER measurement OR marketing is granted
```

### NOT Logic

Negates a condition:

```tsx
has({ not: 'marketing' })
// true if marketing consent is NOT granted
```

### Nested Conditions

Combine operators for complex logic:

```tsx
has({
  and: [
    'necessary',
    { or: ['measurement', 'marketing'] },
    { not: 'functionality' },
  ],
})
// true if: necessary AND (measurement OR marketing) AND NOT functionality
```

### HasCondition Type

```ts
type HasCondition<CategoryType> =
  | CategoryType                                    // "measurement"
  | { and: HasCondition[] | HasCondition }          // { and: ["a", "b"] }
  | { or: HasCondition[] | HasCondition }           // { or: ["a", "b"] }
  | { not: HasCondition }                           // { not: "a" }
```

## hasConsented()

Returns `true` if the user has made any consent choice (accepted, rejected, or customized). Returns `false` if no consent has been recorded yet.

```tsx
const { hasConsented } = useConsentManager();

if (hasConsented()) {
  // User has previously made a consent choice
} else {
  // First visit — no consent recorded
}
```

## getDisplayedConsents()

Returns the consent types that should be displayed in the UI (based on active `consentCategories` and each type's `display` property):

```tsx
const { getDisplayedConsents } = useConsentManager();

const visibleCategories = getDisplayedConsents();
// Returns ConsentType[] with name, description, defaultValue, etc.
```