# Directly Checking a Flag

### Check if a flag is on

```javascript
if (Toggly.isFeatureOn('SignUpButton')) {
    // SignUpButton is ON
}
```

### Check if at least one of the listed flags is on

```javascript
if (Toggly.evaluateFeatureGate(['ExampleFeatureKey1', 'ExampleFeatureKey2'], FeatureRequirement.any)) {
  // AT LEAST ONE the provided feature keys is TRUE
}
```

### Evaluate a feature gate (with requirement & negate support)

```javascript
if (Toggly.evaluateFeatureGate(['ExampleFeatureKey1', 'ExampleFeatureKey2'], FeatureRequirement.all, true)) {
  // ALL the provided feature keys are FALSE
}
```


---

# Agent Instructions: Querying This Documentation

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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.toggly.io/feature-flags/feature-flags-in-javascript/directly-checking-a-flag.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.