hasInjectionContext() Check Whether inject() Is Safe Here
Last updated: 2026-10-22
hasInjectionContext() Check Whether inject() Is Safe Here
hasInjectionContext() reports whether inject() can be called here — a guard for shared utilities.
| Group | Dependency Injection |
|---|---|
| Kind | API |
| Scope | Component |
| Vue Version | 3.3+ |
| SSR Support | Yes |
📝 Syntax
if (hasInjectionContext()) {
const cfg = inject('config')
}Returns：Boolean
▶ Example
Edit the code below and see the live result:
Output：
Shows 'Context available: true'.💡 Key Points
ℹ️ Note Libraries probe the context to avoid inject warnings outside components.
⚠️ Warning 3.3+ only; older projects use try/catch or explicit arguments.
🏷️ Related Dependency Injection
💡 Related Cases
More case studies coming soon.
📚 Related Tutorials
❓ FAQ
Q What happens without it?
A Outside components inject warns and returns undefined, hiding bugs.
Q Who uses it typically?
A Component libraries and composables supporting both injected config and plain usage.
Q Does it mean 'inside setup'?
A Roughly — any context where inject is allowed, including effects in scope.
