Skip to content

Learn Install GitHub

1. Welcome
2. Your First Program
3. Declarations
4. Everyday Types
5. Structs And Classes
6. Functions And Callables
7. Lifetimes And Allocation
8. Pointers And Conversion
9. Errors And Cleanup
10. Names And Symbols
11. Enums And Newtypes
12. Interfaces
13. Generics
14. Iterators
15. Async And Await
16. Standard Library
17. Native Interop
18. Expressions Reference
19. Attributes And Metadata

1. campc Command Line
2. Build Files And Pragmas
3. Package Management (Experimental)
4. Targets And Native Builds
5. Artifacts, Cache, And Output Layout
6. Metadata JSON
7. Dumps, Diagnostics, And Introspection
8. Language Server And Editor Tooling
9. Standard Library Build Integration
10. Debug Adapter And VS Code Debugging

Standard Library API

Arrays
Collections
Date/Time
Diagnostics
I/O
Memory
Primitives
Strings
Synchronization

Overview

Ext JSON
- Overview
Ext ArgParser
- Overview
Ext AnsiTerm
- Overview

HashMap.containsKey

Language Guide 1. Welcome 2. Your First Program 3. Declarations 4. Everyday Types 5. Structs And Classes 6. Functions And Callables 7. Lifetimes And Allocation 8. Pointers And Conversion 9. Errors And Cleanup 10. Names And Symbols 11. Enums And Newtypes 12. Interfaces 13. Generics 14. Iterators 15. Async And Await 16. Standard Library 17. Native Interop 18. Expressions Reference 19. Attributes And Metadata

Compiler Guide 1. campc Command Line 2. Build Files And Pragmas 3. Package Management (Experimental)4. Targets And Native Builds 5. Artifacts, Cache, And Output Layout 6. Metadata JSON 7. Dumps, Diagnostics, And Introspection 8. Language Server And Editor Tooling 9. Standard Library Build Integration 10. Debug Adapter And VS Code Debugging

Standard Library API Arrays Collections Date/Time Diagnostics I/O Memory Primitives Strings Synchronization

Package APIs Overview Ext JSON Overview Ext ArgParser Overview Ext AnsiTerm Overview

HashMap.containsKey

Back to HashMap<K, V>

bool containsKey(const this, in K key)

Returns true when the key is present.

Parameters

const

this

in K

key

Generated with campc 0.11.0-preview.1.

Camp is a modern native programming language with durable foundations.

Language Guide Compiler Guide Compiler Source