Crystal Programming Language v1.2 Reference
首页
白天
夜间
下载
阅读记录
书签管理
我的书签
添加书签
移除书签
编辑文档
if var.responds_to?(…)
来源 1
浏览
153
扫码
打印
2022-04-11 08:36:42
if var.responds_to?(…)
上一篇:
下一篇:
发布点评
Guides
Database
Connection
Connection pool
Transactions
Continuous Integration
CircleCI
GitHub Actions
Concurrency
Performance
Static Linking
Testing
Writing Shards
Hosting on GitHub
Hosting on GitLab
Home
Coding style
Getting started
A Command Line Application
An HTTP Server
Governance document
Platform Support
The shards command
Using the compiler
Specification
Annotations
Built-in annotations
Assignment
Comments
Compile-time flags
Cross-compilation
Control expressions
&&
case
if
As an expression
As a suffix
if var
if var.is_a?(…)
if var.responds_to?(…)
if var.nil?
if !
Ternary if
||
Truthy and falsey values
unless
until
while
break
next
C bindings
alias
Callbacks
Constants
enum
fun
out
to_unsafe
lib
struct
type
union
Variables
Documenting code
Exception handling
Literals
Array
Bool
Char
Command
Floats
Hash
Integers
NamedTuple
Nil
Proc
Range
Regex
String
Symbol
Tuple
Local variables
Low-level primitives
Uninitialized variable declaration
instance_sizeof
offsetof
pointerof
sizeof
Macros
Fresh variables
Hooks
Macro methods
About this guide
Requiring files
Types and methods
alias
Blocks and Procs
Block forwarding
Capturing blocks
Closures
Proc literal
Classes and methods
Class methods
Class variables
Default parameter values and named arguments
Method arguments
finalize
Inheritance
Virtual and abstract types
Methods and instance variables
new, initialize and allocate
Operators
Overloading
Return types
Splats and tuples
Type inference
Type restrictions
Union types
Visibility
Constants
Enums
Everything is an object
Generics
Modules
Structs
The Program
Type grammar
Type reflection
as
as?
is_a?
nil?
responds_to?
typeof
Unsafe code
Tutorials
Basics
Hello World
Variables
Math
Strings
Control Flow
Methods
暂无相关搜索结果！
本文档使用
全库网
构建
×
思维导图备注
×
文章二维码
手机扫一扫，轻松掌上读
×
文档下载
请下载您需要的格式的文档，随时随地，享受汲取知识的乐趣！
PDF
文档
EPUB
文档
MOBI
文档
×
书签列表
×
阅读记录
阅读进度:
0.00%
(
0/0
)
重置阅读进度
我的书签
添加书签
移除书签