`
modun
  • 浏览: 149489 次
  • 性别: Icon_minigender_1
  • 来自: 成都
社区版块
存档分类
最新评论

Type-Checking Variables

 
阅读更多


          Type-Checking Variables

          Variable               typeof Variable        Variable.constructor

          { an: “object” }       object                 Object

          [ “an”, “array” ]      object                 Array

          function(){}           function               Function

          “a string”             string                 String

          55                     number                 Number

          true                   boolean                Boolean

          new User()             object                 User

 

分享到：
| 键盘钢琴(有空进来弹弹琴,真的可以弹的)
评论
发表评论

您还没有登录,请您登录后再发表评论

相关推荐

    FastReport Professional v3.0 Full Source

    - Strict type checking. - Multi-language architecture allows you to use many languages (Pascal, C++, Basic, Java). - Access to any object inside your application (in case you've allowed this). ...

    The Art of Assembly Language Programming

    QWORD, and TBYTE Variables 5.3.5 - Declaring Floating Point Variables with REAL4, REAL8, and REAL10 5.4 - Creating Your Own Type Names with TYPEDEF 5.5 - Pointer Data Types 5.6 - ...

    Objective-C 基础教程

    - **Type Checking（类型检查）**：介绍了如何进行类型检查，确保对象符合指定的协议。 - **Protocols Within Protocols（协议中的协议）**：讨论了协议嵌套的概念。 - **Referring to Other Protocols（引用其他...

    SCJP6 Sun Certificated Programmer for Java 6 Study Guide (Exam 310-065) 英文原版

    - **Primitive Data Type Assignments**: Assigning values to variables of primitive types such as int, double, etc. - **Object Assignments**: Assigning object references to variables. - **Type Casting**...

    EurekaLog_7.5.0.0_Enterprise

    10)..Fixed: Wrong function codes for hooking (affects ISAPI application type) 11)..Fixed: Wrong button caption in "Steps to Reproduce" dialog 12)..Fixed: Crash when taking snapshot of some proccesses ...

    Writing GNOME Applications

    The GTK+ Type System Object Classes Object Properties Signals GNOME Core Libraries Graphics Libraries Components Gnome-xml 3. The GNOME Build Environment The Configuration Script Running configure ...

    qemu-0.13.0(编译过全处理器支持)

    -no-fd-bootchk disable boot signature checking for floppy disks -no-acpi disable ACPI -no-hpet disable HPET -balloon none disable balloon device -balloon virtio[,addr=str] enable virtio balloon ...

    Qemu-1.0.1 for windows

    -no-fd-bootchk disable boot signature checking for floppy disks -no-acpi disable ACPI -no-hpet disable HPET -balloon none disable balloon device -balloon virtio[,addr=str] enable virtio balloon ...

    uC-FS-4.08.00.zip

    Devices and Volumes: Multiple media can be accessed simultaneously, including multiple instances of the same type of medium (since all drivers are re-entrant). DOS partitions are supported, so more ...

    FlexGraphics_V_1.79_D4-XE10.2_Downloadly.ir

    Absence of the UpdateCounter checking brings to reccurent scaling. Access demo: - FIX Memory leak in TdmMain.dmMainDestroy method. Version 1.5 ----------- - FIX: In the methods TFlexPanel ...

    The Craft of System Security

    2.7 Object reuse with local variables 37 2.8 The Orange Book's path through the functionality/assurance space 41 4.1 Basic computer architecture 62 4.2 The memory management unit 65 4.3 Address ...

    IOS5 Programming Cookbook

    - **Variable Declaration**: In Objective-C, variables are declared with a data type followed by the variable name. For example, `int count;` declares an integer variable named `count`. - **...

    FastReport 3.0 Trial for Delphi5 无源码

    Strict type checking. Multi-language architecture allows you to use many languages (Pascal, C++, Basic, Java). Access to any object inside your application (in case you‘ve allowed this). Standard ...

    FastReport 3.0 Trial for Delphi6 无源码

    Strict type checking. Multi-language architecture allows you to use many languages (Pascal, C++, Basic, Java). Access to any object inside your application (in case you‘ve allowed this). Standard ...

    FastReport 3.0 Trial for Delphi7 无源码

    Strict type checking. Multi-language architecture allows you to use many languages (Pascal, C++, Basic, Java). Access to any object inside your application (in case you‘ve allowed this). Standard ...

    一个win32下的ARM开源编译器

    FASMARM v1.42 This package is an ARM assembler add-on for FASM. FASMARM currently supports the full range of instructions for 32-bit and 64-bit ARM processors and coprocessors up to and including v8...

    Advanced Bash-Scripting Guide <>

    9.4. 指定类型的变量:declare 或者typeset 9.5. 变量的间接引用 9.6. $RANDOM: 产生随机整数 9.7. 双圆括号结构 10. 循环和分支 10.1. 循环 10.2. 嵌套循环 10.3. 循环控制 10.4. 测试与分支(case 和select 结构) 11...

    Google C++ Style Guide(Google C++编程规范）高清PDF

    Scoping Namespaces Nested Classes Nonmember, Static Member, and Global Functions Local Variables Static and Global Variables Classes Doing Work in Constructors Default Constructors Explicit ...

Magicbox
Global site tag (gtag.js) - Google Analytics