The second way is to cast data to immutable . The simplest immutable declarations use it as a storage class. 一定不会被改变的数据可以标记为immutable 。 Data that will never change its value can be typed as immutable . 使用immutable ,无服务器的和“新的”云架构。 The use of immutable , serverless, and“new” cloud architectures.
An object that cannot be modified after execution is called immutable . 非immutable类型不能隐式转换为immutable 类型,反之亦然。 Mutable types cannot be implicitly converted to immutable , and vice versa. 此外,大多数可变(参见下面的immutable )对象,例如列表,不能用作键。 Also, most mutable(see immutable below) objects, such as lists, may not be used as keys. 创建immutable hosts,而不是那些需要不断修补、升级的长寿命服务器。 Create immutable hosts instead of long-lived servers that you patch and upgrade. 但经验丰富的开发者可以将库与GraphQL,Relay,Flux和Immutable . But experienced devs can combine the library with GraphQL, Relay, Flux and Immutable . 数据可以被标记为const或immutable ,而其默认是可变的(即mutable)。 Data can be marked as const or immutable , with the default being changeable(or mutable). 但经验丰富的龙都娱乐可以将库与GraphQL,Relay,Flux和Immutable . But experienced devs can combine the library with GraphQL, Relay, Flux and Immutable . Firefox选择以用cache-control:immutable 的头格式表示此指示。 Firefox chose to implement this directive in the form of a cache-control: immutable header. 下周,我们将以MIT许可证对我们的开源项目React、Jest、Flow和Immutable . Next week, we are going to relicense our open source projects React, Jest, Flow, and Immutable . Immutable 数据可以放在ROM(只读存储器)中或者由硬件设为只读的内存中。Immutable data can be placed in ROM(Read Only Memory) or in memory pages marked by the hardware as read only. 大多数类在集合树中存在这于三种变体:root,mutable和immutable 。 Most of the classes in the collections hierarchy exist in three variants: root, mutable, and immutable . 请注意,在本版本的HashData数据库中,用户定义的转换中使用的用户定义函数必须定义为IMMUTABLE 。 For this release of HAWQ, user-defined functions used in a user-defined cast must be defined as IMMUTABLE . 这是因为整数是immutable 对象,当我们执行x=x+1时我们并不是改变了5这个对象的值;. This is because integers are immutable , and when we do x= x+ 1 we are not mutating the int 5 by incrementing its value; Facebook的工程总监亚当·沃尔夫宣布,许多项目-React,Jest,Flow和Immutable . Adam Wolff, an engineering director at Facebook, has announced that a number of projects- React, Jest, Flow, and Immutable . 把immutable用作存储类相当于把immutable 用作整个声明类型的typeconstructor:. Immutable used as a storage class is equivalent to using immutable as a type qualifier for the entire type of a declaration:. 大多数的HTTPGET请求,拿到的数据库里面的数据,都被当成是immutable 的不可重入的输入,而没有状态。 For the purposes of most HTTP requests(GET requests), the data in the database is treated as an immutable data input, not state. 请注意,在本版本的HashData数据库中,用户定义的转换中使用的用户定义函数必须定义为IMMUTABLE 。 Note that in this release of Greenplum Database, user-defined functions used in a user-defined cast must be defined as IMMUTABLE . Immutable BlobStorage本质上是Azure现有对象存储的专业版本,带有很多附加的安全功能。The Immutable Blob Storage is a specialized version of Azure's existing object storage and includes a number of added security features. 微软公司今天推出了Immutable BlobStorage,这是Azure平台上一种新的“防篡改”存储服务,该服务用于保护敏感数据。 Today Microsoft introduced Immutable Blob storage, a new“tamper-proof” storage service in its Azure platform for safekeeping sensitive data. 最近,中国互联网巨头腾讯的最大股东Naspers参与了对区块链游戏开发商Immutable 的1500万美元投资。 Naspers, the largest shareholder of Chinese Internet giant Tencent, has participated in a $15 million investment in blockchain game developer Immutable . 由于immutable 数据不会改变,所以可以得到许多程序优化的机会,还可便于采用函数式编程。 Since immutable data does not change, it enables many opportunities for program optimization, and has applications in functional style programming. 我们将会开发基础的产品和技术,让玩家拥有虚拟物品成为一个新常态”JamesFerguson,Immutable 的CEO说到。 We're building foundational products and technology to make true ownership of digital objects a new normal," said James Ferguson, CEO of Immutable . 对利用不可变值(immutable values)及显式时间进展构造(explicitprogression-of-timeconstructs)进行编程的专注旨在促进更加健壮的(尤其是多线程)程序的开发。 This focus on programming with immutable values and explicit progression-of-time constructs is intended to facilitate developing more robust programs, especially multithreaded ones.
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