1. Vuex 需要遵守的规则 2. Vuex 目录结构示例【官方】 3. 调整 Vuex 目录结构 4. 按照功能模块组织目录结构 1. Vuex 需要遵守的规则 Vuex 并不限制你的代码结构，但是，它规定了一些需要遵守的规则 1. 应用层级的状态应该集中到单个 store 对象中。也就是一个应用最好只使用
To validate data you can make use of the Validation class. The validation helps to validate data as well as to display error messages to the user. Example 1 In the example below the make() method is used. The first argument is the data to be validated and
Let us understand what table, view and synonym in the structured query language (SQL) are. Table, view and synonym A table is a repository of data, where in the table it is a physical entity. A table resides physically in the database. A view is not a par
正则表达式的大致匹配过程是：依次拿出表达式和文本中的字符比较，如果每一个字符都能匹配，则匹配成功；一旦有匹配不成功的字符则匹配失败。 正则表达式通常用于在文本中查找匹配的字符串。Python里数量词默认是贪婪的（在少数语言里也可能是默认非贪婪），总是尝试匹配尽可
基本模式匹配 一切从最基本的开始。模式，是正规表达式最基本的元素，它们是一组描述字符串特征的字符。模式可以很简单，由普通的字符串组成，也可以非常复杂，往往用特殊的字符表示一个范围内的字符、重复出现，或表示上下文。例如： ^once 这个模式包含一个特殊的字符^，表
Generally, NoSQL databases (like MongoDB) are more popular among the Node developers. However, it totally depends upon your usecase and choice to choose any DBMS from different database options present. The type of databse you choose mainly depends upon o
After insertion, we need to delete records as well. The records should can be deleted based upon an identifier from the database table. You can delete records from table using "DELETE FROM" statement. We can delete the records from MySql DB in two ways &m
Hadoop was built to store and analyze large volumes of data across several computer clusters. It's a group of software programs that construct a data processing framework. This J**a-based framework can process enormous amounts of data quickly and cheaply.
If we're going to use a NoSQL DB for our app, then we want something fast and easy to use. We learn that "NoSQL" doesn't necessarily imply "no maintenance". We think about using managed hosting services like MongoDB's Atlas or Amazon's DynamoDB, but we ch