Tutorial by Topics: le

UIPageViewController provides users the ability to easily transition between several views by using a swipe gesture. In order to create a UIPageViewController, you must implement the UIPageViewControllerDataSource methods. These include methods to return both the UIPageViewController before and afte...
example-2: This is serves as an example so just don't copy/past it. Instead, to suit your needs, you should customize its variables; ansible_key, security group rules etc.. example-1: To disable the ssh strict host key checking, a behavior we don't want when automating tasks, we set it to no in ...
SELECT is used to retrieve rows selected from one or more tables. SELECT DISTINCT [expressions] FROM TableName [WHERE conditions]; ///Simple Select SELECT DISTINCT(a), b ... is the same as SELECT DISTINCT a, b ... SELECT [ ALL | DISTINCT | DISTINCTROW ] [ HIGH_PRIORITY ] [ STRAI...
CREATE [TEMPORARY] [EXTERNAL] TABLE [IF NOT EXISTS] [db_name.]table_name [(col_name data_type [COMMENT col_comment], ...)] [COMMENT table_comment] [PARTITIONED BY (col_name data_type [COMMENT col_comment], ...)] [CLUSTERED BY (col_name, col_name, ...) [SORTED BY (col_name [ASC|DESC], ...)] I...
To use the predefined type _Bool and the header <stdbool.h>, you must be using the C99/C11 versions of C. To avoid compiler warnings and possibly errors, you should only use the typedef/define example if you're using C89 and previous versions of the language.
Firebase Realtime Database Rules determine who has read and write access to your database, how your data is structured, and what indexes exist. These rules live on the Firebase servers and are enforced automatically at all times. Every read and write request will only be completed if your rules al...
With Firebase Realtime Database, your Database rules is your server side security. You need to be very careful and aware of who has access to your database. It is important that no one gains access to your data that shouldn't. By default, the Firebase Realtime Database rules allow any authenticated...
Remember, the Snapshot API is used to request current state while the Fence API continuously checks for a specified state and sends callbacks when an app isn't running. Overall, there are a few basic steps in order to use the Snapshot API or Fence API: Get an API key from the Google Develope...
Public counter As Integer Private _counter As Integer Dim counter As Integer
Data.table is a package for the R statistical computing environment. It extends the functionality of data frames from base R, particularly improving on their performance and syntax. A number of related tasks, including rolling and non-equi joins, are handled in a consistent concise syntax like DT[...
Superglobals are built-in variables that are always available in all scopes. Several predefined variables in PHP are "superglobals", which means they are available in all scopes throughout a script. There is no need to do global $variable; to access them within functions or methods. ...
Note about XML syntax: As the record is made inside of XML file, you can not leave any tag unclosed as you could in a plain HTML, like: <link rel='stylesheet' href="..." >, Close the link tag instead, like: <link rel='stylesheet' href="..." /> Possible ...
Middleware are classes, that can be assigned to one or more route, and are used to make actions in the early or final phases of the request cycle. We can think of them as a series of layers an HTTP request has to pass through while it's executed A "Before" middleware will executes be...

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