Tutorial by Examples: f

Android O changes the way to work with fonts. Android O introduces a new feature, called Fonts in XML, which allows you to use fonts as resources. This means, that there is no need to bundle fonts as assets. Fonts are now compiled in an R file and are automatically available in the system as a reso...

The keyword function can be used to initiate pattern-matching on the the last argument of a function. For example, we can write a function called sum, which computes the sum of a list of integers, this way let rec sum = function | [] -> 0 | h::t -> h + sum t ;; val sum : int list -&...

Drop/Delete your database If you are using SQLite for your database, just delete this file. If you are using MySQL/Postgres or any other database system, you will have to drop the database and then recreate a fresh database. You will now need to delete all the migrations file except "init.py...

To access complete schema of server db instead of single table. Follow below steps: Create EXTENSION : CREATE EXTENSION postgres_fdw; Create SERVER : CREATE SERVER server_name FOREIGN DATA WRAPPER postgres_fdw OPTIONS (host 'host_ip', dbname 'db_name', port 'port_numb...

For this example, we will used 4 bodies and will show only the last 8 bits of the bit masks for simplicity. The 4 bodies are 3 SKSpriteNodes, each with a physics body and a boundary: let edge = frame.insetBy(dx: 0, dy: 0) physicsBody = SKPhysicsBody(edgeLoopFrom: edge) Note that the 'ed...

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1) IP based vhosts <VirtualHost 192.168.13.37> ServerName example.com DocumentRoot /var/www/domains/example.com/html ErrorLog /var/log/example.com/error.log CustomLog /var/log/example.com/access.log common </VirtualHost> <VirtualHost 192.168.47.11> ...

Redis allow you to use the String data type to store floating point numbers. A user can set the float value of a key using the command: SET floatkey 2.0 The set command will create the key if necessary or update it if it already exists. The value of the key can be updated on the server using e...

For registration like this: var container = new WindsorContainer(); container.Register( Component.For<FirstInterceptor>(), Component.For<SecondInterceptor>(), Component.For<ThirdInterceptor>(), Component.For<IService>() .ImplementedBy<Servi...

A shift register of generic length. With serial in and serial out. library ieee; use ieee.std_logic_1164.all; use ieee.numeric_std.all; entity SHIFT_REG is generic( LENGTH: natural := 8 ); port( SHIFT_EN : in std_logic; SO : out std_logic; ...

To create a customization plugin, you simply create a class derived from CustomizationPlug and package it into customization. While the system is publishing customization project, it will execute the OnPublished and UpdateDatabase methods implemented in your customization plugin only within the curr...

I won't repeat it all here: "Application Default Credentials provide a simple way to get authorization credentials for use calling Google APIs." If you can use Application Default Credentials, do. There is an extra step you will need to perform the before first using Application Default ...

The following 4 properties are available for PXSelector and PXSegmentMask input controls to define size range for a drop-down window: MinDropWidth: gets or sets the minimum drop-down control width MinDropHeight: gets or sets the minimum drop-down control height MaxDropWidth: gets or sets the ma...

The @Lazy allow us to instruct the IOC container to delay the initialization of a bean. By default, beans are instantiated as soon as the IOC container is created, The @Lazy allow us to change this instantiation process. lazy-init in spring is the attribute of bean tag. The values of lazy-init are...

<# .SYNOPSIS Gets the content of an INI file. .DESCRIPTION Gets the content of an INI file and returns it as a hashtable. .INPUTS System.String .OUTPUTS System.Collections.Hashtable .PARAMETER FilePath Specifies the path to the input INI file. .EXAMPLE ...

So what we will try to do is to compile a following function int sum(int a, int b) { return a + b + 2; } on the fly. And here's the entire .cpp example: #include <iostream> #include "llvm/IR/LLVMContext.h" #include "llvm/IR/Module.h" #include "llvm/IR/I...

The following VHDL model drives signal s from two different processes. As the type of s is bit, an unresolved type, this is not allowed. -- File md.vhd entity md is end entity md; architecture arc of md is signal s: bit; begin p1: process begin s <= '0'; wait; e...

A signal which type is resolved has an associated resolution function. It can be driven by more than one VHDL process. The resolution function is called to compute the resulting value whenever a driver assigns a new value. A resolution function is a pure function that takes one parameter and return...

I won't repeat it all here: "Application Default Credentials provide a simple way to get authorization credentials for use calling Google APIs." If you can use Application Default Credentials, do. There is an extra step you will need to perform the before first using Application Default ...

A binary tree is BST if it satisfies any one of the following condition: It is empty It has no subtrees For every node x in the tree all the keys (if any) in the left sub tree must be less than key(x) and all the keys (if any) in the right sub tree must be greater than key(x). So a straightf...