Tutorial by Examples: me

docker-compose.yml version: '2' services: php: image: phpmyadmin/phpmyadmin links: - mysql:db depends_on: - mysql mysql: image: k0st/alpine-mariadb volumes: - ./data/mysql:/var/lib/mysql environment: - MYSQL_DATABASE=mydb ...

docker volume create --name="myAwesomeApp" Using a named volume makes managing volumes much more human-readable. It is possible to create a named volume using the command specified above, but it's also possible to create a named volume inside of a docker run command using the -v or --vo...

Numeric CSS properties can be incremented and decremented with the += and -= syntax, respectively, using the .css() method: // Increment using the += syntax $("#target-element").css("font-size", "+=10"); // You can also specify the unit to increment by $...

TYPO3 has extensive documentation. This documentation is linked here, so people can find stuff that is not documented here. Main Documentation The documentation of TYPO3 CMS is collected at docs.typo3.org, there is a list of all documentation for the core, and documentation for extensions. Promin...

It's possible to perform elementary set operations with Matlab. Let's assume we have given two vectors or arrays A = randi([0 10],1,5); B = randi([-1 9], 1,5); and we want to find all elements which are in A and in B. For this we can use C = intersect(A,B); C will include all numbers which ...

If you implement a text-search as LIKE-query, you usually do it like this: SELECT * FROM T_Whatever WHERE SomeField LIKE CONCAT('%', @in_SearchText, '%') However, (apart from the fact that you shouldn't necessarely use LIKE when you can use fulltext-search) this creates a problem when someb...

If your array or array-like object is numeric, that is, if all its elements are numbers, then you can use Math.min.apply or Math.max.apply by passing null as the first argument, and your array as the second. var myArray = [1, 2, 3, 4]; Math.min.apply(null, myArray); // 1 Math.max.apply(null, my...

SOAP services can publish metadata that describes the methods that may be invoked by clients. Clients can use tools such as Visual Studio to automatically generate code (known as client proxies). The proxies hide the complexity of invoking a service. To invoke a service, one merely invokes a metho...

To find the largest or smallest element stored in a vector, you can use the methods std::max_element and std::min_element, respectively. These methods are defined in <algorithm> header. If several elements are equivalent to the greatest (smallest) element, the methods return the iterator to th...

Most of the time printing should be avoided as it can be a distraction (Out should be preferred). That is: a # Out: 1 is always better than print(a) # prints: 1 Prefer supporting python 2 and 3: print(x) # yes! (works same in python 2 and 3) print x # no! (python 2 only) print(x...

Cask is a project management tool which can be also used to easily manage your local emacs configuration. Installing cask is easy. You can either run the following command on the command-line: curl -fsSL https://raw.githubusercontent.com/cask/cask/master/go | python Or if you are on a mac, you...

There is a single assignment operator in VB. The equal sign = is used both for equality comparison and assignment. Dim value = 5 Notes Watch out for assignment vs. equality comparison. Dim result = leftValue = rightValue In this example you can see the equal sign being used as both a c...

// Get the battery API navigator.getBattery().then(function(battery) { console.log( "Battery will drain in ", battery.dischargingTime, " seconds" ); });

// Get the battery API navigator.getBattery().then(function(battery) { console.log( "Battery will get fully charged in ", battery.chargingTime, " seconds" ); });

DELIMITER $$ DROP PROCEDURE IF EXISTS sp_nested_loop$$ CREATE PROCEDURE sp_nested_loop(IN i INT, IN j INT, OUT x INT, OUT y INT, INOUT z INT) BEGIN DECLARE a INTEGER DEFAULT 0; DECLARE b INTEGER DEFAULT 0; DECLARE c INTEGER DEFAULT 0; WHILE a < i DO WHILE b <...

Fragments are reusable parts of lexer rules which cannot match on their own - they need to be referenced from a lexer rule. INTEGER: DIGIT+ | '0' [Xx] HEX_DIGIT+ ; fragment DIGIT: [0-9]; fragment HEX_DIGIT: [0-9A-Fa-f];

Functions within a class can be overloaded for when they are accessed through a cv-qualified reference to that class; this is most commonly used to overload for const, but can be used to overload for volatile and const volatile, too. This is because all non-static member functions take this as a hi...

Methods may declared as friends as well as functions: class Accesser { public: void private_accesser(); }; class PrivateHolder { public: PrivateHolder(int val) : private_value(val) {} friend void Accesser::private_accesser(); private: int private_value; }; void Access...

This is a protected and non-static method of the Object class. This method is used to perform some final operations or clean up operations on an object before it gets removed from the memory. According to the doc, this method gets called by the garbage collector on an object when garbage collecti...

Fast and short way to extract extension from file name in JavaScript will be: function get_extension(filename) { return filename.slice((filename.lastIndexOf('.') - 1 >>> 0) + 2); } It works correctly both with names having no extension (e.g. myfile) or starting with . dot (e.g. .h...