Tutorial by Topics: co

Git's reflog records the position of HEAD (the ref for the current state of the repository) every time that it is changed. Generally, every operation that might be destructive involves moving the HEAD pointer (since if anything is changed, including in the past, the tip commit's hash will change)...

History The Symantec JIT compiler was available in the Sun Java from 1.1.5 onwards, but it had problems. The Hotspot JIT compiler was added to Sun Java in 1.2.2 as a plugin. In Java 1.3, JIT was enabled by default. (Source: When did Java get a JIT compiler?

Dependencies: If application uses third party libraries or cocoa pods, then those libraries or pods are needed to be install for test as well. Test class (Test Suit) extends XCTestCase. Get brushed up before starting: All test classes have two methods in common setUp & tearDown. ...

long_cmd & jobs fg %JOB_ID fg %?PATTERN fg %JOB_ID

Fresco is a powerful system for displaying images in Android applications. In Android 4.x and lower, Fresco puts images in a special region of Android memory (called ashmem). This lets your application run faster - and suffer the dreaded OutOfMemoryError much less often. Fresco also supports strea...

Practical examples of using Roslyn for source code transformations. Roslyn syntax trees are immutable. By calling a method like ReplaceNodes we generate a new node rather than modifying the existing one. This requires you to always change the object you have been working on.

FTPClient connect(InetAddress host, int port) FTPClient login(String username, String password) FTPClient disconnect() FTPReply getReplyStrings() boolean storeFile(String remote, InputStream local) OutputStream storeFileStream(String remote) boolean setFileType(int fileType) boolean complet...

decorator(name, decorator); Decorator is function that allow a service, factory, directive or filter to be modified prior to its usage. Decorator is used to override or modify the behavior of the service. The return value of the decorator function may be the original service, or a new ...

To make your APK file as small as possible, you should enable shrinking to remove unused code and resources in your release build.

A list comprehension is a syntactical tool for creating lists in a natural and concise way, as illustrated in the following code to make a list of squares of the numbers 1 to 10: [i ** 2 for i in range(1,11)] The dummy i from an existing list range is used to make a new element pattern. It is used...

The Unity Container (Unity) is a lightweight, extensible dependency injection container. It facilitates building loosely coupled applications and provides developers with the following advantages: Simplified object creation, especially for hierarchical object structures and dependencies. [https://...

target_compile_features(target PRIVATE|PUBLIC|INTERFACE feature1 [feature2 ...])

If you want to offer suggestions to the user when they type in an editable text field, you can use an AutoCompleteTextView. It provides suggestions automatically when the user is typing. The list of suggestions is displayed in a drop down menu from which the user can select one to replace the cont...