Tutorial by Examples: re

You may want to do this if the remote repository is migrated. The command for changing the remote url is: git remote set-url It takes 2 arguments: an existing remote name (origin, upstream) and the url. Check your current remote url: git remote -v origin https://bitbucket.com/develop/myrep...

If we have a c++ project that uses a config.h configuration file with some custom paths or variables, we can generate it using CMake and a generic file config.h.in. The config.h.in can be part of a git repository, while the generated file config.h will never be added, as it is generated from the cu...

Basic foreground images can be inserted into an email document just like they are for web pages: <img src="http://www.yourserver.com/email/images/logo.png"> And they can be made links by wrapping them in an <a href> tag: <a href="http://www.yourwebsite.com"&gt...

Here is a very simple example of a function that "promises to proceed when a given time elapses". It does that by creating a new Deferred object, that is resolved later and returning the Deferred's promise: function waitPromise(milliseconds){ // Create a new Deferred object using th...

Correlated (also known as Synchronized or Coordinated) Subqueries are nested queries that make references to the current row of their outer query: SELECT EmployeeId FROM Employee AS eOuter WHERE Salary > ( SELECT AVG(Salary) FROM Employee eInner WHERE eInner.Dep...

The example reads the first line from a file. It uses an instance of BufferedReader to read data from the file. BufferedReader is a resource that must be closed after the program is finished with it: static String readFirstLineFromFile(String path) throws IOException { try (BufferedReader br = n...

The following example shows other ways you can use the underscore in numeric literals: long creditCardNumber = 1234_5678_9012_3456L; long socialSecurityNumber = 999_99_9999L; float pi = 3.14_15F; long hexBytes = 0xFF_EC_DE_5E; long hexWords = 0xCAFE_BABE; long maxLong = 0x7fff_ffff_ffff_ffffL;...

You can use Map<String, List<String>> myMap = new HashMap<>(); instead of Map<String, List<String>> myMap = new HashMap<String, List<String>>(); However, you can't use List<String> list = new ArrayList<>(); list.add("A"); ...

// Takes a callback and executes it with the read value def readFile(path: String)(callback: Try[String] => Unit): Unit = ??? readFile(path) { _.flatMap { file1 => readFile(path2) { _.foreach { file2 => processFiles(file1, file2) }} }} The function argument to readFile is...

If shift is called outside of a delimiting reset block, it can be used to create functions that themselves create continuations inside a reset block. It is important to note that shift's type is not just (((A => B) => C) => A), it is actually (((A => B) => C) => (A @cpsParam[B, C])...

Not everything in a bindings library will have the same name in C# as it does in Java. In C#, interface names start with "I", but Java has no such convention. When you import a Java library, an interface named SomeInterface will become ISomeInterface. Similarly, Java doesn't have propert...

For simple cases, you can filter data directly. a = np.random.normal(size=10) print(a) #[-1.19423121 1.10481873 0.26332982 -0.53300387 -0.04809928 1.77107775 # 1.16741359 0.17699948 -0.06342169 -1.74213078] b = a[a>0] print(b) #[ 1.10481873 0.26332982 1.77107775 1.16741359 0.176999...

In order to create a workspace, one should run the following in the terminal: $ mkdir -p ~/workspace_name/src $ cd ~/workspace_name/src $ catkin_init_workspace $ cd ~/workspace_name/ $ catkin_make The previous commands creates a workspace named workspace_name. Once a workspace has been creat...

Assuming a workspace named workspace_name has been previously created in the home directory, a package named package_name can be created by executing the following command lines. $ cd ~/workspace_name/src/ $ catkin_create_pkg package_name rospy

A statement is usually a test on a variable or the return value of a function. To test those values, we can use some relational operators: OperatorMeaningExample==Equal to1 == 1 is TRUE, 1 == 2 is FALSE!=Not equal to1 != 2 is TRUE, 1 != 1 is FALSE<Less than1 < 2 is TRUE, 2 < 1 is FALSE>...

std::integer_sequence itself is about holding a sequence of integers which can be turned into a parameter pack. Its primary value is the possibility to create "factory" class templates creating these sequences: #include <iostream> #include <initializer_list> #include <uti...

NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration]; AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration]; NSURL *URL = [NSURL URLWithString:@"http://example.com/upload"]; NSURLRequest *r...

import AlamofireImage Alamofire.request("https://httpbin.org/image/png").responseImage { response in debugPrint(response) print(response.request) print(response.response) debugPrint(response.result) if let image = response.result.value { print(&quot...

NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST" URLString:@"http://example.com/upload" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) { [formData appendPartWithFileURL:[NSURL ...

This example shows how to hide a "Date" field from the SharePoint list view using CSR. (function () { function RemoveFields(ctx) { var fieldName = "Date"; // here Date is field or column name to be hide var header = document.querySelectorAll("[d...