Tutorial by Topics: se

ParameterDetailscompletionHandlerA block that has no return value and takes the following parameters:accountStatusThe status of the current user’s iCloud account.errorAn error object or nil if the status is determined successfully. Use the information in the error object to determine whether the pr...

Union types are used in several languages, notably C-language, to contain several different types which can "overlap" in the same memory space. In other words, they might contain different fields all of which start at the same memory offset, even when they might have different lengths an...

This example has a datepicker for the 'Start Date', an input for the 'Duration' (in weeks) and a second datepicker that is disabled for user input as it is updated on change of either the first datepicker or the duration inputs.

Cassandra security resources CQL: Database roles syntax definition CQL: List of object permissions DataStax Documentation: Internal authentication DataStax Documentation: Internal authorization

Promises have state, they start as pending and can settle to: fulfilled meaning that the computation completed successfully. rejected meaning that the computation failed. Promise returning functions should never throw, they should return rejections instead. Throwing from a promise returnin...

Promise.all( Iterable<any> | Promise<Iterable<any>> input ) -> Promise This method is useful for when you want to wait for more than one promise to complete. Given an Iterable(arrays are Iterable), or a promise of an Iterable, which produces promises (or a mix of promi...

These are two sample programs that work together. One is a simple server, the other a simple client. Start the server in one window: python tserver.py Edit the server address in the client source file if desired. Then run python tclient.py The client connects to the server, then asks for i...

Sqoop incremental import comes into picture because of a phenomenon called CDC i.e. Change Data Capture. Now what is CDC? CDC is a design pattern that captures individual data changes instead of dealing with the entire data. Instead of dumping our entire database, using CDC, we could capture ju...

ParameterUsagehostnameThis parameter tells the host to which the connection needs to be establishedusernameusername required to access the hostporthost portpasswordpassword for the account

Binary tree is a tree that each node in it has maximum of two children. Binary search tree (BST) is a binary tree which its elements positioned in special order. In each BST all values(i.e key) in left sub tree are less than values in right sub tree.

When we analyze the performance of the sorting algorithm, we interest primarily on the number of comparison and exchange. Average Exchange Let En be the total average number of exchange to sort array of N element. E1 = 0 (we do not need any exchange for array with one element). The average num...

ser.read(size=1) ser.readline() ser.write() parameterdetailsportDevice name e.g. /dev/ttyUSB0 on GNU/Linux or COM3 on Windows.baudratebaudrate type: int default: 9600 standard values: 50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, 4800, 9600, 19200, 38400, 57600, 11520...