Tutorial by Topics: es

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.

Trees are a sub-category or sub-type of node-edge graphs. They are ubiquitous within computer science because of their prevalence as a model for many different algorithmic structures that are, in turn, applied in many different algorithms

The function parse convert text and files into expressions. The function eval evaluate expressions.

Regular expressions (also called "regex" or "regexp") define patterns that can be matched against a string. Type ?regex for the official R documentation and see the Regex Docs for more details. The most important 'gotcha' that will not be learned in the SO regex/topics is that mo...

Pester is a test framework for PowerShell that allows you to run test cases for you PowerShell code. It can be used to run ex. unit tests to help you verify that your modules, scripts etc. work as intended. What is Pester and Why Should I Care?

PowerShell modules bring extendibility to the systems administrator, DBA, and developer. Whether it’s simply as a method to share functions and scripts. Powershell Functions are to avoid repitetive codes. Refer [PS Functions][1] [1]: PowerShell Functions PowerShell Scripts are used for automating...

Examples work as of three.js R79 (revision 79).

Special Characters *?+[(){}^$|\./

collectgarbage(gcrule [, gcdata]) -- collect garbage using gcrule setmetatable(tab, {__mode = weakmode}) -- set weak mode of tab to weakmode parameterdetailsgcrule & gcdataAction to gc (garbage collector): "stop" (stop collecting), "restart" (start collecting again),...

Creating a document in which you have to switch between styles frequently tends to be tedious in iText 5. You need to create a lot of Chunk objects and you always have to make a trade-off between applying the styles directly to every new Chunk or creating a helper method that creates the Chunk for...

The iText 5 class names PdfPTable and PdfPCell were chosen because we already had classes named Table and Cell to create table and cell objects at the highest programming level. There was also a class named PdfTable to be used by iText internally. Those classes had a lot of flaws and they were dep...

The Codeigniter Sessions class uses browser cookies to save data that will persist across multiple page loads. Reference: https://codeigniter.com/user_guide/libraries/sessions.html

LAPIC registerAddress (Relative to APIC BASE)Local APIC ID Register+20hSpurious Interrupt Vector Register+0f0hInterrupt Command Register (ICR); bits 0-31+300hInterrupt Command Register (ICR); bits 32-63+310h In order to access the LAPIC registers a segment must be able to reach the address range ...

Google Cloud Messaging: Overview Google Cloud Messaging (GCM) is a free service that enables developers to send messages between servers and client apps. This includes downstream messages from servers to client apps, and upstream messages from client apps to servers. For example, a lightweight d...