reference:https://stackoverflow.com/questions/1047454/what-is-lexical-scope First, lexical scope (also called static scope), in C-like syntax: highlighter- C++ void func() { int x = 5; return; void func2() { printf("%d\n", x); } } Every inner level can access its outer levels...
a local variable is declared within a specific scope, such as inside a function, and its lifespan is limited to that scope. a global variable, on the other hand, is declared outside any function and can be accessed from anywhere in the program. what is the purpose of the extern keyword...
Structured Query Language (SQL) is a standardized programming language that is used to managerelational databasesand perform various operations on the data in them. Initially created in the 1970s, SQL is regularly used not only by database administrators but also by developers writing data integratio...
Immediately Invoked Function Expressions (IIFE):IIFE is a self-invoked function defined and called immediately. It is typically used to create a private scope and avoid polluting the global namespace. For example: (function() { // code to be executed immediately })(); Higher-Order Functions:H...
What is closure in programming? Closure is a combination of a function and the environment in which it was created. It allows the function to access variables from its outer scope, even after the outer function has finished executing. Closures are often used for data encapsulation and creating ...
2. What’s the difference between coding and programming? In the previous section, we saw that the terms “coding” and “programming” can be used interchangeably. This is because both involve writing programs. The two terms, however, differ in terms of their scope. In addition to writing ...
Those extremes are outside the scope of this article. However, here are some important risks and concerns that business leaders implementing AI technology must understand so that they can take steps to mitigate any potential negative consequences. Trust and reliability: Generative AI models make ...
Traditional chatbots, depending on the platform or program being used, may be limited in their scope; however, a more advanced bot can be implemented as part of an omnichannel approach and used in practically all available lines of customer support. How fast does conversational AI have to be...
patterns and frameworks. Businesses also seek techniques to manage the complexity of systems as they increase in scope and scale. In particular, they recognize the need to solve recurring architectural problems, such as physical distribution, concurrency, replication, security, load balancing and fault...
Functional programming is a paradigm where the program is mainly an evaluation of (mathematical) functions, and is not through a series of defined steps that change the state of the program. Purely functional programs avoid the change of state (side effects) and mutable data. In Python, functio...