codewithhemu

What are first-class functions?

August 16, 2025

In programming, first-class functions (also called first-class citizens) mean that functions are treated like any other value. In languages that...

What is the difference between typeof and instanceof?

August 16, 2025

The difference between typeof and instanceof in JavaScript is subtle but very important. Let’s break it down clearly: 1. typeof...

What are template literals in JavaScript?

August 16, 2025

Template literals in JavaScript are a way to create strings that allow embedded expressions, multi-line strings, and string interpolation. They...

What is undefined and null in JavaScript?

August 16, 2025

In JavaScript, undefined and null are two distinct types that represent the absence of a value, but they are used...

What is the difference between template hierarchy and page templates?

August 16, 2025

1. Template Hierarchy 2. Page Templates Key Differences Feature Template Hierarchy Page Templates Control Automatic, built-in system Manual assignment by...

add_action(),remove_action(), add_filter(),do_action()

August 16, 2025

Actions: perform tasks. Filters: modify data before output. 1. add_action() Purpose: Attach a function to a specific action hook so...

What is the difference between get_template() and get_stylesheet()?

August 16, 2025

1. get_template() Example: If your parent theme folder is my-parent-theme, it will return that regardless of a child theme being...

Understanding PHP Static Methods and Static Classes

August 15, 2025

PHP is a versatile language that supports both object-oriented programming (OOP) and procedural paradigms. One of the key OOP features...

What is the difference between GET and POST methods?

August 15, 2025

Here’s a clear and detailed explanation of the difference between GET and POST methods in HTTP: Feature GET POST Purpose...

What are superglobals in PHP? List some examples.

August 15, 2025

In PHP, superglobals are built-in variables that are always accessible, regardless of scope—meaning you can access them inside functions, classes,...