
What is DOM?
DOM stands for Document Object Model. The DOM defines standards for accessing documents. It is standardized by W3C (World Wide Consortium). The DOM is a Platform and Programming language independent interface.
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DOM stands for Document Object Model. The DOM defines standards for accessing documents. It is standardized by W3C (World Wide Consortium). The DOM is a Platform and Programming language independent interface.
Everything in JavaScript happens inside an Execution Context also known as Global Context. You can assume this Execution Context as a container inside which whole the JavaScript code is executed.
A variable declared at the top of a program or outside a function is considered a global scope variable. The value of a global variable can be changed inside a function. It is a good practice to avoid using global variables.
Datatypes are the foundational topic of any programming language. Datatype specifies which type of data a language can store and process. Primitive types are Pass by Value. This behaviour is called Pass by Value because you are passing a copy of the value to the function.
When you pass primitive data types (such as numbers, strings, or booleans) to a function, a copy of the actual value is passed. Changes made to that variable inside the function do not affect the original variable outside the function.
API stands for Application Programming Interface. The concept of API was developed to establish Secure, Scalable, and Easy Data Transfer between two systems. We can distribute APIs based on their architecture. API architecture defines rules for data sharing.