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[su_youtube url="https://youtu.be/JagMrQMvWBk" title="Queue"] [su_youtube url="https://youtu.be/9aqkEoJO65o" title="Types of Queue"] Queues What are queues? The queues are First in First out (FIFO) data structures Its the opposite of stacks The printer is the best example of a queue Doubly ended queues Its a data structure which is both First in First out…
[su_youtube url="https://youtu.be/KP8Lw2FD6x0" title="Stack"] Stacks What are stacks? The stacks are Last in First out (LIFO) data structures Stack is like a pile of plates In the beginning, the pile may be empty, but eventually, a plate can be added to the pile Only the most recently added plate can be…
[su_youtube url="https://youtu.be/yPV4TH45zFc" title="Linked List"] Linked list What is a linked list? Are container where data is stored in nodes The nodes consist single data item and pointer/reference to the next node What is a node? The node is nothing but a link in the linked list The node contains two…
Data structures and algorithms Course Overview: This course covers the concept of data structure and algorithms All data structures have been explained with introduction, advantages and disadvantages The good images have been attached for every chapter which makes it easy to understand the concepts The algorithms have been explained with…
[su_youtube url="https://youtu.be/dtyH9XW3VDI" title="Arrays"]What is an array? An array is a collection of data items These items are similar types An array can also be called a list Properties an array An array can contain a group of elements of a similar type Array elements are stored in contiguous memory blocks…
Nullish coalescing operator The nullish coalescing operator(??) is a logical operator Returns its right-hand side operand when its left-hand side operand is null or undefined, and otherwise returns its left-hand side operand const name = null ?? 'John'; console.log(name); // John
How to avoid common errors in Javascript Introduction Now we have learned about error types and how to debug the errors Now there is a standard way of coding which can help in avoiding most of the common error types like ReferenceError and TypeError Use try-catch block To avoid errors…
How to debug errors in the javascript Introduction Now we have learned what are error types in the javascript and where we can find the error details Now it’s a time to learn how to debug the errors When any error occurs in the application, the error details can be…
Module in JavaScript Introduction Is a reusable piece of code Modules are building blocks of any complicated Software Module encapsulates implementation details Modules can be imported Modules can be exported Modules are imported synchronously Example Create file index.html Create a file script.js Create a file auth.js //index.html <html> <body> <script…
Concurrency model & event loop in Javascript Key points The event loop is responsible for executing the code collecting and processing events and executing queued sub-tasks JS Runtime Concepts The following sections explain a theoretical model Modern JavaScript engines implement and heavily optimize the described semantics Call Stack: Where the…