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Performance, Security, and Speed: Best Practices for Efficient JavaScript DOM Manipulation

By Md Shoriful Islam
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  The Document Object Model (DOM) is the cornerstone of modern, interactive web development. It provides a programming interface that allows JavaScript to interact with the structure, style, and content of a web page, transforming static HTML documents into dynamic applications [1] [2]. Understanding how to manipulate the DOM efficiently is not just a best practice; it is a necessity for building high-performance, smooth user experiences [6]. This article serves as a comprehensive guide, covering the fundamental techniques for selecting and modifying elements, as well as advanced strategies for optimizing performance and ensuring code quality. Part 1: The Fundamentals of DOM Manipulation The DOM represents the HTML document as a hierarchical tree of objects, where each HTML tag, attribute, and piece of text is a node [2]. To begin manipulating this structure, the first step is always to gain a reference to the desired element. Selecting Elements: Modern vs. Traditional Methods Hist...
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12 Best Websites to Practice Coding for Beginners

By Md Shoriful Islam
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COURSES LOCATIONS CAREER SERVICES ABOUT US ENTERPRISE RESOURCES APPLY NOW 12 Best Websites to Practice Coding for Beginners Posted by Flatiron School  /  August 16, 2021 Facebook Twitter Email Share Learning to code has become one of the most essential skills for people entering the tech industry — but where do you start if you don’t already know how? There are plenty of places to practice coding for beginners, so find out the best and jump right in. READING TIME 6 MINS Indeed’s “ Best Jobs of 2020 ” ranked America’s most highly prized careers based on demand, pay, and potential for growth. Some of these included: software architect (1), full-stack developer (2), Java developer (6), data scientist (7), and IT security specialist (9). That means that of the top ten best jobs in America, half of them required coding skills. ‌ But, if you don’t have coding skills, where do you go to learn them? Some may turn to their local library, and others may have the time and money...
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Using Generic in TypeScript about types in the Code

By Md Shoriful Islam
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# Using Generic in TypeScript about types \<T> in the Code ## Question 1: Here what is this <T> means? ```typescript const addID = <T>(obj: T) => {   let ID = Math.floor(Math.random() * 100);   return ({...obj, ID}); } ``` ## Answer 1: In the code snippet you've provided, `<T>` is a **generic type parameter** in TypeScript. It allows you to write a function that can work with any type of object while still maintaining that object's specific type information. When you use the function `addID`, you can pass in an object of any type, and TypeScript will understand that the returned object will be of the same type as the input, plus the additional `ID` property. Here's a breakdown of how it works: ```typescript const addID = <T>(obj: T) => {   let ID = Math.floor(Math.random() * 100);   return ({...obj, ID}); } ``` - `<T>`: Declares a generic type `T`. - `(obj: T)`: Indicates that the function takes an argument `obj` of type `T`....
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Usage of Common “Header files” in C programming

By Md Shoriful Islam
  Each of these header files serves a specific purpose in a C program: stdio.h : This header file stands for "standard input-output header" and provides functions for input and output operations such as  printf()  and  scanf() . stdlib.h : It stands for "standard library" and provides functions such as memory allocation ( malloc() ,  calloc() ,  free() ), random number generation ( rand() ,  srand() ), and other utility functions. string.h : This header file provides functions for manipulating strings such as  strcpy() ,  strcat() ,  strlen() , etc. conio.h : This header file provides functions mainly for console input and output operations in DOS and Windows environments. Functions like  getch()  and  clrscr()  are included in this header file. However, note that it's not a standard C library and is often not available in many modern compilers or platforms. time.h : This header file provides functions to work with da...
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