The Path To Discover Excellence.

Thursday, 24 December 2020

December 24, 2020

Why is JavaScript so popular? What can you do with it?

When the Internet spread in the nineties, technology companies struggled to create the most powerful and efficient web browsers on the market. It launched the first "browser war" between Microsoft (Internet Explorer) and Netscape (Netscape Navigator) to establish a partnership for the use of web browsers.

Netscape requires a lightweight scripting language for easy programming that ultimately makes web development more accessible, unlike other languages ​​that require deep language training. In 1995, Netscape employee Brendon Ich was given ten days to help build the company's lightweight scripting language. As a result, Ich created Mocha, which was later renamed JavaScript. The moral of the story - JavaScript was never intended to be the standard language of the web! However, with the victory of the Netscape browser battle, the popularity of JavaScript grew. More and more sites started using JavaScript and most of the developers who did not eventually use JavaScript to create websites.

JavaScript is now an essential web technology supported by major web browsers by the language is extremely important for anyone who wants to be a web developer. Many experts agree that JavaScript will continue to grow as an essential language for web development.

Sunday, 6 December 2020

December 06, 2020

What is an IDE?


What is an IDE?

An IDE, or Integrated Development Environment, enables programmers to consolidate the different aspects of writing a computer program.

IDEs increase programmer productivity by combining common activities of writing software into a single application: editing source code, building executables, and debugging.

Editing Source Code

Writing code is an important part of programming. We start with a blank file, write a few lines of code, and a program is born! IDEs facilitate this process with features like syntax highlighting and autocomplete.

Syntax Highlighting

An IDE that knows the syntax of your language can provide visual cues. Keywords, words that have special meaning like class in Java, are highlighted with different colors.

Saturday, 7 November 2020

November 07, 2020

Object-Oriented Programming Defined

In object-oriented programming, concepts are modeled as classes and objects. An idea is defined using a class, and an instance of this class is called an object. Almost everything in Python is an object, including strings, lists, dictionaries, and numbers. When we create a list in Python, we’re creating an object which is an instance of the list class, which represents the concept of a list. Classes also have attributes and methods associated with them. Attributes are the characteristics of the class, while methods are functions that are part of the class.


Friday, 6 November 2020

November 06, 2020

Introduction To Web Development Coursera | Week 6


                            WEEK 6 Quiz module

                        ANSWERS ARE MARKED WITH correct SIGN.

1. Question 1 One of the main features of server side development is



None of these


Databases Correct 

2. Question 2 Which of these is not a client side technology?

PHP Correct 





3. Question 3 What can be said about a while loop? (Select all that apply.)

The perform actions repetitively until complete Correct 

They often use a loop counter Correct 

All of these are correct

They are mainly used for writing vertical text

4. Question 4 When we are working with characters in a string we refer to them by number:

The numbering starts at 1

The numbering starts at 0 Correct 

None of these

The numbering starts at 0, but only in JavaScript

We can start with any number

5. Question 5 What operator do programmers frequently use to add 1 to a variable i?



i + I;

i++; Correct 

i = I + 1;

6. Question 6 In programming languages we will often work with collections of things. Which of the following could be considered a collection? (Select all that apply.)

A form

The elements of a form Correct 

The letters that make up a string Correct 

All of these are correct

A string

7. Question 7 The two most common loops we see in JavaScript are

None of these

for and for each

repeat and go

while and for Correct 

do and while

8. Question 8 What is true about loops in programming languages? (Select all that apply.)

Multiple kinds of loops is a convenience Correct 

For and while loops are the least common

We need many kinds of loops to be effective

We really only need one kind of loop Correct 

9. Question 9 Which of these are recommended to improve your Web development and programming skills? (Select all that apply.)

Imitating other people’s software is a waste of time

It’s best to focus on your code and ignore what others are doing

Imitate other software as a way to learn and practice Correct 

It pays to be curious about other people software and features Correct 

10. Question 10 What is the recommended approach to problems?

Tackle medium and large problems because they build skill faster

Break problems down into their smallest parts Correct 

Avoid problems and move on to something easier.

None of these

11. Question 11 What can we say about continuing to learn about Web development?

Teaching others can lead to them stealing your best ideas

It’s best to work and communicate with others Correct 

It’s best to work alone so you can concentrate

Teaching others is a distraction that limits your learning

12. Question 12 What are the recommendations for working on your final project? (Select all that apply.)

None of these

Think about the purpose of your form before you start Correct 

All of these are true

Start with a very basic CSS file and get that working first Correct 

Avoid starting with a template

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November 06, 2020

Python Lists and Tuples Operations Cheat Sheet

Lists and Tuples Operations Cheat Sheet

Lists and tuples are both sequences, so they share a number of sequence operations. But, because lists are mutable, there are also a number of methods specific just to lists. This cheat sheet gives you a run down of the common operations first, and the list-specific operations second.

Common sequence operations

  • len(sequence) Returns the length of the sequence
  • for element in sequence Iterates over each element in the sequence
  • if element in sequence Checks whether the element is part of the sequence
  • sequence[i] Accesses the element at index i of the sequence, starting at zero
  • sequence[i:j] Accesses a slice starting at index i, ending at index j-1. If i is omitted, it's 0 by default. If j is omitted, it's len(sequence) by default.
  • for index, element in enumerate(sequence) Iterates over both the indexes and the elements in the sequence at the same time

Check out the official documentation for sequence operations.

List-specific operations and methods

  • list[i] = x Replaces the element at index i with x
  • list.append(x) Inserts x at the end of the list
  • list.insert(i, x) Inserts x at index i
  • list.pop(i) Returns the element a index i, also removing it from the list. If i is omitted, the last element is returned and removed.
  • list.remove(x) Removes the first occurrence of x in the list
  • list.sort() Sorts the items in the list
  • list.reverse() Reverses the order of items of the list
  • list.clear() Removes all the items of the list
  • list.copy() Creates a copy of the list
  • list.extend(other_list) Appends all the elements of other_list at the end of list

Most of these methods come from the fact that lists are mutable sequences. For more info, see the official documentation for mutable sequences and the list specific documentation.

List comprehension

  • [expression for the variable in sequence] Creates a new list based on the given sequence. Each element is the result of the given expression.
  • [expression for the variable in sequence if condition] Creates a new list based on the given sequence. Each element is the result of the given expression; elements only get added if the condition is true.
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