DEV Community: Mohammad Hafijul Islam

Day 1: Functions Solution

Mohammad Hafijul Islam — Sat, 03 Aug 2024 08:13:04 +0000

Task

Implement a factorial function with one parameter: an integer, n. It must return the value of n! (i.e., n factorial).

Constraints

1 ≤ n ≤ 10

Input Format

Locked stub code in the editor reads a single integer, n, from stdin and passes it to a factorial function.

Output Format

The function must return the value of n!.

Sample

Input

Output

Explanation

We return the value of 4! = 4x3x2x1 = 24.

Solution

Functions

Connect

LinkedIn | GitHub

Day 1: Arithmetic Operators Solution

Mohammad Hafijul Islam — Sat, 03 Aug 2024 08:02:14 +0000

Task

Write two function for the following instructions:

getArea(length, width): Calculate and return the area of a rectangle having sides length and width.
getPerimeter(length, width): Calculate and return the perimeter of a rectangle having sides length and width.

The values returned by these functions are printed to stdout by locked stub code in the editor.

Constraints

1 ≤ length, width ≤ 1000
length and width are scaled to at most three decimal places.

Input Format

getArea(length, width):

Data Type	Parameter	Description
`Number`	*length*	A number denoting the length of rectangle.
`Number`	*width*	A number denoting the width of rectangle.

getPerimeter(length, width):

Data Type	Parameter	Description
`Number`	*length*	A number denoting the length of rectangle.
`Number`	*width*	A number denoting the width of rectangle.

Output Format

Function	Return Type	Description
`getArea(length, width)`	`Number`	The area of a rectangle having sides *length* and *width*.
`getPerimeter(length, width)`	`Number`	The perimeter of a rectangle having sides *length* and *width*.

Sample

Input

3
4.5

Output

13.5
15

Explanation

The area of the rectangle is length x width = 3 x 4.5 = 13.5.
The perimeter of the rectangle is 2 x (length + width) = 2 x (3 + 4.5) = 15.

Solution

Arithmetic Operators

Connect

LinkedIn | GitHub

Day 0: Data Types Solution

Mohammad Hafijul Islam — Sat, 13 Jul 2024 13:54:26 +0000

Task

Variables named firstInteger, firstDecimal , and firstString are declared for you in the editor below. You must use the + operator to perform the following sequence of operations:

Convert secondInteger to an integer (Number type), then sum it with firstInteger and print the result on a new line using console.log.
Convert secondDecimal to a floating-point number (Number type), then sum it with firstDecimal and print the result on a new line using console.log.
Print the concatenation of firstString and secondString on a new line using console.log. Note that firstString must be printed first.

Constraint

Input Format

Data Type	Parameter	Description
`string`	*secondInteger*	The string representation of an integer you must sum with *firstInteger*.
`string`	*secondDecimal*	The string representation of a floating-point number you must sum with *firstDecimal*.
`string`	*secondString*	A string of one or more space-separated words you must append to *secondString*.

Output Format

Print the following three lines of output:

On the first line, print the sum of firstInteger and the integer representation of secondInteger.
On the second line, print the sum of firstDecimal and the floating-point representation of secondDecimal.
On the third line, print firstString concatenated with secondString. You must print before secondString.

Sample

Input

12
4.32
is the best place to learn and practice coding!

Output

16
8.32
HackerRank is the best place to learn and practice coding!

Explanation

When we sum the integers 4 and 12, we get the integer 16.
When we sum the floating-point numbers 4.0 and 4.32, we get 8.32. When we concatenate HackerRank with is the best place to learn and practice coding!, we get HackerRank is the best place to learn and practice coding!.

Solution

Data Types

Connect

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Day 0: Hello, World! Solution

Mohammad Hafijul Islam — Thu, 11 Jul 2024 19:44:12 +0000

Statement

A greeting function is provided for you in the editor below. It has one parameter, parameterVariable. Perform the following tasks to complete this challenge:

Task

Use console.log() to print Hello, World! on a new line in the console, which is also known as stdout or standard output. The code for this portion of the task is already provided in the editor.
Use console.log() to print the contents of parameterVariable (i.e., the argument passed to main).

Constraint

Input Format

Data Type	Parameter	Description
`string`	*parameterVariable*	A single line of text containing one or more space-separated words.

Output Format

Print the following two lines of output:

On the first line, print Hello, World! (this is provided for you in the editor).
print the contents of parameterVariable on the second line.

Sample

Input

Welcome to 10 Days of JavaScript!

Output

Hello, World!
Welcome to 10 Days of JavaScript!

Explanation

We printed two lines of output:

We printed the literal string Hello, World! using the code provided in the editor.
The value of parameterVariable passed to our main function in this sample case was Welcome to 10 Days of JavaScript!. We then passed our variable to console.log(), which printed the contents of parameterVariable.

Solution

Hello World!

Connect

LinkedIn GitHub

Laravel SMS Channels

Mohammad Hafijul Islam — Sun, 07 Apr 2024 11:44:18 +0000

I am very excited to share an open-source laravel package named "Laraflow/SMS". A library of SMS channel collections ready for production on the laravel application.

Features of the package

Doesn't depend on bulky third-party libraries; the program can grow with your project.
Capability to swap drivers without impacting the code
The developer can add their channel to the configuration file to expand the collection.

Right now, We have integrated these SMS gateway APIs

AfricasTalking
Clickatell
ClickSend
Infobip
MessageBird
SMSBroadcast
Telnyx
Twilio

For whom this package is appropriate

Desire to finish the assignment quickly
Not a full library is needed; just a basic API integration is desired.
Have the option of regularly switching SMS vendors

Packagist Link: Packagist

Documentation Link: Documentation

Having someone interested in reviewing my implementation or contribution to the codebase would appreciated.