Forem: Akash

Scenario Questions-variables,operators,functions,conditional statement.

Akash — Sat, 18 Apr 2026 15:57:32 +0000

11.Function to calculate total amount

output:

12.Function to greet user

output:

13.To convert Celsius to Fahrenheit

output:

14.Create a function that returns largest of two numbers

output:

Conditional statement

output:

17.Check if number is positive,negative or zero

output:

18.Check if a year is leap year

output:

19.Movie ticket pricing

output:

20.Print grade using condition

output:

Using function to calculate EMI for a loan(TBD)

Solving Scenario Questions-2

Akash — Fri, 17 Apr 2026 19:22:59 +0000

1.Storing variables and checking whether its filled

output:

2.Create variable to store product name,cost,stocks

OUTPUT:

3.Calculating Total

OUTPUT:

4.Swapping Two Numbers

OUTPUT:

5.Creating variable to store user logging

OUTPUT:

Checking a numb even or odd by operator

OUTPUT:

7.Comparing two passwords

OUTPUT:

8.Eligible to vote,write condition

OUTPUT:

9.Using logical AND operator

OUTPUT:

Solving Objects&Array Scenario Question

Akash — Thu, 16 Apr 2026 16:54:28 +0000

1.USER PROFILE UPDATE

By Using create update email and adding new property . OUTPUT:

2.SHOPPING CART TOTAL
*By using map() separating price values in another array and using reduce() to find total value

OUTPUT:

3.FIND SPECIFIC OBJECT

By Using filter() finding user whose name is Arun

OUTPUT:

4.ADD ITEMS TO ARRAY

by using push() adding another product dynamically and using filter() removing shoe and returning only items with price>1000.

OUTPUT:

JavaScript Array Iterations Methods

Akash — Wed, 15 Apr 2026 17:10:34 +0000

*Array Iteration Methods can be classified into following types

1.Array forEach

forEach () calls a function once for each array element. (e.g)

OUTPUT:
0
1
2
3
4
Here Callback function runs 5 times(for each value function runs)to execute code.

2.Array map()

Map() creates new array by callback function without replacing original array it clones the array
Map() returns value (e.g)

OUTPUT:[30,9,15,21,18]

3.Array flat map()

flat map() is used to expanding elements ,maps all elements of array and creates new array (e.g)

OUTPUT:[1,10,2,20,3,30,4,40,5,50]

4.Array filter()

filter() used to create new array by passing test by condition . (e.g)

OUTPUT:[50,48,70]

5.Array reduce()

reduce() used to produce single value by running each elements in array
It runs from left to right. (e.g)

OUTPUT:31

6.Array reduceRight()

reduceRight() is also used to produce single value by running every elements in array
Only difference is it runs from right to left
Looks similar to reduce() (e.g)

OUTPUT:30

7.Array every()

every() checks if all array elements get pass
If even single element get fail the result get false. (e.g) OUTPUT: False

8.Array some()

Some() checks if some array value get pass
If even a single element get pass result is true (e.g)

OUTPUT: TRUE

9.Array.from()

Array.from() used to convert from string to array (e.g)

OUTPUT:['A','K','A','S','H']

10.ArraySpread()

spread() used to combine two different array (e.g)

OUTPUT: [1,2,3,4,5,6]

*11. ArrayRest()
**Rest() is used to collect remaining elements of array into nee array
(e.g)

OUTPUT:[3,4,5]

12.Arraywith()

with() used to update elements in array without changing the original array. (e.g)

OUTPUT: [ 'Akash', 'mani', 'surya', 'sharma']

*13.Array keys() [Tbd]
14.Array entries() [Tbd]
*

Java script is Single_Threaded

Akash — Tue, 14 Apr 2026 14:32:27 +0000

JavaScript is a single-Threaded language why because it execute only one code at a time no parallel execution by default
Without finish or executing a code it never moves to another

=> Justify why JS is Single Threaded

To keep the language simple and efficient JavaScript was made single threaded
Demerit of single threaded is long running task can block the execution of other code,other script pages will not run until it completes it execution
Whereas JS is single threaded and synchronous the browser environment or node.js makes it to behave like asynchronous
Only ( Browser or node .js ) make js to behave like Multi-threaded and asynchronous
Thats why we writing non blocking code and also asynchronous code even though JS runs in one thread.
If the main loop is blocked no other code is executed it blocks code being executed.

=> Let Clarify the Synchronous and Asynchronous

1. Synchronous

Code runs line by line ,each line waits for another line to execute code

(e.g) Imagine biriyani is being cooked without rice we can't move for another process,without chicken we can't move to preparing biriyani .once each and every things is ready then it comes under odred in process of making.

2. Asynchronous

In this case code does not wait for one line to get execute ,it moves and come back when it done ,which means easy code runs quicker it comes first and complicated code will take time to execute after executing it comes under process.

(e.g) In hotel whose order is simple and easy to make will serve first and whose bit more take time to be done will get later

JS is naturally synchronous single threaded and synchronous but (Browser and Node.js) makes it to behave like asynchronous.
For solving Asynchronous difficulties JS has callback function,promises, Async
- In callback function once the code is ready callback used to executing the code.

:- Above content refered in LinkedIn,reddit.

Software Testing

Akash — Sun, 12 Apr 2026 03:47:29 +0000

Today I learn some basics about software testing,procedures of software testing,what are the tools using for software testing .
Testing is nothing but Meeting client's requirements.
Also learned abbreviation for some tech terms
I learn basics of manual testing

=> MANUAL TESTING

manual testing is done by testing a software without any tools it done manually
Verifying application by executing scenarios and comparing results

Manual testing classified into two types

    1. Functional Testing
    2. Non-Functional Testing

FUNCTIONAL TESTING

Testing a software by its given requirements
Testing is done only when it meets customer's requirements
It ensures input ,output behaviour.

NON-FUNCTIONAL TESTING

Checking whether its is functionally right or not
Testing performance
Checking is application is secure and user friendly.

SOFTWARE DEVELOPMENT LIFECYCLE

Requirements gathering
Planning
Designing
Development
Testing(Integration testing,unit testing,system testing)
Releasing .

ABBREVIATION TERMS

SSL-Secured socket layer
FLP-File transfer protocal
SMTP-Simple mail transfer protocol
TCP-Transmission control protocol
UDP-User datagram protocol
DNS-Domain name server
URL-Uniform resource locator
BRS-Business requirement specification
FRS-Function requirement specification

DIFFERENCE BETWEEN INSTALLATION AND DEPLOYMENT

=> INSTALLATION

It is setting up software in specific device as local or server.
Ensures software can run on host system
It includes configuring files and settings
It often requires user interaction for custom settings
Easy to process

=> DEPLOYMENT

It is a broader process for making software access across multiple system or enviroinment
Ensuring end to end users can access or using application
utilizes automation tools
Requires network configuration ,database setup and testing across devices
More complex often automated

:- The content of installation and deployment is referred in linkedin

Simple Revision of JS

Akash — Thu, 09 Apr 2026 14:51:37 +0000

1.What is java script ?

It is high level programming language
It is also a scripting language
Used to make webpages dynamic
Used to built websites and web applications

2. Datatypes in JS?

Datatypes in javascript can be classified into 2 types

Primitive datatype
Non-Primitive datatype

Primitive datatype

*string
Denotes wordings
(E.g)"Akash","mohandass"

*number
Denotes number
(E.g) 1,2,3,4,5

*big int
Denotes large value
(E.g) 600654789

*boolean
Denotes True or False
(E.g) 10=10 Result:True

symbol
Denotes Symbols
(E.g) %,<,>,,/

*Null
Denotes No value

*undefined
Denotes variable is there but no value is assigned

*NAN
Denotes value representing Not A Number

Non-primitive datatype

1.Function

Function is a reusable code of block
It includes set of informations
Function means Activity

OUTPUT:BEST OF LUCK AKASH

2.Array

Array is used to store a multiple values in single container
Array stores value using[]

OUTPUT:60

3.Object

Object is a collection of key values
Object declare values by {}
It includes state and behaviour
Object contains another object

OUTPUT: RX100

DIFFERENCE BETWEEN PRIMITIVE AND NON-PRIMITIVE DATATYPE

=>Variables in JS

Older Javascript To Declare variable use var(not recommended )
Modern Javascript To Declare variable use 1.let 2.const (Mostly Recommended) *If you don't need to change the value of variable use const

OUTPUT=13

Var is used before 2015
Let and const used later 2015
Variables are label for data values

BLOCK SCOPE:Can change fir functional scope
FUNCTION SCOPE: Not change for Block scope

Also maintain scope inside function

Above contents referred in MDN and W3 School.

Basic Array Methods in JS

Akash — Wed, 08 Apr 2026 20:39:27 +0000

Basic Array methods in java script are
Array length
Array to string()
Array at()
Array join()
Array pop()
Array push()
Array shift()
Array unshift()
Array is Array()
Array delete()
Array concat()
Array copywithin()
Array flat()
Array slice()
Array splice()
Array to spliced()

EXPLANATION:

1.Array length

It returns a length of an array and also used to set length of array

OUTPUT=3
2.Array to string()

To string methods is used to join multiple string in array as single string with comma .

OUTPUT= Rx100,RE Duke

3.Array at()

At is used to returns the indexed element

OUTPUT:RE

4.Array join()

This method used to join all elements into string

OUTPUT=RX100*Re*Duke

5.Array pop()
*This method is used to remove last element from array

OUTPUT:["Rx100","Re"]

6.Array push ()

This method used a add a new element at the end in array .

OUTPUT=["Rx100","RE","Duke","Jawa"]

7.Array shift()

This method removes the first element in array and remains other elements in ordered index

OUTPUT=["Re","Duke","jawa"]

8.Array unshift()

This method is used to add new elements in beginning of array and remains other elements in uppercase ordered index

OUTPUT=["Dukati","Rx100","RE","Duke","Jawa"]

9.Array is Array()

This method is used to define wether the given array is array of string or number
It denotes true or false

OUTPUT:True

10. Array delete()

This method is used to delete element in array by index and it remains a deleted space undefined.

OUTPUT=["Rx100","Duke","Jawa"]

11.Array concat()

This method is used to create new array by already existing 2 different arrays

OUTPUT=["Rx100","RE","Duke","Jawa","Bmw","Tesla"]

12.Array Flat

This method is used to create a single array with sub arrays like concat method

OUTPUT =[2,5,1,7,1,2]

13. Array splice

This method used to add new elements to array

First parameter (2) denotes where the value store,and second parameter(0) denotes how many elements should be removed OUTPUT =[apple","mango","kiwi","grape","orange"]

14. Array slice

This method is used to slice a element from array from accurate index number

OUTPUT=[Lemon","Apple","Mango"]

Constructor Function ,Methods in JS

Akash — Tue, 07 Apr 2026 16:46:57 +0000

Constructor function is usually started with capital letter
It used with new keyword
It helps to create object without repeating code

(e.g)
function Bike(model,price,colour)
{
this.model=model;
this.price=price;
this.colour=colour;
console.log(this.bike1.colour);
console.log(this.bike2.model);

}
const bike1=new bike("RX 100",100000,"black");
const bike2=new bike("Royal Enfield",200000,"grey");

OUTPUT:Black
Royal Enfield

EXPLANATION:

Declaring function() bike
In construction function this is used as a keyword for identifying specific value
Declaring values for function
print a needed variable using this (this is used for indicating particular function)

ARRAY SPECIFICATIONS

Array includes
Elements
Objects
Zero Indexed
Dynamic size
Ordered

METHODS IN ARRAY(TBD)

Array push * Array flat
Array length * Array slice
Array shift * Array splice
Array unshift * Array join
Array delete
Array concat

RETURN STATEMENT

By returning value to function we can use the same value in multiple function
we can use a return statement in anytime
usefull for looping

(e.g)

function multiply(a,b)
{
return a*b;
}
let sum = multiply(10,7);
console.log(sum)

OUTPUT: 70

Object in JavaScript

Akash — Mon, 06 Apr 2026 16:58:58 +0000

Object used to store multiple values in single container
Object is a physical Entity
It contains in formations,properties and key values
To differentiate object and property we can use . operator
Also object contains State and behaviour
Object contains another object in nested way

(e.g)

const bike={
Brand:"Yamaha Rx 100",
Colour : "Black",
price:1,00000
}
console.log(Bike.price);
Output:1,00000

Explanation

In this type bike is a object,Brand ,colour ,price are keys for object and Yamaha Rx 100,Black,1,00000 are values.
To print a bike price declare function and call price
This print a bike's price

NESTED OBJECT:

const Samsung={
mobile: "S 23 ultra",
price: 1,00000,
colour:"black",
camera:{
rear:{
mp:"50 mp"
}
front:{
mp:"22 mp"
}
},
checking camera mp.function(){
console.log(samsung.camera.rear);
}
};

OUTPUT:50 mp

This is how nested objects works and execute

Adding a value in object
let student={
name:"Akash",
age:22,
weight:"62 kilogram"
};
student.age=23;
console.log(student.age);

OUTPUT:23

Deleting a Value in object
let student={
name:"Akash",
age:22,
weight:"62 kilogram"
};
delete student.weight;
console.log(student);

OUTPUT:
{name:"Akash",age:22}

Functions in JAVASCRIPT

Akash — Mon, 06 Apr 2026 08:39:51 +0000

Function includes set of instructions
Function is a block of code performs is a specific task to avoid rewriting code again and again
It is easy to reuse
Function has parameter and return value (e.g) function Make Biriyani ( Rice,chicken ) { Console.log (" chicken Biriyani"); }

EXECUTION:-

1.Declare function and and give parameters( rice and chicken)
2.store the given things in function
3.And print result

NOTES :

Arguments in function are very flexible
If javascript called missing arguments it remains undefined
Returning function to use a same value to write a same code again and again
We can call the same function multiple times
Variables inside a function cannot be used outside of function

(TBD)
Function in python
Function in Java
Function in react

Student Categorization in Javascript using Array

Akash — Thu, 02 Apr 2026 16:45:10 +0000

const marks=[60,80,31,58,92]
1.declare variables
let i=0;
let fail count=0
let total=0
let avg=0

2.Declare condition while(i<=4) and if(marks[i]<35)
3.post increment fail count
4.post increment i
5.Add condition to check if(fail count>0) 6.print ("NO GRADE")
7.Add while condition to find total while(i<=4) i=0 total=mark[i]+total
8.Avg= total/no of subject
9.If avg>=90 print(A) if avg>80 and avg<90 print(B) if avg>70 and avg<80 print(C) if avg>50 and avg<70 print(D) else print(E)

FLOWCHART FOR EXECUTION

CODE: