Fundamentals of a computer/Limitation of a computer:

Computer can operate arithmetic operations 
Computer can store/transfer/remove data around the memory location. 
Computer can operate data through input and output
Computer can compare two things like true and false (Boolean) 
Computer can repeat the same job for many time...

Mohammad Towhidul Islam

18-Nov-24 06:24:28 pm

JavaScript Object Oriented Programming Fun

ball.js 
 
class Ball {
    //properties
    radius;
    color;
    x;
    y;
    speed;

    //constructor
    constructor(x, y, radius, color, speed) {
        this.x = x;
        this.y = y;
        this.radius = radius;
        this.color = color;
        this.speed = speed;
    }

    //fun...

Mohammad Towhidul Islam

18-Nov-24 02:14:37 pm

JavaScript setTimeout Example

document.addEventListener('DOMContentLoaded',(e)=>{  

      (function timer() {        
          setTimeout(function(){
            let min=1;
            let max=10;
            let rand=Math.floor(Math.random() * (max - min) ) + min;
            console.log(rand);
       ...

Mohammad Towhidul Islam

17-Nov-24 04:40:39 pm

OOP in JavaScript class with an example

Step 1 : Define a class name Ball

 
class Ball{  
  //properties
  //constructor
  //functions
}
 Step 2 : Add some ball properties in the class

 
class Ball{  

   //properties
   radius;
   color;
   x; 
   y;
   speed;

  //constructor

  //funct...

Mohammad Towhidul Islam

17-Nov-24 04:33:10 pm

Find the largest number among three numbers.

let a=parseFloat(prompt("Enter first number"));
 let b=parseFloat(prompt("Enter second number"));
 let c=parseFloat(prompt("Enter third number"));

if(a>b){
   
    if(a>c){
         document.write(a);
    }else{
         document.write(b);
    }

...

Mohammad Towhidul Islam

17-Nov-24 04:27:48 pm

Find largest number between two numbers

let a=parseFloat(prompt("Enter first value"));
 let b=parseFloat(prompt("Enter second value"));

   if(a>b){
     document.write(a);
  }else{
     document.write(b);
  }
  
 ...

Mohammad Towhidul Islam

07-Oct-24 05:08:46 pm

Sending asynchronous ajax request through Promise API in JavaScript

<script>
      //Show()
      //ajax1();

      async function Show(){
        let result= await fetch("data.txt");
        let r=await result.text();
        console.log(r);           
        document.body.textContent=r;
     }
    
     function ajax(){
        fet...

Mohammad Towhidul Islam

02-Dec-22 05:10:31 pm

Ajax Request with bearer Token

var url = "https://yourUrl";
var bearer = 'Bearer ' + bearer_token;
fetch(url, {
        method: 'GET',
        withCredentials: true,
        credentials: 'include',
        headers: {
            'Authorization': bearer,
            'X-FP...

Mohammad Towhidul Islam

13-Sep-21 09:55:58 am

Solve the following summation of series using JavaScript?

1=1
1+2=3
1+2+3=6
1+2+3+4=10
...
1+2+3+4+...+n=n*(n+1)/2

 
 <script>
  var n=6;
  for(i=1;i<=n;i++){   
      var total=0;
      for(j=1;j<=i;j++){
        document.write(j)
        if(j<i){            
         if(i!=1){  
            document.write("+"...

Mohammad Towhidul Islam

28-Feb-21 01:25:59 pm

Basic Email Validation with JavaScript

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
...

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