🚗 JavaScript Practice: Cars, Strings, Dates

1. Search Car with Capitalization

const arr = ['Mehran', 'Audi', 'V8', "Fx", "Foxi", "Khyber", "Alto"];
const car = prompt("Enter a car name:");
const formattedCar = car[0].toUpperCase() + car.slice(1).toLowerCase();
const check = arr.indexOf(formattedCar);
if (check === -1) {
  output.innerText = formattedCar + " not found";
} else {
  output.innerText = formattedCar + " found!";
}
  

Result here...

2. Replace 'and' with '&'

const msg = 'ali and shafi are best friends. they play football and cricket and fight';
output.innerText = msg.replaceAll('and', '&');
  

Result here...

3. Convert String to Number

const str = '372';
const num = Number(str);
output.innerText = "Type: " + typeof num + ", Value: " + num;
  

Result here...

4. Count Vowels & Consonants in "pakistan"

const str = 'pakistan';
let vowels = 0;
for (let i = 0; i < str.length; i++) {
  if (str[i] === 'a' || str[i] === 'i') vowels++;
}
const consonants = str.length - vowels;
output.innerText = "Vowels: " + vowels + ", Consonants: " + consonants;
  

Result here...

5. Type Coercion Example

let a = 5;
let result = a++ + 'hello';
output.innerText = result;
  

Result here...

6. Logical AND Evaluation

const result = 'sahi ans' && "false" && "0" && undefined;
output.innerText = result;
  

Result here...

7. Convert Number to String

let num = 19;
let str = num.toString();
output.innerText = "Type: " + typeof str + ", Value: " + str;
  

Result here...

8. Replace Last Digit "5" with "6"

let num = 15;
let str = num.toString();
if (str[str.length - 1] === '5') {
  str = str.slice(0, -1) + "6";
}
output.innerText = "New value: " + str + " (" + Number(str) + ")";
  

Result here...

9. Show Current Time

const now = new Date().toString();
output.innerText = now.slice(16, 24); // only time
  

Result here...