index.js

/*******************************************
    Iteration 1.1 | Tongue Twister
*******************************************/
const s1 = "Fred";
const s2 = "fed";
const s3 = "Ted";
const s4 = "bread";
const s5 = "and";

// Concatenate the string variables into one new string
const final=s1+' '+s2+' '+s3+' '+s4+' '+s5+ ' '+s3+' '+s2+' '+s1+' '+s4;

// Print out the concatenated string
console.log(final);



/*******************************************
    Iteration 1.2 | Camel Tail
*******************************************/
const part1 = "java";
const part2 = "script";

// Convert the last letter of part1 and part2 to uppercase and concatenate the strings

const up1 = part1.slice(0, -1) + part1.slice(-1).toUpperCase()+part2.slice(0, -1) + part2.slice(-1).toUpperCase();

// Print the cameLtaiL-formatted string
console.log(up1);



/*******************************************
    Iteration 2.1 | Calculate Tip
*******************************************/
const billTotal = 84;

// Calculate the tip (15% of the bill total)
const tip= billTotal*0.15; 

// Print out the tipAmount
console.log(`The tip is ${tip}€`);



/*******************************************
    Iteration 2.2 | Generate Random Number
*******************************************/

// Generate a random integer between 1 and 10 (inclusive)
const random=Math.floor(Math.random ()*10+1); 

// Print the generated random number
console.log(random)



/*******************************************
    Iteration 3.1 | Booleans
*******************************************/

const a = true;
const b = false;

// Try and guess the output of the below expressions first and write your answers down:
const expression1 = a && b; //false

const expression2 = a || b; //true

const expression3 = !a && b; //false

const expression4 = !(a && b); //true

const expression5 = !a || !b; //true

const expression6 = !(a || b); //false

const expression7 = a && a; //true