number-exercises.js

//Currency formatter

const formatCurrency = amount => {
    if (!Number.isFinite(amount)) return "Invalid Amount"; 
    return `${amount.toFixed(2)}`
}

console.log(formatCurrency(12.3456))     //1234
console.log(formatCurrency(Infinity))

//Safe division

const safeDivide = (a, b) => {
    a = a ?? 0;     // nullish coalescing operator
    b = b ?? 1; 

    return (b == 0) ? Infinity : a / b; 
    
}

console.log(safeDivide(10, 2)); 
    console.log(safeDivide(10, 0)); 
    console.log(safeDivide(null, 2)); 

//Random Hex Color Generator

const getRandomHexColor = () => {
    const color = Math.floor(Math.random() * (0xFFFFFF + 1)).toString(16).padStart(6, '0')
    return `#${color}`
}

console.log(getRandomHexColor())
console.log(getRandomHexColor())
console.log(getRandomHexColor())
console.log(getRandomHexColor())
console.log(getRandomHexColor())