MrCookiefries

Step One: Simplifying Expressions

Simplify the following big O expressions as much as possible

---

1. O(n + 10) -> O(n)

2. O(100 * n) -> O(n)

MrCookiefries

"""Python serial number generator."""

class SerialGenerator:
    """Machine to create unique incrementing serial numbers.
    
    >>> serial = SerialGenerator(start=100)

    >>> serial.generate()
    100

MrCookiefries

def any7(nums):
	"""Are any of these numbers a 7? (True/False)"""

	# YOUR CODE HERE
	for num in nums:
		if num == 7:
			return True
			
	return False

MrCookiefries

class Vehicle {
    constructor(make, model, year) {
        this.make = make;
        this.model = model;
        this.year = year;
    }

    honk() {
        return "Beep";
    }

MrCookiefries

const newSet = new Set([1,1,2,2,3,4]);
console.log(newSet);
// Set(4) {1, 2, 3, 4}

const newStr = [...new Set("referee")].join("");
console.log(newStr);
// "ref"

let m = new Map();
m.set([1,2,3], true);

MrCookiefries

// let facts = {
//     numPlanets: 8,
//     yearNeptuneDiscovered: 1846
// };
// let {
//     numPlanets,
//     yearNeptuneDiscovered
// } = facts;

// console.log(numPlanets);

MrCookiefries

function createInstructor(firstName, lastName) {
    return {
        firstName,
        lastName
    };
}

const favoriteNumber = 42;

const instructor = {

MrCookiefries

const filterOutOdds = (...nums) => (
    nums.filter(num => (num % 2))
);

const findMin = (...nums) => (
    Math.min(...nums)
);

const mergeObjects = (obj1, obj2) => (
    {...obj1, ...obj2}

MrCookiefries

// Old code
/*
function double(arr) {
    return arr.map(function(val) {
      return val * 2;
    });
}
*/

// New code

MrCookiefries

const PI = 3.14;
PI = 32; // Throws an error