Ben Turner - V School | Better Humans, Better Outcomes (Page 2)

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Ben Turner

Web developer and teacher of all things logic. In a past life I was a Vulcan.

Every and Some

Write two functions that mimic the .every and .some array methods. every(arr, callback): Given an array and a callback function, return true or false based on whether each element of the array, when inserted as a parameter to the callback, returns true. Example: every([1,2,"3"], (num)=>{ return

Deploying Static and Node Applications with Zeit Now

Deploying Static and Node Applications with Zeit Now

This lesson has been adapted from Mykola Bilokonsky Documentation can be found HERE About Zeit Now Up until now you've been running your projects from your own server on localhost. Now is a node package that lets you deploy static websites and node applications to a remote server, which allows

Frame It

Warm-Up Given a string of any length, write a function that "frames" it in a multi-dimensional array. For example: frameIt("pic"); //returns [ [*,*,*,*,*], [*,p,i,c,*], [*,*,*,*,*] ]

Longest Substring

Warm-Up Write a JavaScript function to find the longest substring in a given a string without repeating characters. Example: longestSub("happy"); //returns "hap"

Adjacent Difference

Adjacent Difference

Given an array of strings, find the 3 adjacent elements with the longest combined length. Return them in the form of an array. Example function combined(arr){ // Find the 3 adjacent elements with longest combined length } combined(["this", "is", "an", "array"]) // Output: ["is", "an", "array"] // they have the longest combined

Check Data Types

Given a multi-dimensional array containing only primitive data types (strings, booleans, and numbers), write a function that returns whether EACH element within each subarray belongs to the same data type. for example: function checkTypes(arr) { // Code here } const multiD1 = [[1,2,3],["a","b","c"],[true, true, true]] checkTypes(multiD1)

Validate IP Address

Warm-Up An IP address is a numerical label assigned to each device (e.g., computer, printer) participating in a computer network that uses the Internet Protocol for communication. There are two versions of the Internet protocol, and thus two versions of addresses. One of them is the IPv4 address. IPv4

Factor Count

Warm-Up Given a positive integer n write a function that returns how many unique factors it has. If it only has two (n itself and 1) return "prime". example: factorCount(4); //returns 3 (1, 2, and 4 are factors of 4) factorCount(3); //returns "prime"

Multiplication Table

Multiplication Table

Warm up Write a function that returns a 10 X 10 multiplication table (2D array). For example: multTable(); // Output: // [ // [1,2,3,4,5...], // [2,4,6,8,10...], // [3,6,9,12,15...], // ... // ] BONUS: Allow for the function to take a parameter n and return a table with n

Algorithms as Tools For Solving Problems Pt. 2

We left off last time with the realization that our word-finding algorithm was too slow for large inputs. We can improve its performance by minimizing the number of page turns required to find a word. Amazingly, using binary search we can reduce the runtime from O(n) to O(logN)

Algorithms As Practical Tools for Solving Problems Pt. 1

Algorithms As Practical Tools for Solving Problems Pt. 1

An algorithm is just a set of instructions that tell a computer how to solve a problem. Our job as programmers is to write algorithms that solve problems efficiently. Part one discusses the relationship between time, memory, input, and output in the context of designing algorithms. Computer problems often take

Catch Me If you Can

1a) Write a function that returns the sum of two numbers. Throw an error if either argument is not of the data type number: function sum(x, y){ //check data types first and throw error return x + y; } 1b) Call the sum function inside a try block using "1" and