code-wars

These are my codewars solutions!

This is mainly an exercise in journaling my progress, but feel free to follow along :)

UPDATE: In the process of comparing using a README.md verses a JS file for note taking

8kyu

Multiplication table for number - 8kyu

Description

Your goal is to return multiplication table for number that is always an integer from 1 to 10.

Solution

const multiTable = (number) => {
  let table = '';
  
  for(let i = 1; i <= 10; i++) {
    table += `${i} * ${number} = ${i * number}${i < 10 ? '\n' : ''}`; 
  }

  return table;
}

Solution 2 - refactored

const multiTable = n => ([1,2,3,4,5,6,7,8,9,10].map(i=>`${i} * ${n} = ${i*n}`)).join('\n')

Sort and Star

Description

You will be given a vector of strings. You must sort it alphabetically (case-sensitive, and based on the ASCII values of the chars) and then return the first value.

The returned value must be a string, and have "***" between each of its letters.

Solution

function twoSort(s) {
    return s.sort()[0].split('').join('***');
}

Is there a vowel in there?

Description

Given an array of numbers, check if any of the numbers are the character codes for lower case vowels (a, e, i, o, u).

If they are, change the array value to a string of that vowel.

Return the resulting array.

Solution

function isVow(a){
  return a.map(a => (a == 101 || a == 117 || a == 97 || a == 105 || a == 111) ? String.fromCharCode(a) : a);
}

Solution 2 - refactored

function isVow(a){
return  a.map(
    charCode =>
      /[aeiou]/.test(String.fromCharCode(charCode))
        ? String.fromCharCode(charCode)
        : charCode)}