Skip to content
loading...

Daily Challenge #38 - Middle Name

thepracticaldev profile image dev.to staff twitter logo ・1 min read

Daily Challenge (246 Part Series)

1) Daily Challenge #1 - String Peeler 2) Daily Challenge #2 - String Diamond 3 ... 244 3) Daily Challenge #3 - Vowel Counter 4) Daily Challenge #4 - Checkbook Balancing 5) Daily Challenge #5 - Ten Minute Walk 6) Daily Challenge #6 - Grandma and her friends 7) Daily Challenge #7 - Factorial Decomposition 8) Daily Challenge #8 - Scrabble Word Calculator 9) Daily Challenge #9 - What's Your Number? 10) Daily Challenge #10 - Calculator 11) Daily Challenge #11 - Cubic Numbers 12) Daily Challenge #12 - Next Larger Number 13) Daily Challenge #13 - Twice Linear 14) Daily Challenge #14 - Square into Squares 15) Daily Challenge #15 - Stop gninnipS My sdroW! 16) Daily Challenge #16 - Number of People on the Bus 17) Daily Challenge #17 - Double Trouble 18) Daily Challenge #18 - Triple Trouble 19) Daily Challenge #19 - Turn numbers into words 20) Daily Challenge Post #20 - Number Check 21) Daily Challenge #21 - Human Readable Time 22) Daily Challenge #22 - Simple Pig Latin 23) Daily Challenge #23 - Morse Code Decoder 24) Daily Challenge #24 - Shortest Step 25) Daily Challenge #25 - Double Cola 26) Daily Challenge #26 - Ranking Position 27) Daily Challenge #27 - Unlucky Days 28) Daily Challenge #28 - Kill the Monster! 29) Daily Challenge #29 - Xs and Os 30) Daily Challenge #30 - What is the price? 31) Daily Challenge #31 - Count IPv4 Addresses 32) Daily Challenge #32 - Hide Phone Numbers 33) Daily Challenge #33 - Did you mean...? 34) Daily Challenge #34 - WeIrD StRiNg CaSe 35) Daily Challenge #35 - Find the Outlier 36) Daily Challenge #36 - Let's go for a run! 37) Daily Challenge #37 - Name Swap 38) Daily Challenge #38 - Middle Name 39) Daily Challenge #39 - Virus 40) Daily Challenge #40 - Counting Sheep 41) Daily Challenge #41 - Greed is Good 42) Daily Challenge #42 - Caesar Cipher 43) Daily Challenge #43 - Boardgame Fight Resolver 44) Daily Challenge #44 - Mexican Wave 45) Daily Challenge #45 - Change Machine 46) Daily Challenge #46 - ??? 47) Daily Challenge #47 - Alphabets 48) Daily Challenge #48 - Facebook Likes 49) Daily Challenge #49 - Dollars and Cents 50) Daily Challenge #50 - Number Neighbor 51) Daily Challenge #51 - Valid Curly Braces 52) Daily Challenge #52 - Building a Pyramid 53) Daily Challenge #53 - Faro Shuffle 54) Daily Challenge #54 - What century is it? 55) Daily Challenge #55 - Building a Pile of Cubes 56) Daily Challenge #56 - Coffee Shop 57) Daily Challenge #57 - BMI Calculator 58) Daily Challenge #58 - Smelting Iron Ingots 59) Daily Challenge #59 - Snail Sort 60) Daily Challenge #60 - Find the Missing Letter 61) Daily Challenge #61 - Evolution Rate 62) Daily Challenge #62 - Josephus Survivor 63) Daily Challenge #63- Two Sum 64) Daily Challenge #64- Drying Potatoes 65) Daily Challenge #65- A Disguised Sequence 66) Daily Challenge #66- Friend List 67) Daily Challenge #67- Phone Directory 68) Daily Challenge #68 - Grade Book 69) Daily Challenge #69 - Going to the Cinema 70) Daily Challenge #70 - Pole Vault Competition Results 71) Daily Challenge #71 - See you next Happy Year 72) Daily Challenge #72 - Matrix Shift 73) Daily Challenge #73 - ATM Heist 74) Daily Challenge #74 - Free Pizza 75) Daily Challenge #75 - Set Alarm 76) Daily Challenge #76 - Bingo! (or not...) 77) Daily Challenge #77 - Bird Mountain 78) Daily Challenge #78 - Number of Proper Fractions with Denominator d 79) Daily Challenge #79 - Connect Four 80) Daily Challenge #80 - Longest Vowel Change 81) Daily Challenge #81 - Even or Odd 82) Daily Challenge #82 - English Beggars 83) Daily Challenge #83 - Deodorant Evaporator 84) Daily Challenge #84 - Third Angle of a Triangle 85) Daily Challenge #85 - Unwanted Dollars 86) Daily Challenge #86 - Wouldn't, not Would. 87) Daily Challenge #87 - Pony Express 88) Daily Challenge #88 - Recursive Ninjas 89) Daily Challenge #89 - Extract domain name from URL 90) Daily Challenge #90 - One Step at a Time 91) Daily Challenge #91 - Bananas 92) Daily Challenge #92 - Boggle Board 93) Daily Challenge #93 - Range Extraction 94) Daily Challenge #94 - Last Digit 95) Daily Challenge #95 - CamelCase Method 96) Daily Challenge #96 - Easter Egg Crush Test 97) Daily Challenge #97 - Greed is Good 98) Daily Challenge #98 - Make a Spiral 99) Daily Challenge #99 - Balance the Scales 100) Daily Challenge #100 - Round Up 101) Daily Challenge #101 - Parentheses Generator 102) Daily Challenge #102 - Pentabonacci 103) Daily Challenge #103 - Simple Symbols 104) Daily Challenge #104 - Matrixify 105) Daily Challenge #105 - High-Sum Matrix Drop 106) Daily Challenge #106 - Average Fuel Consumption 107) Daily Challenge #107 - Escape the Mines 108) Daily Challenge #108 - Find the Counterfeit Coin 109) Daily Challenge #109 - Decorate with Wallpaper 110) Daily Challenge #110 - Love VS. Friendship 111) Daily Challenge #111 - 99 Bottles of Beer 112) Daily Challenge #112 - Functions of Integers on the Cartesian Plane 113) Daily Challenge #113 - Iterative Rotation Cipher 114) Daily Challenge #114 - Speed Control 115) Daily Challenge #115 - Look and Say Sequence 116) Daily Challenge #116 - Shortest Knight Path 117) Daily Challenge #117 - MinMinMax 118) Daily Challenge #118 - Reversing a Process 119) Daily Challenge #119 - Adding Big Numbers 120) Daily Challenge #120 - Growth of a Population 121) Daily Challenge #121 - Who has the most money? 122) Daily Challenge #122 - Clockwise Spirals 123) Daily Challenge #123 - Curry me Softly 124) Daily Challenge #124 - Middle Me 125) Daily Challenge #125 - 23 Matches or More 126) Daily Challenge #126 - The Supermarket Line 127) Daily Challenge #127 - Playing with Passphrases 128) Daily Challenge #128 - Blackjack Scorer 129) Daily Challenge #129 - Clay Pigeon Shooting 130) Daily Challenge #130 - GCD Sum 131) Daily Challenge #131 - Remove Anchor from URL 132) Daily Challenge #132 - Is my friend cheating? 133) Daily Challenge #133 - Suitcase Packing 134) Daily Challenge #134 - Rice and Chessboard Problem 135) Daily Challenge #135 - The Wide Mouthed Frog! 136) Daily Challenge #136 - The Deaf Rats of Hamelin 137) Daily Challenge #137 - Help the Bookseller 138) Daily Challenge #138 - Do I get a Bonus? 139) Daily Challenge #138 - Keep Up the Hoop 140) Daily Challenge #140 - I love you, a little, a lot, passionately ... not at all 141) Daily Challenge #141 - Two Sum 142) Daily Challenge #142 - Parts of a Whole 143) Daily Challenge #143 - Big Arithmetic 144) Daily Challenge #144 - Box Office Clerk 145) Daily Challenge #145 - SET Card Game 146) Daily Challenge #146 - The Dollar Game 147) Daily Challenge #147 - NIM 148) Daily Challenge #148 - Disemvowel Trolls 149) Daily Challenge #149 - Fun with Lamps 150) Daily Challenge #150 - Boggle Guess Validator 151) Daily Challenge #151 - Reverse Parentheses 152) Daily Challenge #152 - Strongest Number in an Interval 153) Daily Challenge #153 - Horse Race Gamble 154) Daily Challenge #154 - Stable Arrangement 155) Daily Challenge #155 - Royal Arranged Marriages 156) Daily Challenge #162 - Taxi Dispatching 157) Daily Challenge #163 - Significant Figures 158) Daily Challenge #164 - Jump 159) Daily Challenge #165 - Password Lost in a Grid 160) Daily Challenge #166 - Cat and Mouse 161) Daily Challenge #167 - Return String As Sorted Blocks 162) Daily Challenge #168 - [Code golf] f (f (f b)) = f b 163) Daily Challenge #169 - Christmas Tree 164) Daily Challenge #170 - Pokemon Damage Calculator 165) Daily Challenge #171 - Ordering Beers in Poland 166) Daily Challenge #172 - Find All in an Array 167) Daily Challenge #173 - Pandemia 168) Daily Challenge #174 - Soccer League Table 169) Daily Challenge #175 - Complementary DNA 170) Daily Challenge #176 - Loopover 171) Daily Challenge #177 - Supersize Me 172) Daily Challenge #178 - Create Phone Numbers 173) Daily Challenge #179 - Hide Phone Numbers 174) Daily Challenge #180 - SMS Shortener 175) Daily Challenge #181 - Is King in Check? 176) Daily Challenge #182 - Arrh, grabscrab! 177) Daily Challenge #183 - Automorphic Numbers 178) Daily Challenge #184 - Form the Minimum 179) Daily Challenge #185 - House Numbers Sum 180) Daily Challenge #186 - Jumping Frog 181) Daily Challenge #187 - Most Sales 182) Daily Challenge #188 - Break camelCase 183) Daily Challenge #189 - Convert Number into Reversed Array 184) Daily Challenge #190 - capitalizeFirstLast 185) Daily Challenge #191 - Alphabetical Addition 186) Daily Challenge #192 - Can you Survive the Zombies? 187) Daily Challenge #193 - What's the Real Floor? 188) Daily Challenge #194 - Spread Number 189) Daily Challenge #195 - No Zeroes for Heroes 190) Daily Challenge #196 - Flou 191) Daily Challenge #197 - Population Growth 192) Daily Challenge #198 - 21 Blackjack 193) Daily Challenge #199 - List of All Rationals 194) Daily Challenge #200 - Longest Linear Palindromic Substring 195) Daily Challenge #201 - Complete the Pattern 196) Daily Challenge #202 - Complete the Pattern II 197) Daily Challenge #203 - Pascal's Triangle 198) Daily Challenge #204 - Partial Keys 199) Daily Challenge #205 - Consonant String Value 200) Daily Challenge #206 - Pound Means Backspace 201) Daily Challenge #207 - Snakes and Ladders 202) Daily Challenge #208 - Delete Occurrences of an Element 203) Daily Challenge #209 - Roman Numerals 204) Daily Challenge #210 - Separate Capitalization 205) Daily Challenge #211 - Product Partitions 206) Daily Challenge #212 - DNA to RNA 207) Daily Challenge #213 - Are they the "same"? 208) Daily Challenge #214 - Persistent Bugger 209) Daily Challenge #215 - Difference of 2 210) Daily Challenge #216 - Rainfall 211) Daily Challenge #217 - SMS w/ an Old Phone 212) Daily Challenge #218 - Possible Sides of a Non-Right Triangle 213) Daily Challenge #219 - Compare Strings 214) Daily Challenge #220 - What Dominates Your Array? 215) Daily Challenge #221 - The Merchant of York 216) Daily Challenge #222 - Parse Bank Account Numbers 217) Daily Challenge #223 - Responsible Drinking 218) Daily Challenge #224 - Password Validator 219) Daily Challenge #225 - Square'n'Sum 220) Daily Challenge #226 - Array to HTML Table 221) Daily Challenge #227 - Android Lock Screen 222) Daily Challenge #228 - Best Profit in Single Sale 223) Daily Challenge #229 - Haiku Validator 224) Daily Challenge #230 - Beeramid 225) Daily Challenge #231 - Perfect Powers 226) Daily Challenge #232 - Regex Pattern 227) Daily Challenge #233 - Get Planet Name by ID 228) Daily Challenge #234 - Happy Birthday! 229) Daily Challenge #235 - Reversing a Process 230) Daily Challenge #236 - RGB to Hex Conversion 231) Daily Challenge #237 - Delete Extra Occurrences 232) Daily Challenge #238 - One is the Loneliest Number 233) Daily Challenge #239 - Graceful Tipping 234) Daily Challenge #240 - ATM 235) Daily Challenge #241 - Tip Calculator 236) Daily Challenge #242 - Expressions Matter 237) Daily Challenge #243 - Redacted! 238) Daily Challenge #244 - Search for Letters 239) Daily Challenge #245 - Sort Santa's Reindeer 240) Daily Challenge #246 - Readable Specification Pattern 241) Daily Challenge #247 - Get Planet Name By ID 242) Daily Challenge #248 - Chinese Numerals 243) Daily Challenge #249 - Incremental Changes 244) Daily Challenge #250 - Last Digit of a Large Number 245) Daily Challenge #251 - Largest Number in a Sequence 246) Daily Challenge #252 - Everybody hates Mondays

Your challenge today is to initialize an individual's middle name (if there is any).

Example:
'Jack Ryan' => 'Jack Ryan'
'Lois Mary Lane' => 'Lois M. Lane'
'Dimitri' => 'Dimitri'
'Alice Betty Catherine Davis' => 'Alice B. C. Davis'

Good luck!


This challenge comes from manonacodingmission on CodeWars. Thank you to CodeWars, who has licensed redistribution of this challenge under the 2-Clause BSD License!

Want to propose a challenge for a future post? Email yo+challenge@dev.to with your suggestions!

twitter logo DISCUSS (18)
Discussion
markdown guide
 

CSS

/* the first letter of each word will have a regular size */
.mn span::first-letter {
  font-size: 1rem;
} 

/* the words in the middle (not first or last) will have a font-size of 0 */
.mn span:not(:first-child):not(:last-child) {
  font-size: 0;
  display: inline-block;
}

/* add a . at the end of each shortened word */
.mn span:not(:first-child):not(:last-child)::after {
  content: ".";
  font-size: 1rem;
}

Wrap each word in a span, and add the class "mn" to the container.
Live demo on CodePen.

 

I also did a JavaScript version on that same demo:

const middleName = name => name.split(' ')
                               .map((val, idx, arr) => idx == 0 || idx == arr.length - 1 
                                                        ? val 
                                                        : val[0] + ".")
                               .join(' ');
 

If you select-and-copy the names, the full name is copied instead of the shortened one.

 

Ruby solution

I just changed a few things in a similar function from singl.page. Doesn’t use join(). Works when only a single name is provided.

def middle_names(fullname)
  String.new.tap { |result|
    fullname.split(' ').then { |words|
      words.map.with_index { |word, i|
        case i
        when 0
          result << word.capitalize
        when words.length - 1
          result << ' '
          result << word.capitalize
        else # middlename
          result << " #{word[0].upcase}."
        end
      }
    }
  }
end
 

Not the best solution: ))

function findMiddleName(str) {
    const words = str.split(' ');
  let result = '';
  if(words.length <= 2)
    return result = str
   else{
   let middleNames = ''
   for(let i = 1; i < (words.length - 1); i++)
    middleNames += (words[i].slice(0,1) + '. ') 
    return result = `${str.split(' ')[0]} ${middleNames}${str.split(' ')[words.length - 1]}`
   }
}

console.log(findMiddleName('Jack Ryan'));
console.log(findMiddleName('Lois Mary Lane'));
console.log(findMiddleName('Dimitri'));
console.log(findMiddleName('Alice Betty Catherine Davis'));
 

PHP Solution

<?php

 $fullName = $argv[1];
 $components = explode(' ', $fullName);
 for ($i=1; $i<= count($components) - 2; $i++) {
     $components[$i] = strtoupper($components[$i][0]) . '.';
 }

 echo implode (' ', $components);
 

Python

def initialize_names(name):
    name= name.split(' ')
    if len(name) <=2:   return ' '.join(name)
    new_name=[]
    for i in range(len(name)):
        if i != 0 and i != (len(name)-1):    new_name.append(name[i][0]+'.')
        else:   new_name.append(name[i])
    return ' '.join(new_name)
 

Python.

I had two attempts at this, my first was only for full names up to three words but after realising I needed to expand the program to work on more I rewrote the program. Both and posted below and annotated.

First attempt

def initialize(full_name):
  names = full_name.split()
  num_names = len(names)
  if num_names == 3:
    Middle_initial = names[1]
    print(names[0],Middle_initial[0],".",names[2])
  elif num_names <=2:
    print(names[0],names[1])
  else:
    print("Compatability for names of 4 or more has not been added.")
full_name = input("Full Name: ")
if not full_name == "":
  initialize(full_name)

Second Attempt

def initialize(full_name):
  start = 1
  names = full_name.split()
  num_names = len(names)
  if num_names >= 3:
    answer = ""
    change = num_names-1
    while not start == change:
      a = names[start]
      a = a[0]
      start = start + 1
      answer = answer + a.upper() + "."
    print(names[0],answer,names[num_names-1])
  else: print(full_name)
full_name = input("Full Name: ")
if not full_name == "":
  initialize(full_name)

I wasn't too happy on the result,
Any pointers on how to I could improve my code would be great!

 

But ey it works,

Python 3.7.4 (default, Jul  9 2019, 00:06:43)
[GCC 6.3.0 20170516] on linux
Full Name: Ben Dark Aye Daggity do yee Dover
Ben D.A.D.D.Y. Dover

😁..I am uh, very, mature.

 
def initialize(full_name):
    names = full_name.split()
    return ' '.join(
        f'{name[0]}.' if index > 0 and index < len(names) - 1 else name
        for index, name in enumerate(names)
    )
 
def initializeName(name: str):
    name = name.split(" ")
    if (len(name) >= 3):
        #loop from first name to last name.
        for i in range(1, len(name)-1):
            name[i] = name[i][0] + "."
    name = ' '.join(name)
    return name
 
const initializeMiddleNames = (name) => {
    const nameArr = name.split(' ')
    for (let index = 1; index < nameArr.length -1; index++) {
        nameArr[index] = `${nameArr[index].substring(0, 1)}.`;
    }
    return nameArr.join(' ') 
}


initializeMiddleNames('Jack Ryan') // Jack Ryan
initializeMiddleNames('Lois Mary Lane') // Lois M. Lane
initializeMiddleNames('Dimitri') // Dimitri
initializeMiddleNames('Alice Betty Catherine Davis') // Alice B. C. Davis

 

Javascript

This was fun :)

const initialiseMiddleNames = (fullName) => {
  const names = fullName.split(' ')
  if (names.length <= 2) return fullName

  const firstName = names.shift()
  const lastName = names.pop()
  const initials = names.map(name => name.charAt(0))

  return `${firstName} ${initials.join('. ')}. ${lastName}`
}

initialiseMiddleNames('Jack Ryan') // Jack Ryan
initialiseMiddleNames('Lois Mary Lane') // Lois M. Lane
initialiseMiddleNames('Dimitri') // Dimitri
initialiseMiddleNames('Alice Betty Catherine Davis') // Alice B. C. Davis
 

Here's mine, with a more functional approach - also takes into account name strings that have erroneous spaces

jsbin.com/gedejih/edit?js,console

function formatName(name) {
    /* Trim out any spaces at the beginning or end,
     * split the name into segments,
     * and filter out empty strings. */
  const splitName = name
    .trim()
    .split(' ')
    .filter(n => n.length > 0)

  return splitName.map((namePart, index) => {
    /* Return the first and last names as they are */
    if (index === 0 || index === splitName.length - 1) return namePart

    /* Otherwise, get the first character,
     * make sure it is capitalized,
     * and return it with a `.` */
    return `${namePart[0].toUpperCase()}.`

  }).join(' ')
}


const formattedNames = names.map(formatName) 
 

ruby <3

def initialize_middle_name(n)
  n.split.then { |f, *mid, l| [f, *mid.map { @1.upcase[0] + ?. }, *l].join ' ' }
end
 

My solution in js

const initialize = (fullname) => fullname.split(' ').map((name, index, names) => (index === 0 || index === names.length - 1) ? name : `${name[0]}.`).join(' ');
 

Python :

def middle_name(full_name):
    names = full_name.split(' ')
    return ''.join([name + ' ' if i == 0 or i == len(names)-1 else name[0]+'. ' for i, name in enumerate(names)])
 
Classic DEV Post from Aug 4 '19

You're not worth hiring unless...

dev.to staff profile image
The hardworking team behind dev.to ❤️