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HTML

              
                
              
            
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CSS

              
                
              
            
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JS

              
                console.clear();

/*
-----------------------------------------
6kyu Extract last names of people named Michael
-----------------------------------------

Given a text, for example:

const inputText = "Michael, how are you? - Cool, how is John Williamns 
and Michael Jordan? I don't know but Michael Johnson is fine. Michael do you
still score points with LeBron James, Michael Green AKA Star and Michael Wood?";

get an array of last names of people named Michael. The result should be:
["Jordan", "Johnson", "Green", "Wood"]

Notes:

First name will always be Michael with upper case 'M'.
There will always be a space character between 'Michael' and last name.
Last name will always be one word, starting with an upper-case letter and 
continuing with lower-case letters.
There will always be at least one 'Micheal' with a valid last name in the 
input text.

Keywords:
regex, regular expressions
*/



const inputText = "Michael, how are you? - Cool, how is John Williamns and Michael Jordan? I don't know but Michael Johnson is fine. Michael do you still score points with LeBron James, Michael Green Miller and Michael Wood?";



function getMichaelLastName(text) {
  return text
    .match(/(?:Michael )([A-Z][a-z]+)/g)
    .map(person => person.slice(8));
}

console.log(JSON.stringify(    getMichaelLastName(inputText)    ));



// -------------------------------------
function getMichaelLastName2(text) {
  return text
    .match(/(?:Michael )([A-Z][a-z]+)/g)
    .map(person => person.slice(person.indexOf(' ')+1));
}



// -------------------------------------
function getMichaelLastName3(inputText) {
  return inputText
    .split(/Michael/)
    .filter(item => item.match(/^ [A-Z][a-z]+/))
    .map(item => item.match(/[A-Z][a-z]+/)[0]);
}

              
            
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999px

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