How can I get the first letters of each word in JavaScript?

Question

I need to get the first letter of each word in an array and log these first letters to the console.

These are the words:

var names = ["Vincent", "Charlotte", "Nandi", "Eiske", "Joachim", "Angelo", "Paul", "Chantal", "Olaf", "Inge", "Rogier", "Michael", "Ramon", "Carolien", "Johan", "Bianca", "Rene", "Yulia", "Bram", "Anneloes", "Kirsten", "Roel", "Gökhan", "Annemiek", "Lisette", "Menno", "Rene", "Erik", "Robin", "Frank", "Anton", "Maks", "Rob", "Floor", "Bas", "Rico", "Max", "Bastiaan", "Eugune"];


function getNames(names) {
    // 
}

Answer 1

You can use charAt(0) for each word in array. You can use simple forEach() loop for that:

 var names = ["Vincent", "Charlotte", "Nandi", "Eiske", "Joachim", "Angelo", "Paul", "Chantal", "Olaf", "Inge", "Rogier", "Michael", "Ramon", "Carolien", "Johan", "Bianca", "Rene", "Yulia", "Bram", "Anneloes", "Kirsten", "Roel", "Gökhan", "Annemiek", "Lisette", "Menno", "Rene", "Erik", "Robin", "Frank", "Anton", "Maks", "Rob", "Floor", "Bas", "Rico", "Max", "Bastiaan", "Eugune"]; function getNames(names){ names.forEach(item => console.log(item.charAt(0))); } getNames(names); 

You can also go with traditional way of for loop if you are new in using loops:

 var names = ["Vincent", "Charlotte", "Nandi", "Eiske", "Joachim", "Angelo", "Paul", "Chantal", "Olaf", "Inge", "Rogier", "Michael", "Ramon", "Carolien", "Johan", "Bianca", "Rene", "Yulia", "Bram", "Anneloes", "Kirsten", "Roel", "Gökhan", "Annemiek", "Lisette", "Menno", "Rene", "Erik", "Robin", "Frank", "Anton", "Maks", "Rob", "Floor", "Bas", "Rico", "Max", "Bastiaan", "Eugune"]; function getNames(names){ for(var i=0; i<names.length; i++){ console.log(names[i].charAt(0)) } } getNames(names); 

Also note that the function name and variable name in your case cannot be same which you are using as names as it will conflict.

Answer 2

You could map the first letter by using a destructuring assignment for the first letter.

 var names = ["Vincent", "Charlotte", "Nandi", "Eiske", "Joachim", "Angelo", "Paul", "Chantal", "Olaf", "Inge", "Rogier", "Michael", "Ramon", "Carolien", "Johan", "Bianca", "Rene", "Yulia", "Bram", "Anneloes", "Kirsten", "Roel", "Gökhan", "Annemiek", "Lisette", "Menno", "Rene", "Erik", "Robin", "Frank", "Anton", "Maks", "Rob", "Floor", "Bas", "Rico", "Max", "Bastiaan", "Eugune"], result = names.map(([c]) => c); console.log(result); 

Answer 3

Use array map:

 var names = ["Vincent", "Charlotte", "Nandi", "Eiske", "Joachim", "Angelo", "Paul", "Chantal", "Olaf", "Inge", "Rogier", "Michael", "Ramon", "Carolien", "Johan", "Bianca", "Rene", "Yulia", "Bram", "Anneloes", "Kirsten", "Roel", "Gökhan", "Annemiek", "Lisette", "Menno", "Rene", "Erik", "Robin", "Frank", "Anton", "Maks", "Rob", "Floor", "Bas", "Rico", "Max", "Bastiaan", "Eugune"]; var result = names.map(current=>{ return current[0]; }); console.log(result); 

Answer 4

 var names = ["Vincent", "Charlotte", "Nandi", "Eiske", "Joachim", "Angelo", "Paul", "Chantal", "Olaf", "Inge", "Rogier", "Michael", "Ramon", "Carolien", "Johan", "Bianca", "Rene", "Yulia", "Bram", "Anneloes", "Kirsten", "Roel", "Gökhan", "Annemiek", "Lisette", "Menno", "Rene", "Erik", "Robin", "Frank", "Anton", "Maks", "Rob", "Floor", "Bas", "Rico", "Max", "Bastiaan", "Eugune"], result = names.map(name => name[0]); console.log(result); 

Answer 5

const names = arr => arr.forEach(s => console.log(s[0]));

Answer 6

You can filter through the array using a for loop, and then push the first letter to a filtered array and then return that.

var names = ["Vincent", "Charlotte", "Nandi", "Eiske", "Joachim", "Angelo", "Paul", "Chantal", "Olaf", "Inge", "Rogier", "Michael", "Ramon", "Carolien", "Johan", "Bianca", "Rene", "Yulia", "Bram", "Anneloes", "Kirsten", "Roel", "Gökhan", "Annemiek", "Lisette", "Menno", "Rene", "Erik", "Robin", "Frank", "Anton", "Maks", "Rob", "Floor", "Bas", "Rico", "Max", "Bastiaan", "Eugune"]; // Names array


function checkNames(names) {
var f = [];
    for(var i = 0; i < names.length; i++){
    f.push(substring(names[i],0,1));
    }
return f;
}

var result_array = checkNames(names); // Filtered Array that will hold your single letters