Question

How to capitalize the first letter of each word in a string with JavaScript

Answer 1

function CapitalizeFirstLetters(s) {
    return s.replace(/\w\S*/g, function(txt){return txt.charAt(0).toUpperCase() + 
                                                    txt.substr(1).toLowerCase();});
}
 
const s = 'javascript programming language';
  
console.log(CapitalizeFirstLetters(s));


 
/*
 
run:
 
Javascript Programming Language
 
*/

 

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Answer 2

function toTitleCase(s) {
    let words_array = s.toLowerCase().split(' ');
 
    for (let i = 0; i < words_array.length; i++) {
        words_array[i] = words_array[i].charAt(0).toUpperCase() + words_array[i].substring(1);
    }
    
    return words_array.join(' ');
}
 
 
let s = "JavaScript is a programming language of the World Wide Web";
 
s = toTitleCase(s);
 
console.log(s);
 
 
 
 
 
/*
run:
 
Javascript Is A Programming Language Of The World Wide Web
 
*/

 

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