Question

How to convert a string to title case (capital letters for each word) in JavaScript

Answer 1

function toTitleCase(s) {
  return s.toLowerCase().split(' ').map(function (word) {
    	return (word.charAt(0).toUpperCase() + word.slice(1));
  	}).join(' ');
}

console.log(toTitleCase("javascript is a programming language"));
 
 
   
     
     
/*
run:
     
"Javascript Is A Programming Language"
     
*/

 

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Answer 2

function toTitleCase(s) {
	return s.replace(/\w\S*/g, function (word) {
      return word.charAt(0).toUpperCase() + word.substr(1).toLowerCase();
    }
  );
}

console.log(toTitleCase("javascript is a programming language"));
 
 
   
     
     
/*
run:
     
"Javascript Is A Programming Language"
     
*/

 

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Answer 3

function toTitleCase(s) {
   let arr = s.toLowerCase().split(" ");
      for (let i = 0; i < arr.length; i++) {
         arr[i] = arr[i][0].toUpperCase() + arr[i].slice(1);
      }

   return arr.join(" ");
}
 
console.log(toTitleCase("javascript is a programming language"));
  
  
    
      
      
/*
run:
      
"Javascript Is A Programming Language"
      
*/

 

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