How to capitalize all words in a string using JavaScript? How to make first letter uppercase?

Web Development
1

How do I make the first letter of all words in a string uppercase? I want to capitalize all words, like what PHP ucwords() do. I don’t find any function like that in javascript. We have the toUpperCase() function which makes everything uppercase but why can’t we make all words capitalized?

Is there any way to make a function that I can directly call on the string variable? For example.

var simpleString = "this is a simple string";
console.log( simpleString.ucwords() );
// This Is A Simple String

How to implement ucwords() in JavaScript?

2

We don’t know why JavaScript does not have any function like that. Maybe in the future, they will add the function. Till now we have to use a custom function to fulfill the need.

String.prototype.toCapitalize = function( allowAll = true ){
    return allowAll ? this.split(' ').map( word => word.toCapitalize(false) ).join(' ') : 
    this.charAt(0).toUpperCase() + this.slice(1);
}

This will fulfill your goal.

var simpleString = "this is a simple string";
console.log( simpleString.toCapitalize() );
// This Is A Simple String

Anyway you can change the function name from toCapitalize() to ucwords()