How do I make the first letter of a string uppercase? [duplicate]

Answer 1

Here's a function that does it

function firstToUpperCase( str ) {
    return str.substr(0, 1).toUpperCase() + str.substr(1);
}

var str = 'hello, I\'m a string';
var uc_str = firstToUpperCase( str );

console.log( uc_str ); //Hello, I'm a string