{"tags":[{"tag":"textarea","content":"function sentence(s){\n return s.replace(\/^.{1}\/g, s[0].toUpperCase());\n}","code_language":"javascript"}]}

function capFirst(str) { return str[0].toUpperCase() + str.slice(1); }
console.log(capFirst('hello'));
//output
//Hello

function capitalizeFirstLetter(string) { return string.charAt(0).toUpperCase() + string.slice(1);
}
console.log(capitalizeFirstLetter('foo')); // Foo

function capitalizeFirstLetter(str) { return str.charAt(0).toUpperCase() + str.slice(1);
}
// Example usage
const text = "hello world";
const capitalizedText = capitalizeFirstLetter(text);
console.log(capitalizedText); // Output: "Hello world"

function capitalizeFirstLetter(name) { return name.replace(/^./, name[0].toUpperCase())
}

const lower = 'this is an entirely lowercase string';
const upper = lower.charAt(0).toUpperCase() + lower.substring(1);

var name = prompt("What is your name");
firstLetterUpper = name.slice(0,1).toUpperCase();
alert("Hello " + firstLetterUpper + name.slice(1, name.length).toLowerCase());

String.prototype.capitalize = function() { return this.charAt(0).toUpperCase() + this.slice(1);
}

const upperCase = function(names){ const toLower = names.toLowerCase().split(' '); const namesUpper = []; for(const wordName of toLower){ namesUpper.push(wordName[0].toUpperCase() + wordName.slice(1)); } return namesUpper.join(' ');
}