//capitalize only the first letter of the string.
function capitalizeFirstLetter(string) {
return string.charAt(0).toUpperCase() + string.slice(1);
}
//capitalize all words of a string.
function capitalizeWords(string) {
return string.replace(/(?:^|\s)\S/g, function(a) { return a.toUpperCase(); });
};const uppercaseWords = str => str.replace(/^(.)|\s+(.)/g, c => c.toUpperCase());
// Example
uppercaseWords('hello world'); // 'Hello World'const lower = 'this is an entirely lowercase string';
const upper = lower.charAt(0).toUpperCase() + lower.substring(1);const str = 'captain picard';
function capitalize(str) {
return str.charAt(0).toUpperCase() + str.slice(1);
}
const caps = str.split(' ').map(capitalize).join(' ');
caps; // 'Captain Picard'const str = 'FIDEURAM VITA';
function capitalize(str) {
return str.charAt(0).toUpperCase() + str.slice(1).toLowerCase();
}
const caps = str.split(' ').map(capitalize).join(' ');
caps; // 'Fideuram Vita'
//Without function
const str = 'FIDEURAM VITA';
const caps = str.split(' ').map(str =>str.charAt(0).toUpperCase() + str.slice(1).toLowerCase()).join(' ')
caps; // 'Fideuram Vita'