//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'//Altered, "capitalize all words of a string" (javascript by Grepper on Jul 22 2019) answer to compatible with TypeScript
var myString = 'abcd abcd';
capitalizeWords(text){
return text.replace(/(?:^|\s)\S/g,(res)=>{ return res.toUpperCase();})
};
console.log(capitalizeWords(myString));
//result = "Abcd Abcd"
text.replace(/(^\w|\s\w)/g, m => m.toUpperCase());
// Explanation:
//
// ^\w : first character of the string
// | : or
// \s\w : first character after whitespace
// (^\w|\s\w) Capture the pattern.
// g Flag: Match all occurrences.
// Example usage:
// Create a reusable function:
const toTitleCase = str => str.replace(/(^\w|\s\w)/g, m => m.toUpperCase());
// Call the function:
const myStringInTitleCase = toTitleCase(myString);