Add Capitalized Letter After Each Dash In A String

Here is an example of what my problem is let str = 'A-bb-cc-dd' How do I make it so that the string will return 'A-Bb-Cc-Dd'

Solution 1:

You can use a simple regex in a replace statement:

let str = 'A-bb-cc-dd'console.log(
  str.replace(/\-[a-z]/g, match => match.toUpperCase())
)

\-[a-z] will simply match a lowercase character after a dash, match.toUpperCase() makes all letters in the string uppercase.

Solution 2:

You can do it like this,

let str = 'A-bb-cc-dd';
let result = (str.split('-').map(e=>e.charAt(0).toUpperCase() + e.slice(1))).join('-');
console.log(result);

Solution 3:

You can split by the string by - delimiter then use map to create a new array where the first character will be uppercased using toUpperCase and then use join to recreate the string

let k = 'A-bb-cc-dd';
let convertedStr = k.split('-').map((item) => {
  return item.charAt(0).toUpperCase() + item.slice(1);
}).join('-');
console.log(convertedStr)

How do i make it so that the string will return 'A-Bb-Cc-Dd'

Solution 4:

You can use a JS regular expression and String.replace like so

const result = 'A-bb-cc-dd'.replace(/(^\w|-\w)/g, c => c.toUpperCase());

console.log(result);

Solution 5:

Use string split, map and join:

let str = 'A-bb-cc-dd';
var array = str.split("-"); //console.log(array);var result = array.map(current => {
    return current[0].toUpperCase() + current.substr(1);
});
var end = result.join("-");
console.log(end);