String Formatter

A signup form is receiving names with inconsistent spacing and casing. Normalize the names before showing them back to the user.

Write these functions:

• cleanText(text) should remove spaces from the start and end of a string.

• capitalize(text) should uppercase the first character and lowercase the rest.

• formatDisplayName(firstName, lastName) should clean and capitalize both names, then return the full display name.

Sample checks:

console.log(formatDisplayName('  ava', 'STONE  '));console.log(formatDisplayName('nOAh', '  kim'));console.log(formatDisplayName('  mINA  ', 'pATEL'));

Expected output:

Ava StoneNoah KimMina Patel

formatDisplayName should reuse the smaller helpers instead of repeating all the string cleanup work.