toTitleCase

Converts a string to title case.

Break the string into words, using a regexp, and combine them capitalizing the first letter of each word and adding a whitespace between them.

typescript

const toTitleCase = (str: string) =>
  str
    .match(/[A-Z]{2,}(?=[A-Z][a-z]+[0-9]*|\b)|[A-Z]?[a-z]+[0-9]*|[A-Z]|[0-9]+/g)
    ?.map((x) => x.charAt(0).toUpperCase() + x.slice(1))
    .join(" ");

typescript

toTitleCase("some_database_field_name"); // 'Some Database Field Name'
toTitleCase("Some label that needs to be title-cased"); // 'Some Label That Needs To Be Title Cased'
toTitleCase("some-package-name"); // 'Some Package Name'
toTitleCase("some-mixed_string with spaces_underscores-and-hyphens"); // 'Some Mixed String With Spaces Underscores And Hyphens'