normalize

The normalize() method returns a new string normalized according to the specified Unicode form.

Interactive example

Syntax

type NormalizeForm = "NFC" | "NFD" | "NFKC" | "NFKD";

Classic signature

function normalize<
	GenericInput extends string
>(
	input: GenericInput, 
	form: NormalizeForm
): string;

Curried signature

function normalize<
	GenericInput extends string
>(
	form: NormalizeForm
): (input: GenericInput) => string;

Parameters

• input: The string to normalize.
• form: The Unicode normalization form to use. Options are:
  • "NFC" (Normalization Form C): Composed, where accented characters are represented by a single code point.
  • "NFD" (Normalization Form D): Decomposed, where accented characters are represented by a base letter followed by separate diacritic characters.
  • "NFKC" (Normalization Form KC): Composed and compatibility, similar to NFC but with additional transformations for compatibility.
  • "NFKD" (Normalization Form KD): Decomposed and compatibility, similar to NFD but with additional transformations for compatibility.

Return value

A new string normalized according to the specified form.

See also

• toUpperCase: Converts the entire string to uppercase.
• toLowerCase: Converts the entire string to lowercase.
• repeat: Repeats a string a specified number of times.
• trim: Removes whitespace at the start and end of a string.

Sources

• MDN Web Docs - String.prototype.normalize()