JavaScript String normalize() method returns a Unicode normalization form of a given input string. If the given input is not a string, then at first it will be converted into a string then this method will work.

Syntax

string.normalize([form])

Parameters

Here the parameter is formed which is of many types- 

• NFC: Normalization Form Canonical Composition.
• NFD: Normalization Form Canonical Decomposition.
• NFKC: Normalization Form Compatibility Composition.
• NFKD: Normalization Form Compatibility Decomposition.

These all say the Unicode Normalization Form. 

Return value

It returns a new string containing the Unicode Normalization Form of the given input string.

Example 1: This example shows the basic use of the string.normalize() method in Javascript.

let a = "Geeks For Geeks";

b = a.normalize('NFC')
c = a.normalize('NFD')
d = a.normalize('NFKC')
e = a.normalize('NFKD')

console.log(b, c, d, e); 

let a = "Geeks For Geeks";

​

b = a.normalize('NFC')

c = a.normalize('NFD')

d = a.normalize('NFKC')

e = a.normalize('NFKD')

​

console.log(b, c, d, e);

Output:  

Geeks For GeeksGeeks For GeeksGeeks For GeeksGeeks For Geeks

Example 2: This example shows the basic use of the string.normalize() method in Javascript.

// Taking a string as input.
let a = "GeeksForGeeks";

// calling normalize method.
b = a.normalize('NFC')
c = a.normalize('NFD')
d = a.normalize('NFKC')
e = a.normalize('NFKD')

// Printing normalised form.
console.log(b);
console.log(c);
console.log(d);
console.log(e);

// Taking a string as input.

let a = "GeeksForGeeks";

​

// calling normalize method.

b = a.normalize('NFC')

c = a.normalize('NFD')

d = a.normalize('NFKC')

e = a.normalize('NFKD')

​

// Printing normalised form.

console.log(b);

console.log(c);

console.log(d);

console.log(e);

Output: 

GeeksForGeeks
GeeksForGeeks
GeeksForGeeks
GeeksForGeeks

Supported Browsers

• Google Chrome 34
• Edge 12
• Firefox 31
• Opera 21
• Safari 10