utils/unicode

Checks whether given character is a combining mark.

Parameters

character : string

Character to check.

Returns

boolean

Checks whether given character is a high half of surrogate pair.

Using UTF-16 terminology, a surrogate pair denotes UTF-16 character using two UTF-8 characters. The surrogate pair consist of high surrogate pair character followed by low surrogate pair character.

Parameters

character : string

Character to check.

Returns

boolean

Checks whether given offset in a string is between base character and combining mark or between two combining marks.

Parameters

string : string

String to check.

offset : number

Offset to check.

Returns

boolean

Checks whether given offset in a string is inside multi-character emoji sequence.

Parameters

string : string

String to check.

offset : number

Offset to check.

Returns

boolean

Checks whether given offset in a string is inside a surrogate pair (between two surrogate halves).

Parameters

string : string

String to check.

offset : number

Offset to check.

Returns

boolean

Checks whether given character is a low half of surrogate pair.

Using UTF-16 terminology, a surrogate pair denotes UTF-16 character using two UTF-8 characters. The surrogate pair consist of high surrogate pair character followed by low surrogate pair character.

Parameters

character : string

Character to check.

Returns

boolean