isupper()

Read(2321) Label: upper case letter, boolean value,

Description:

Check if a string is composed of uppercase letters.

Syntax:

isupper(string)

Note:

The function checks if the string string is composed of uppercase letters. If string is an integer, look it up in the ASCII table to see if the corresponding characters are in uppercase.

Parameter:

String

String expression/numeric expression

Return value:

Boolean value

Example:

isupper("ADSFDGKJ")

true

isupper(85)

true

isupper("SDsdsSDAS")

false

isupper("8ASDS7")

false

Related function:

islower()