Description:
Check if a string is composed of lower-case letters.
Syntax:
islower(string)
Note:
The function checks if the string string is composed of lowercase letters. If string is an integer, look it up in the ASCII table to see if the corresponding characters are in lower case.
Parameter:
|
String |
String expression/numeric expression |
Return value:
Boolean value
Example:
|
islower("dgfdsgf") |
true |
|
islower(97) |
true |
|
islower("dsfaAFD") |
false |
|
islower("97ffdsf") |
false |
Related function: