Checks to see if an argument value contains a numerical value. When the argument value is a number, the function returns true; otherwise, it returns false.
Category: | Information and Conversion |
Returned data type: | Integer |
Note: | The returned value is a Boolean value. |
argvaluebooleanISNUMBER()
argvalue
string
The isnumber function takes the following argument types: string.
string x
string y
date z
string error_message1
string error_message2
string error_message3
x ="5"
y="Hello"
z="01/01/10"
if(isnumber(x) )
error_message1 = "String x is a number"
else
error_message1= "String x is not a number"
if( isnumber(y) )
error_message2 =" String y value is a number"
else
error_message2 =" String y value is not a number"
if( isnumber(z) )
error_message3 = "String z value is a number"
else
error_message3 = "String z value is not a number"