ISNUMBER

The function ISNUMBER outputs TRUE if the input is a Number.

This function takes any data type as input. It outputs a Boolean : TRUE if the input is a Number , FALSE if it isn't.

Declaration

ISNUMBER(value) -> result

Parameters

value (required, type: any)

The value that may or may not be a Number.

Return Values

result (type: Boolean)

The result of checking if the given input is a Number; TRUE means that it is and FALSE means that it isn't.

Examples

The following example checks to see if the number 1.5 is a number. It is:

ISNUMBER(1.5) -> TRUE

The following example checks to see if the string "1.5" is a number. It isn't:

ISNUMBER("1.5") -> FALSE

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