SFU​.isNumber()

Use isNumber() method to determine if a value from a string or number is number.

Syntax

bRetVal = SFU.isNumber(value, acceptEmptyString);

Parameters

Return Value

This method returns a boolean value.

Example

// Check if the value from the string is number.

var valControl = control.findById("T1").value;

var valNumber = SFU.isNumber(valControl);

// Return true if value contains "123" or 123.

// Returns false if value contains "12A3" or ""

// Check if a value from the string is empty and consider it as number.

var valControl = control.findById("T1").value;

var valNumber = SFU.isNumber(valControl,true);

// Returns true if value contains "123", 123,or "".