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Version: 8.1


This function is used by Ignition's Expression language..


Tries to coerce value into a double (64-bit floating point value). If value is a number, the conversion is direct. If value is a string, it is parsed to see if it represents a double. If not, type casting fails.


toDouble(value, [failover])

  • Parameters

    • Object value - The value to type cast.

    • Object failover - The failover value if type casting fails. [optional]

  • Results

    • Double - The value type cast as a double.


Code Snippet
toDouble("38.772") //returns 38.772
Code Snippet
toDouble({Root Container.TextField.text}, 0.0) //returns the value in the text box as a double, or 0.0 if the value doesn't represent a number.