| Number data type |
The data type Number represents a numeric value, without units.
Unless specified, number data type values use a 64-bit floating point format (double). Fields that require higher precision like those that store financial results or monetary data use a 128-bit format (decimal).
UsageIn the [Output] section, there are no units to covert:
[Output] MandatedSpeedLimit = input.SpeedLimit
Field lengthThe field length for the Number data type varies based on the format of the field value.
| Value type | Approximate Range | Precision |
|---|---|---|
| double (default) | (±5.0 x 10-324 to ±1.7) × 10308 | 15-16 digits |
| decimal | (-7.9 x 1028 to 7.9 x 1028)/(1000 to 28) | 28-29 digits |
 Note |
|---|
For more information about choosing value types, see Value Types in the Microsoft .NET Language Reference. |
JavaScript conversionWhen you use the optional [Script] section to insert your own JavaScript functions, note that Number maps to JavaScript Number, with JavaScript native number assignment and full use of number operators.
- Creation
- JavaScript
var myNumber = 7;
- Properties
These are the native JavaScript properties for Number objects:
constructor — Returns the function that created the Number object's prototype
MAX_VALUE — Returns the largest number possible in JavaScript
MIN_VALUE — Returns the smallest number possible in JavaScript
NEGATIVE_INFINITY — Represents negative infinity (returned on overflow)
NaN — Represents a "Not-a-Number" value
POSITIVE_INFINITY — Represents infinity (returned on overflow)
prototype — Allows you to add properties and methods to an object
- Methods
These are the native JavaScript methods for Number objects:
toExponential(x) — Converts a number into an exponential notation
toFixed(x) — Formats a number with x numbers of digits after the decimal point
toPrecision(x) — Formats a number to x length
toString() — Converts a Number object to a string
valueOf() — Returns the primitive value of a Number object