Class: Toybox.Lang.Double

Inherits:

Toybox.Lang.Object

• Toybox.Lang.Object
• Toybox.Lang.Double

Overview

Double represents a 64-bit floating point number.

To use a double in Monkey C add 'd' to the end of the number.

Example:

var e = 2.718281828459045d;

Since:

API Level 1.0.0

Instance Method Summary

• abs() as Lang.Double

  Get the absolute value of a Double.

• equals(object) as Lang.Boolean

  Test if an Object instance is equal to another instance of an Object.

• format(format as Lang.String) as Lang.String

  Format a Double using a formatting String.

• toDouble() as Lang.Double

  Convert a Double to a Double.

• toFloat() as Lang.Float

  Convert a Double to a Float.

• toLong() as Lang.Long

  Convert a Double to a Long.

• toNumber() as Lang.Number

  Convert a Double to a Number.

• toString() as Lang.String

  Convert a Double to a String.

Instance Method Details

abs() as Lang.Double

Get the absolute value of a Double.

Returns:

• Lang.Double —

  The absolute value of the Double

Since:

API Level 1.0.0

equals(object) as Lang.Boolean

Test if an Object instance is equal to another instance of an Object.

Parameters:

• object — (Lang.Object) —

  The Object to test against

Returns:

• Lang.Boolean —

  true if the Objects are equal, otherwise false

Since:

API Level 1.3.0

format(format as Lang.String) as Lang.String

Format a Double using a formatting String.

The formatting string is similar to that available in printf from the C stdio library, though the length option is not available:

    "%[flags][width][.precision]specifier"

specifiers

• d or i - signed decimal integer

• e - scientific notation (mantissa/exponent) using 'e' character

• E - scientific notation (mantissa/exponent) using 'E' character

• f - decimal floating point

• o - signed octal

• u - unsigned decimal integer

• x - unsigned hexadecimal integer

• X - unsigned hexadecimal integer (capital letters)

flags

• + - Prepends the result with a plus or minus sign ('+' or '-'), including positive numbers. By default, only negative numbers are preceded with a '-' sign.

• 0 - Left-pads the number with zeros (0) instead of spaces, where padding is specified (see width sub-specifier).

width

supports only numbers (* is not supported)

.precision

supports only numbers (* is not supported)

Returns:

• Lang.String —

  A formatted String

Since:

API Level 1.0.0

toDouble() as Lang.Double

Convert a Double to a Double.

Returns:

• Lang.Double —

  A Double representation of the Double

Since:

API Level 1.0.0

toFloat() as Lang.Float

Convert a Double to a Float.

Returns:

• Lang.Float —

  A Float representation of the Double

Since:

API Level 1.0.0

toLong() as Lang.Long

Convert a Double to a Long.

Returns:

• Lang.Long —

  A Long representation of the Double

Since:

API Level 1.0.0

toNumber() as Lang.Number

Convert a Double to a Number.

The Double value will be rounded toward 0 upon conversion. For example, 6.8 becomes 6 and -5.7 becomes -5.

Returns:

• Lang.Number —

  A Number representation of the Double

Since:

API Level 1.0.0

toString() as Lang.String

Convert a Double to a String.

Returns:

• Lang.String —

  The String representation of the Double

Since:

API Level 1.0.0