Displaying or hiding the sign

{ 1 :number signDisplay=always }
{ -1 :number signDisplay=always }

{ 1 :number signDisplay=never }
{ -1 :number signDisplay=never }

By default, positive numbers are not prefixed with a sign, while negative numbers are prefixed with a minus sign.

The signDisplay option can be used to forcibly display or hide the sign of a number. The possible values are:

• auto (default): Display the sign only for negative numbers, including negative zero.
• always: Always display the sign, even for positive numbers, and positive zero.
• never: Never display the sign, even for negative numbers, and negative zero.
• exceptZero: Display the sign for all numbers, except for zero.
• negative: Display the sign only for negative numbers, but not for negative zero.

Floating-point numbers distinguish between positive and negative zero. In modes auto and always, the sign of negative zero is displayed. If you do not want to display the sign for negative zero, use negative instead of auto, or exceptZero instead of always.