isNumber
A Boolean value indicating whether this character represents a number.
Declaration
var isNumber: Bool { get }Discussion
For example, the following characters all represent numbers:
“7” (U+0037 DIGIT SEVEN)
“⅚” (U+215A VULGAR FRACTION FIVE SIXTHS)
“㊈” (U+3288 CIRCLED IDEOGRAPH NINE)
“𝟠” (U+1D7E0 MATHEMATICAL DOUBLE-STRUCK DIGIT EIGHT)
“๒” (U+0E52 THAI DIGIT TWO)