AF
Size: a a a
AF
IK
IS
IS
let s = "2+2*2"
let e = NSExpression(format: s)
if let v = e.expressionValue(with: nil, context: nil) as? Int {
print(v)
} else {
print("error")
}
AF
let s = "2+2*2"
let e = NSExpression(format: s)
if let v = e.expressionValue(with: nil, context: nil) as? Int {
print(v)
} else {
print("error")
}
IS
AF
AF
let s = "2+2*2"
let e = NSExpression(format: s)
if let v = e.expressionValue(with: nil, context: nil) as? Int {
print(v)
} else {
print("error")
}
IS
IS
AF
AF
IS
IS
AF
IS
VD
VD