operator
prefix
..
<
{
associativity
precedence
}
Declarations
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
Comparable
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
BinaryFloatingPoint
, Comparable
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
FixedWidthInteger
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
FixedWidthInteger
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
FixedWidthInteger
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
FixedWidthInteger
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
FixedWidthInteger
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
Comparable
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
StringProtocol
, Comparable
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
FixedWidthInteger
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
FixedWidthInteger
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
FixedWidthInteger
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
FixedWidthInteger
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
FixedWidthInteger
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
Comparable
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
Strideable
, Comparable
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
Strideable
, Comparable
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
Strideable
, Comparable
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
Strideable
, Comparable
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
Comparable
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
Comparable
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
Comparable
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
Comparable
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
Comparable
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
Comparable
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
Comparable
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
Comparable
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
Comparable
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix ..<
) to create a
partial range of any type that conforms to the Comparable
protocol.
This example creates a PartialRangeUpTo<Double>
instance that includes
any value less than 5.0
.
let
upToFive
= ..
<
5.0
upToFive
.
contains
(
3.14
)
// true
upToFive
.
contains
(
6.28
)
// false
upToFive
.
contains
(
5.0
)
// false
You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
let
numbers
= [
10
,
20
,
30
,
40
,
50
,
60
,
70
]
(
numbers
[..
<
3
])
// Prints "[10, 20, 30]"
maximum
: The upper bound for the range.
Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
Comparable
30 inherited items hidden. (Show all)
Returns a partial range up to, but not including, its upper bound.
Use the prefix half-open range operator (prefix
..<
) to create a partial range of any type that conforms to theComparable
protocol. This example creates aPartialRangeUpTo<Double>
instance that includes any value less than5.0
.You can use this type of partial range of a collection's indices to represent the range from the start of the collection up to, but not including, the partial range's upper bound.
maximum
: The upper bound for the range.Declaration
prefix
func
..
<
(
maximum
:
Self
) -
>
PartialRangeUpTo
<
Self
>
Declared In
Strideable
,Comparable