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% API
# Builtins
# Set
## Set.add
```tomo
Set.add : func(set: |T|, item: T -> Void)
```
Adds an item to the set.
Argument | Type | Description | Default
---------|------|-------------|---------
set | `|T|` | The mutable reference to the set. | -
item | `T` | The item to add to the set. | -
**Return:** Nothing.
**Example:**
```tomo
>> nums.add(42)
```
## Set.add_all
```tomo
Set.add_all : func(set: @|T|, items: [T] -> Void)
```
Adds multiple items to the set.
Argument | Type | Description | Default
---------|------|-------------|---------
set | `@|T|` | The mutable reference to the set. | -
items | `[T]` | The list of items to add to the set. | -
**Return:** Nothing.
**Example:**
```tomo
>> nums.add_all([1, 2, 3])
```
## Set.clear
```tomo
Set.clear : func(set: @|T| -> Void)
```
Removes all items from the set.
Argument | Type | Description | Default
---------|------|-------------|---------
set | `@|T|` | The mutable reference to the set. | -
**Return:** Nothing.
**Example:**
```tomo
>> nums.clear()
```
## Set.has
```tomo
Set.has : func(set: |T|, item: T -> Bool)
```
Checks if the set contains a specified item.
Argument | Type | Description | Default
---------|------|-------------|---------
set | `|T|` | The set to check. | -
item | `T` | The item to check for presence. | -
**Return:** `yes` if the item is present, `no` otherwise.
**Example:**
```tomo
>> |10, 20|.has(20)
= yes
```
## Set.is_subset_of
```tomo
Set.is_subset_of : func(set: |T|, other: |T|, strict: Bool = no -> Bool)
```
Checks if the set is a subset of another set.
Argument | Type | Description | Default
---------|------|-------------|---------
set | `|T|` | The set to check. | -
other | `|T|` | The set to compare against. | -
strict | `Bool` | If `yes`, checks if the set is a strict subset (does not equal the other set). | `no`
**Return:** `yes` if the set is a subset of the other set (strictly or not), `no` otherwise.
**Example:**
```tomo
>> |1, 2|.is_subset_of(|1, 2, 3|)
= yes
```
## Set.is_superset_of
```tomo
Set.is_superset_of : func(set: |T|, other: |T|, strict: Bool = no -> Bool)
```
Checks if the set is a superset of another set.
Argument | Type | Description | Default
---------|------|-------------|---------
set | `|T|` | The set to check. | -
other | `|T|` | The set to compare against. | -
strict | `Bool` | If `yes`, checks if the set is a strict superset (does not equal the other set). | `no`
**Return:** `yes` if the set is a superset of the other set (strictly or not), `no` otherwise.
**Example:**
```tomo
>> |1, 2, 3|.is_superset_of(|1, 2|)
= yes
```
## Set.overlap
```tomo
Set.overlap : func(set: |T|, other: |T| -> |T|)
```
Creates a new set with items that are in both the original set and another set.
Argument | Type | Description | Default
---------|------|-------------|---------
set | `|T|` | The original set. | -
other | `|T|` | The set to intersect with. | -
**Return:** A new set containing only items present in both sets.
**Example:**
```tomo
>> |1, 2|.overlap(|2, 3|)
= |2|
```
## Set.remove
```tomo
Set.remove : func(set: @|T|, item: T -> Void)
```
Removes an item from the set.
Argument | Type | Description | Default
---------|------|-------------|---------
set | `@|T|` | The mutable reference to the set. | -
item | `T` | The item to remove from the set. | -
**Return:** Nothing.
**Example:**
```tomo
>> nums.remove(42)
```
## Set.remove_all
```tomo
Set.remove_all : func(set: @|T|, items: [T] -> Void)
```
Removes multiple items from the set.
Argument | Type | Description | Default
---------|------|-------------|---------
set | `@|T|` | The mutable reference to the set. | -
items | `[T]` | The list of items to remove from the set. | -
**Return:** Nothing.
**Example:**
```tomo
>> nums.remove_all([1, 2, 3])
```
## Set.with
```tomo
Set.with : func(set: |T|, other: |T| -> |T|)
```
Creates a new set that is the union of the original set and another set.
Argument | Type | Description | Default
---------|------|-------------|---------
set | `|T|` | The original set. | -
other | `|T|` | The set to union with. | -
**Return:** A new set containing all items from both sets.
**Example:**
```tomo
>> |1, 2|.with(|2, 3|)
= |1, 2, 3|
```
## Set.without
```tomo
Set.without : func(set: |T|, other: |T| -> |T|)
```
Creates a new set with items from the original set but without items from another set.
Argument | Type | Description | Default
---------|------|-------------|---------
set | `|T|` | The original set. | -
other | `|T|` | The set of items to remove from the original set. | -
**Return:** A new set containing items from the original set excluding those in the other set.
**Example:**
```tomo
>> |1, 2|.without(|2, 3|)
= |1|
```
|
