All Superinterfaces:

Iterable<JsElem>
```
public interface MutableSeq
```
Represents a mutable data structure where elements of a JsArray are stored. Each mutable Json factory MutableJsons has an implementation of this interface, that can be defined using the method MutableJsons.withSeq(Class). The default mutable implementation that Jsons.mutable uses is the Java ArrayList

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`add(int index, JsElem ele)`	adds an element at the index, shifting elements at greater or equal indexes one position to the right.
`void`	`appendBack(JsElem elem)`	appends the element to the back of the seq
`void`	`appendFront(JsElem elem)`	appends the element to the front of the seq
`boolean`	`contains(JsElem e)`	returns true if the seq contains the element
`MutableSeq`	`copy()`	creates and returns a copy of this sequence
`JsElem`	`get(int index)`	returns the element located at the index.
`JsElem`	`head()`	returns the first element of the seq.
`V`	`init()`
`boolean`	`isEmpty()`	returns true if this seq is empty
`JsElem`	`last()`	returns the last element of the seq.
`void`	`remove(int index)`	removes the element located at the index.
`int`	`size()`	returns the size of the seq
`V`	`tail()`
`void`	`update(int index, JsElem ele)`	updates the element located at the index with a new element.

Methods inherited from interface java.lang.Iterable
forEach, iterator, spliterator

- Method Detail
  - copy
```
MutableSeq copy()
```
    creates and returns a copy of this sequence
    
    Returns:
    
    a new instance
  - appendFront
```
void appendFront(JsElem elem)
```
    appends the element to the front of the seq
    
    Parameters:
    
    elem - the given element
  - appendBack
```
void appendBack(JsElem elem)
```
    appends the element to the back of the seq
    
    Parameters:
    
    elem - the given element
  - update
```
void update(int index,
            JsElem ele)
```
    updates the element located at the index with a new element. It will be called by the library only if the index exists
    
    Parameters:
    
    index - the given index
    
    ele - the given element
  - add
```
void add(int index,
         JsElem ele)
```
    adds an element at the index, shifting elements at greater or equal indexes one position to the right. It's called by the library only if the index exists
    
    Parameters:
    
    index - the given index
    
    ele - the given element
  - remove
```
void remove(int index)
```
    removes the element located at the index. It will be called by the library only if the index exists
    
    Parameters:
    
    index - the given index
  - head
```
JsElem head()
```
    returns the first element of the seq. It's called by the library only if the seq is not empty
    
    Returns:
    
    the first element of the seq
  - tail
```
V tail()
```
  - init
```
V init()
```
  - last
```
JsElem last()
```
    returns the last element of the seq. It's called by the library only if the seq is not empty
    
    Returns:
    
    the last element of the seq
  - get
```
JsElem get(int index)
```
    returns the element located at the index. It's called by the library only if the index exists
    
    Parameters:
    
    index - the given index
    
    Returns:
    
    the element located at the index
  - size
```
int size()
```
    returns the size of the seq
    
    Returns:
    
    the size of the seq
  - isEmpty
```
boolean isEmpty()
```
    returns true if this seq is empty
    
    Returns:
    
    true if empty, false otherwise
  - contains
```
boolean contains(JsElem e)
```
    returns true if the seq contains the element
    
    Parameters:
    
    e - the given element
    
    Returns:
    
    true if the seq contains the element, false otherwise

Interface MutableSeq

Method Summary

Methods inherited from interface java.lang.Iterable

Method Detail

copy

appendFront

appendBack

update

add

remove

head

tail

init

last

get

size

isEmpty

contains