JsNothing

object JsNothing extends JsValue with Product with Serializable

It's a special Json value that represents 'nothing'. Inserting nothing in a json leaves the json unchanged. Functions that return a JsValue, return JsNothing when no element is found, what makes them total on their arguments.

val obj = JsObj.empty
obj("a") == JsNothing
obj.inserted("a",JsNothing) == obj

Linear Supertypes

Serializable, Product, Equals, JsValue, AnyRef, Any

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Inherited

JsNothing
Serializable
Product
Equals
JsValue
AnyRef
Any

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Visibility

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All

Value Members

final def !=(arg0: Any): Boolean
Definition Classes
AnyRef → Any
final def ##(): Int
Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean
Definition Classes
AnyRef → Any
final def asInstanceOf[T0]: T0
Definition Classes
Any
def clone(): AnyRef
Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.CloneNotSupportedException]) @native()
final def eq(arg0: AnyRef): Boolean
Definition Classes
AnyRef
def equals(arg0: AnyRef): Boolean
Definition Classes
AnyRef → Any
def finalize(): Unit
Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.Throwable])
final def getClass(): Class[_ <: AnyRef]
Definition Classes
AnyRef → Any
Annotations
@native()
def id: Int
Every implementation of this trait has an unique identifier.
Every implementation of this trait has an unique identifier.
returns
unique identifier of the type
Definition Classes
JsNothing → JsValue
def isArr: Boolean
returns true if this is an array
returns true if this is an array
Definition Classes
JsNothing → JsValue
def isArr(predicate: (JsArray) => Boolean): Boolean
returns true if this is an array that satisfies a predicate
returns true if this is an array that satisfies a predicate
predicate
the predicate
Definition Classes
JsValue
def isBigDec: Boolean
returns true if this is a big decimal.
returns true if this is a big decimal.
returns
true if this is a big decimal and false otherwise. If this is a double, it returns false.
Definition Classes
JsNothing → JsValue
def isBigInt: Boolean
returns true if this is a big integer.
returns true if this is a big integer.
returns
true if this is a big integer and false otherwise. If this is either an integer or a long, it returns false.
Definition Classes
JsNothing → JsValue
def isBool: Boolean
returns true if this is a boolean
returns true if this is a boolean
Definition Classes
JsNothing → JsValue
def isDecimal(predicate: (BigDecimal) => Boolean): Boolean
returns true if this is a big decimal that satisfies a predicate
returns true if this is a big decimal that satisfies a predicate
predicate
the predicate
returns
true if this is a big decimal that satisfies the predicate. If this is a double, it returns false
Definition Classes
JsValue
def isDecimal: Boolean
returns true if this type is a decimal number
returns true if this type is a decimal number
returns
```
isDouble || isBigDec
```
Definition Classes
JsValue
def isDouble: Boolean
returns true if this is a double
returns true if this is a double
Definition Classes
JsNothing → JsValue
def isDouble(predicate: (Double) => Boolean): Boolean
returns true if this is a double that satisfies a predicate
returns true if this is a double that satisfies a predicate
predicate
the predicate
returns
true if this is a double that satisfies the predicate
Definition Classes
JsValue
final def isInstanceOf[T0]: Boolean
Definition Classes
Any
def isInt: Boolean
returns true if this is an integer (32 bit precision number)
returns true if this is an integer (32 bit precision number)
Definition Classes
JsNothing → JsValue
def isInt(predicate: (Int) => Boolean): Boolean
returns true if this is an integer that satisfies a predicate
returns true if this is an integer that satisfies a predicate
predicate
the predicate
Definition Classes
JsValue
def isIntegral(predicate: (BigInt) => Boolean): Boolean
returns true if this is a big integer that satisfies a predicate
returns true if this is a big integer that satisfies a predicate
predicate
the predicate
returns
true if this is a big integer that satisfies the predicate. If this is either an integer or a long, it returns false.
Definition Classes
JsValue
def isIntegral: Boolean
returns true if this type is an integral number
returns true if this type is an integral number
returns
```
isInt || isLong || isBigInt
```
Definition Classes
JsValue
def isJson(predicate: (Json[_]) => Boolean): Boolean
returns true if this is a json that satisfy a predicate
returns true if this is a json that satisfy a predicate
predicate
the predicate
Definition Classes
JsValue
def isJson: Boolean
returns true is this type is an array or an object
returns true is this type is an array or an object
Definition Classes
JsValue
def isLong: Boolean
returns true if this is a long (62 bit precision number)
returns true if this is a long (62 bit precision number)
returns
true if this is a long and false otherwise. If this is an integer, it returns false.
Definition Classes
JsNothing → JsValue
def isLong(predicate: (Long) => Boolean): Boolean
returns true if this is a long that satisfies a predicate
returns true if this is a long that satisfies a predicate
predicate
the predicate
returns
true if this is a long that satisfies the predicate and false otherwise. If this is an integer, it returns false.
Definition Classes
JsValue
def isNotJson: Boolean
returns true if this is neither an object nor an array
returns true if this is neither an object nor an array
Definition Classes
JsValue
def isNotNull: Boolean
returns true if this is not null
returns true if this is not null
returns
true if this is not null, false otherwise
Definition Classes
JsValue
def isNotNumber: Boolean
returns true if this is not a number
returns true if this is not a number
Definition Classes
JsValue
def isNothing: Boolean
returns true if this is JsNothing
returns true if this is JsNothing
returns
true if this is JsNothing, false otherwise
Definition Classes
JsNothing → JsValue
def isNull: Boolean
returns true if this is JsNull
returns true if this is JsNull
returns
true if this is JsNull, false otherwise
Definition Classes
JsNothing → JsValue
def isNumber: Boolean
returns true if this is a number
returns true if this is a number
Definition Classes
JsNothing → JsValue
def isObj: Boolean
returns true if this is an object
returns true if this is an object
Definition Classes
JsNothing → JsValue
def isObj(predicate: (JsObj) => Boolean): Boolean
returns true if this is an object that satisfies a predicate
returns true if this is an object that satisfies a predicate
predicate
the predicate
Definition Classes
JsValue
def isStr: Boolean
returns true if this is a string
returns true if this is a string
Definition Classes
JsNothing → JsValue
def isStr(predicate: (String) => Boolean): Boolean
returns true if this is a string that satisfies a predicate
returns true if this is a string that satisfies a predicate
predicate
the predicate
Definition Classes
JsValue
final def ne(arg0: AnyRef): Boolean
Definition Classes
AnyRef
final def notify(): Unit
Definition Classes
AnyRef
Annotations
@native()
final def notifyAll(): Unit
Definition Classes
AnyRef
Annotations
@native()
def productElementName(n: Int): String
Definition Classes
Product
def productElementNames: Iterator[String]
Definition Classes
Product
final def synchronized[T0](arg0: => T0): T0
Definition Classes
AnyRef
def toJsArray: Nothing
returns this value as a JsArray if it's an array, throwing an UserError otherwise.
returns this value as a JsArray if it's an array, throwing an UserError otherwise. It's the responsibility of the caller to make sure the call to this function doesn't fail. The guard condition
```
isArr
```
can help to that purpose.
isArr }}}
returns
this value as a JsArray
Definition Classes
JsNothing → JsValue
def toJsBigDec: Nothing
returns this value as a JsBigDec if it's a decimal number, throwing an UserError otherwise.
returns this value as a JsBigDec if it's a decimal number, throwing an UserError otherwise. It's the responsibility of the caller to make sure the call to this function doesn't fail. The guard condition
```
isDecimal
```
can help to that purpose.
isDecimal }}}
returns
this value as a JsBigDec
Definition Classes
JsNothing → JsValue
def toJsBigInt: Nothing
returns this value as a JsBigInt if it's an integral number, throwing an UserError otherwise.
returns this value as a JsBigInt if it's an integral number, throwing an UserError otherwise. It's the responsibility of the caller to make sure the call to this function doesn't fail. The guard condition
```
isIntegral
```
can help to that purpose.
isIntegral }}}
returns
this value as a JsBigInt
Definition Classes
JsNothing → JsValue
def toJsBool: Nothing
returns this value as a JsBool if it's a boolean, throwing an UserError otherwise.
returns this value as a JsBool if it's a boolean, throwing an UserError otherwise. It's the responsibility of the caller to make sure the call to this function doesn't fail. The guard condition
```
isBool
```
can help to that purpose.
isBool }}}
returns
this value as a JsBool
Definition Classes
JsNothing → JsValue
def toJsDouble: Nothing
returns this value as a JsDouble if it is a JsLong or a JsInt or a JsDouble, throwing an UserError otherwise.
returns this value as a JsDouble if it is a JsLong or a JsInt or a JsDouble, throwing an UserError otherwise. It's the responsibility of the caller to make sure the call to this function doesn't fail. The guard condition
```
isInt || isLong || isDouble
```
can help to that purpose.
isInt || isLong || isDouble }}}
returns
this value as a JsDouble
Definition Classes
JsNothing → JsValue
def toJsInt: Nothing
returns this value as a JsInt, throwing an UserError otherwise.
returns this value as a JsInt, throwing an UserError otherwise. It's the responsibility of the caller to make sure the call to this function doesn't fail. The guard condition
```
isInt
```
can help to that purpose.
isInt }}}
returns
this value as a JsInt
Definition Classes
JsNothing → JsValue
def toJsLong: Nothing
returns this value as a JsLong if it is a JsLong or a JsInt, throwing an UserError otherwise.
returns this value as a JsLong if it is a JsLong or a JsInt, throwing an UserError otherwise. It's the responsibility of the caller to make sure the call to this function doesn't fail. The guard condition
```
isInt || isLong
```
can help to that purpose.
isInt || isLong }}}
returns
this value as a JsLong
Definition Classes
JsNothing → JsValue
def toJsNull: Nothing
returns this value as a JsNull if it's null, throwing an UserError otherwise.
returns this value as a JsNull if it's null, throwing an UserError otherwise. It's the responsibility of the caller to make sure the call to this function doesn't fail. The guard condition
```
isNull
```
can help to that purpose.
isNull }}}
returns
this value as a JsNull
Definition Classes
JsNothing → JsValue
def toJsNumber: Nothing
returns this value as a JsNumber if it's a number, throwing an UserError otherwise.
returns this value as a JsNumber if it's a number, throwing an UserError otherwise. It's the responsibility of the caller to make sure the invocation to this function doesn't fail. The guard condition
```
isNumber
```
can help to that purpose.
isNumber }}}
returns
this value as a JsNumber
Definition Classes
JsNothing → JsValue
def toJsObj: Nothing
returns this value as a JsObj if it's an object, throwing an UserError otherwise.
returns this value as a JsObj if it's an object, throwing an UserError otherwise. It's the responsibility of the caller to make sure the call to this function doesn't fail. The guard condition
```
isObj
```
can help to that purpose.
isObj }}}
returns
this value as a JsObj
Definition Classes
JsNothing → JsValue
def toJsStr: Nothing
returns this value as a JsStr if it's a string, throwing an UserError otherwise.
returns this value as a JsStr if it's a string, throwing an UserError otherwise. It's the responsibility of the caller to make sure the call to this function doesn't fail. The guard condition
```
isStr
```
can help to that purpose.
isStr }}}
returns
this value as a JsStr
Definition Classes
JsNothing → JsValue
def toJson: Nothing
returns this value as a Json if it's an object or an array, throwing an UserError otherwise.
returns this value as a Json if it's an object or an array, throwing an UserError otherwise. It's the responsibility of the caller to make sure the call to this function doesn't fail. The guard condition
```
isJson
```
can help to that purpose.
isJson }}}
returns
this value as a Json
Definition Classes
JsNothing → JsValue
final def wait(): Unit
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.InterruptedException])
final def wait(arg0: Long, arg1: Int): Unit
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.InterruptedException])
final def wait(arg0: Long): Unit
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.InterruptedException]) @native()

Packages

JsNothing

object JsNothing extends JsValue with Product with Serializable

Value Members

Inherited from Serializable

Inherited from Product

Inherited from Equals

Inherited from JsValue

Inherited from AnyRef

Inherited from Any

Ungrouped

Packages

JsNothing

object JsNothing extends JsValue with Product with Serializable

Value Members

Inherited from Serializable

Inherited from Product

Inherited from Equals

Inherited from JsValue

Inherited from AnyRef

Inherited from Any

Ungrouped

JsNothing