equals
Indicates whether some other object is "equal to" this one. Implementations must fulfil the following requirements:
Reflexive: for any non-null value
x
,x.equals(x)
should return true.Symmetric: for any non-null values
x
andy
,x.equals(y)
should return true if and only ify.equals(x)
returns true.Transitive: for any non-null values
x
,y
, andz
, ifx.equals(y)
returns true andy.equals(z)
returns true, thenx.equals(z)
should return true.Consistent: for any non-null values
x
andy
, multiple invocations ofx.equals(y)
consistently return true or consistently return false, provided no information used inequals
comparisons on the objects is modified.Never equal to null: for any non-null value
x
,x.equals(null)
should return false.
Read more about equality in Kotlin.
Since Kotlin
1.0Indicates whether some other object is "equal to" this one. Implementations must fulfil the following requirements:
Reflexive: for any non-null value
x
,x.equals(x)
should return true.Symmetric: for any non-null values
x
andy
,x.equals(y)
should return true if and only ify.equals(x)
returns true.Transitive: for any non-null values
x
,y
, andz
, ifx.equals(y)
returns true andy.equals(z)
returns true, thenx.equals(z)
should return true.Consistent: for any non-null values
x
andy
, multiple invocations ofx.equals(y)
consistently return true or consistently return false, provided no information used inequals
comparisons on the objects is modified.Never equal to null: for any non-null value
x
,x.equals(null)
should return false.
Read more about equality in Kotlin.
Since Kotlin
1.1Indicates whether some other object is "equal to" this one. Implementations must fulfil the following requirements:
Reflexive: for any non-null value
x
,x.equals(x)
should return true.Symmetric: for any non-null values
x
andy
,x.equals(y)
should return true if and only ify.equals(x)
returns true.Transitive: for any non-null values
x
,y
, andz
, ifx.equals(y)
returns true andy.equals(z)
returns true, thenx.equals(z)
should return true.Consistent: for any non-null values
x
andy
, multiple invocations ofx.equals(y)
consistently return true or consistently return false, provided no information used inequals
comparisons on the objects is modified.Never equal to null: for any non-null value
x
,x.equals(null)
should return false.
Read more about equality in Kotlin.
Since Kotlin
1.3Indicates whether some other object is "equal to" this one. Implementations must fulfil the following requirements:
Reflexive: for any non-null value
x
,x.equals(x)
should return true.Symmetric: for any non-null values
x
andy
,x.equals(y)
should return true if and only ify.equals(x)
returns true.Transitive: for any non-null values
x
,y
, andz
, ifx.equals(y)
returns true andy.equals(z)
returns true, thenx.equals(z)
should return true.Consistent: for any non-null values
x
andy
, multiple invocations ofx.equals(y)
consistently return true or consistently return false, provided no information used inequals
comparisons on the objects is modified.Never equal to null: for any non-null value
x
,x.equals(null)
should return false.
Read more about equality in Kotlin.
Since Kotlin
1.8Indicates whether some other object is "equal to" this one. Implementations must fulfil the following requirements:
Reflexive: for any non-null value
x
,x.equals(x)
should return true.Symmetric: for any non-null values
x
andy
,x.equals(y)
should return true if and only ify.equals(x)
returns true.Transitive: for any non-null values
x
,y
, andz
, ifx.equals(y)
returns true andy.equals(z)
returns true, thenx.equals(z)
should return true.Consistent: for any non-null values
x
andy
, multiple invocations ofx.equals(y)
consistently return true or consistently return false, provided no information used inequals
comparisons on the objects is modified.Never equal to null: for any non-null value
x
,x.equals(null)
should return false.
Read more about equality in Kotlin.