Tests whether a property exists or not. This can be less expensive than getValue(String), because it does not have to allocate an Object for the property value.

actual operator fun contains(key: String): Boolean

equals

open operator override fun equals(other: Any?): Boolean

get

operator fun Dictionary.get(key: String): Fragment

Subscript access to a Fragment object by key.

getArray

expect open fun getArray(key: String): Array?

Get a property's value as an Array, which is a mapping object of an array value. Returns null if the property doesn't exist, or its value is not an array.

actual open fun getArray(key: String): Array?

getBlob

expect fun getBlob(key: String): Blob?

Gets a property's value as a Blob. Returns null if the value doesn't exist, or its value is not a Blob.

actual fun getBlob(key: String): Blob?

actual open fun getBlob(key: String): Blob?

getBoolean

expect fun getBoolean(key: String): Boolean

Gets a property's value as a boolean. Returns true if the value exists, and is either true or a nonzero number.

actual fun getBoolean(key: String): Boolean

getDate

expect fun getDate(key: String): Instant?

Gets a property's value as a Date. JSON does not directly support dates, so the actual property value must be a string, which is then parsed according to the ISO-8601 date format (the default used in JSON.) Returns null if the value doesn't exist, is not a string, or is not parsable as a date. NOTE: This is not a generic date parser! It only recognizes the ISO-8601 format, with or without milliseconds.

actual fun getDate(key: String): Instant?

getDictionary

expect open fun getDictionary(key: String): Dictionary?

Get a property's value as a Dictionary, which is a mapping object of a dictionary value. Returns null if the property doesn't exist, or its value is not a dictionary.

actual open fun getDictionary(key: String): Dictionary?

getDouble

expect fun getDouble(key: String): Double

Gets a property's value as a double. Integers will be converted to double. The value true is returned as 1.0, false as 0.0. Returns 0.0 if the property doesn't exist or does not have a numeric value.

actual fun getDouble(key: String): Double

getFloat

expect fun getFloat(key: String): Float

Gets a property's value as a float. Integers will be converted to float. The value true is returned as 1.0, false as 0.0. Returns 0.0 if the value doesn't exist or does not have a numeric value.

actual fun getFloat(key: String): Float

getInt

expect fun getInt(key: String): Int

Gets a property's value as an int. Floating point values will be rounded. The value true is returned as 1, false as 0. Returns 0 if the value doesn't exist or does not have a numeric value.

actual fun getInt(key: String): Int

getLong

expect fun getLong(key: String): Long

Gets a property's value as a long. Floating point values will be rounded. The value true is returned as 1, false as 0. Returns 0 if the value doesn't exist or does not have a numeric value.

actual fun getLong(key: String): Long

getNumber

expect fun getNumber(key: String): Number?

Gets a property's value as a Number. Returns null if the value doesn't exist, or its value is not a Number.

actual fun getNumber(key: String): Number?

getString

expect fun getString(key: String): String?

Gets a property's value as a String. Returns null if the value doesn't exist, or its value is not a String.

actual fun getString(key: String): String?

getValue

expect fun getValue(key: String): Any?

Gets a property's value as an object. The object types are Blob, Array, Dictionary, Number, or String based on the underlying data type; or nil if the property value is null or the property doesn't exist.

actual open fun getValue(key: String): Any?