lotta - v0.1.1

lotta/object

Types

Object

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JavaScript Object Type

pub type Object

Functions

assign

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pub fn assign(target: Object, source: Object) -> Bool

Copies all enumerable own properties from one or more source objects to a target object. It returns the modified target object.

entries

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pub fn entries(object: Object) -> Array(#(String, Dynamic))

Returns an array of a given object’s own enumerable string-keyed property key-value pairs.

freeze

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pub fn freeze(object: Object) -> Object

Freezes an object. Freezing an object prevents extensions and makes existing properties non-writable and non-configurable. A frozen object can no longer be changed: new properties cannot be added, existing properties cannot be removed, their enumerability, configurability, writability, or value cannot be changed, and the object’s prototype cannot be re-assigned. freeze() returns the same object that was passed in.

from_entries

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pub fn from_entries(entries: List(#(String, Dynamic))) -> Object

Transforms a list of key-value pairs into an object.

get

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pub fn get(
  object: Object,
  attribute: String,
) -> Result(Dynamic, List(DecodeError))

Get an attribute from an Object if it exists

get_own_property_names

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pub fn get_own_property_names(object: Object) -> Array(String)

Returns an array of all properties (including non-enumerable properties except for those which use Symbol found directly in a given object.

get_own_property_symbols

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pub fn get_own_property_symbols(object: Object) -> Array(Symbol)

Returns an array of all symbol properties found directly upon a given object.

has_own

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pub fn has_own(object: Object, property: String) -> Bool

Returns True if the specified object has the indicated property as its own property. If the property is inherited, or does not exist, the method returns False.

is

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pub fn is(a: a, b: a) -> Bool

Determines whether two values are the same value.

is_extensible

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pub fn is_extensible(object: Object) -> Bool

Determines if an object is extensible (whether it can have new properties added to it).

is_frozen

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pub fn is_frozen(object: Object) -> Bool

Determines if an object is frozen.

is_sealed

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pub fn is_sealed(object: Object) -> Bool

Determines if an object is sealed.

keys

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pub fn keys(object: Object) -> Array(String)

Returns an array of a given object’s own enumerable string-keyed property names.

prevent_extensions

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pub fn prevent_extensions(object: Object) -> Object

Prevents new properties from ever being added to an object (i.e. prevents future extensions to the object). It also prevents the object’s prototype from being re-assigned.

seal

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pub fn seal(object: Object) -> Object

Seals an object. Sealing an object prevents extensions and makes existing properties non-configurable. A sealed object has a fixed set of properties: new properties cannot be added, existing properties cannot be removed, their enumerability and configurability cannot be changed, and its prototype cannot be re-assigned. Values of existing properties can still be changed as long as they are writable. seal() returns the same object that was passed in.

to_object

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pub fn to_object(a: a) -> Result(Object, Nil)

Converts the value into an Object type if it is an object

values

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pub fn values(object: Object) -> Array(Dynamic)

Returns an array of a given object’s own enumerable string-keyed property values.

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