# DataStructure
The DataStructure component provides typed immutable-like data structures, built on top of php-ds (opens new window).
# Map
The Map component is in charge of extending DS\Map (opens new window) functionality.
# Creating Map
Create a Map by passing named arguments of any type.
use Chevere\DataStructure\Map;
$map = new Map(foo: $foo, bar: $bar);
# Putting value
The withPut
method is used to put a value to the Map at the given key.
$map = $map->withPut(foo: $foo, bar: $bar);
# Counting keys
The count
method returns the number of keys mapped.
$count = $map->count(); // integer
# Accessing keys
The keys
method is used to retrieve the map keys as an array.
$keys = $map->keys();
# Checking keys
The has
method is used to check if the Map contains the given key(s).
$map->has('foo'); // true
$map->has('notFound'); // throws Throwable
# Asserting keys
The assertHas
method is used to assert if the Map contains the given key(s).
$map->assertHas('foo'); // true
$map->assertHas('notFound'); // throws Throwable
# Get value
The get
method is used to retrieve the Map value for the given key.
$getFoo = $map->get('foo'); // $foo
$getBar = $map->get('bar'); // $bar
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