Dictionaries

Merged Resource Dictionaries

Learn how MergedDictionaries lets you split XAML resources across multiple files, control precedence, and reference them across assemblies.

Resource Dictionaries in XAML

Learn how ResourceDictionary stores reusable brushes, styles, and templates in XAML, and how StaticResource and DynamicResource look them up.

Resource Dictionaries

How WPF ResourceDictionary objects store reusable styles, brushes, and templates, and how StaticResource, DynamicResource, and merged dictionaries work togethe…

Dictionaries and Collections in VBA

Comparing VBA's built-in Collection with the Scripting.Dictionary for storing keyed data, and choosing the right one for lookups, de-duplication, and counting.

Arrays and Dictionaries in Tcl

Understand Tcl's associative arrays and the modern dict command, and learn when to reach for each key-value structure.

Arrays vs Dictionaries in Lua

See how Lua uses one table type to model both array-like sequences and dictionary-like maps, and learn the rules that keep each style predictable.

Dictionaries in Python

Python's key-value mapping type, covering hashable keys, insertion order guarantees (3.7+), common dict methods, and typical gotchas.

Dictionaries and Sets in Swift

Understand Swift's key-value dictionaries and unique-element sets, including how Hashable powers both.

Dictionaries and Sets

Learn how Dictionary<TKey,TValue> and HashSet<T> use hashing for near-constant-time lookups, and how to use them correctly with custom key types.