Namespace collision
A namespace collision occurs when distinct software entities use the same identifier within a shared naming scope, causing ambiguity or conflict.
Modern C, Third Edition
A naming conflict is an unintended collision between names declared by different parts of a C program, library, implementation, or macro environment.
- How it is used
- Prevents application, library, implementation, and macro names from interfering across interfaces.
- How deep it goes
- Explains reserved names, exposure boundaries, prefixes, and macro-sensitive members and parameters, without detailing compiler name-resolution internals.
- Examples
- Uses prefixed and unprefixed function signatures plus examples of identifiers that are recognizable or difficult to distinguish.
- What you can do after
- Apply naming prefixes and limited API exposure to reduce collisions in C libraries and shared code.
Read how Modern C, Third Edition explains namespace collision →
React in Depth
- How it is used
- Frames CSS class-name collisions as a scaling risk when styling React components with ordinary CSS files.
- How deep it goes
- Explains global CSS collisions and their effects, but offers no implementation beyond naming schemes such as BEM.
- Examples
- Uses `.wrapper` and `.group` rules, including collisions between an embedded React app and a website.
- What you can do after
- Diagnose unintended cross-component styles caused by reused CSS class names.
Get Programming with JavaScript Next: New features of ECMAScript 2015, 2016, and beyond
An accidental conflict caused when distinct identifiers or values are mistaken for one another or map to the same name.
- How it is used
- Prevents unrelated flags from being mistaken for one another when functions or handlers identify actions by value.
- How deep it goes
- Explains the flag-confusion scenario and Symbol uniqueness, without detailing broader symbol behavior.
- Examples
- Uses tooltip position flags that accidentally match answer flags, then contrasts repeated Symbol descriptions.
- What you can do after
- Apply Symbol() to create unique flags that avoid accidental matches.
Related concepts
- namespaceaddressed by · A namespace is a naming context or identifier space in which names are defined and resolved, distinguishing them from names in other contexts.
- import aliasaddressed by · An import alias is an alternate name bound to an imported module, namespace, or other imported program element for use in source code.
- symboladdressed by · A symbol is a name or sign that represents or identifies a value, entity, operation, or concept within a notation or system.
- naming prefixaddressed by · A naming prefix is a distinctive character sequence placed at the beginning of related identifiers to reduce naming collisions.
- CSS scopeaddressed by · CSS scope is a language feature that limits style rules to elements within a specified region of a document.
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