mozilla/nunjucks
Nunjucks
Nunjucks is a JavaScript templating engine used for generating dynamic HTML by combining data with templates. It serves as an asynchronous template processor that allows for non-blocking execution within filters and parallel processing of iterations.
The engine features a template inheritance system where base skeleton structures are defined and extended by child templates to fill specific content blocks. It includes a security utility for context-aware HTML escaping to prevent cross-site scripting during the rendering phase.
The library provides capabilities for server-side rendering and data-driven content formatting using modular data transformation filters. It also implements filesystem-based template resolution to locate and load files from the disk using configurable search paths.
Features
- HTML Templating Engines - A JavaScript engine that combines data with templates to generate dynamic HTML content.
- Asynchronous Control Flows - Provides non-blocking execution of template logic and filters using promises to optimize rendering performance.
- Asynchronous Task Processors - Processes templates asynchronously, allowing for non-blocking calls within filters and parallel iteration.
- Block-Based Inheritance - Allows the definition of skeleton layouts with named blocks that can be overridden by child templates.
- Server-Side Rendering - Generates full HTML pages on the server before sending them to the client to improve SEO and load times.
- Template Inheritance Systems - Enables a consistent website layout through a system where child templates extend base skeleton layouts.
- Data Formatting Utilities - Transforms raw data into human-readable formats using custom filters for sorting, grouping, and styling.
- Transformation Chains - Processes variables through a chain of modular filters to modify output formatting without altering source data.
- Template Variable Transformers - Provides a set of built-in and custom filters to modify variables during the rendering process.
- Module Path Resolution - Locates template files on the disk using standard module resolution logic.
- Template Path Resolution - Implements a filesystem-based resolution mechanism to locate and load template files via configurable search paths.
- Abstract Syntax Tree Parsing - Implements a parser that converts template strings into an abstract syntax tree before compiling them into JavaScript functions.
- Asynchronous Execution - Optimizes rendering by enabling asynchronous calls within filters and parallel processing of iterations.
- Escaping Utilities - Includes a security utility that automatically encodes special characters in dynamic expressions to prevent cross-site scripting.
- Template Engines - Jinja2-inspired template engine with inheritance and async support.
- Templating - Jinja2-inspired templating engine with inheritance.
