janl/mustache.js
Mustache.js
Mustache.js is a logic-less JavaScript templating engine and implementation of the Mustache specification. It merges data objects with text templates to generate formatted output, ensuring consistent rendering across different programming languages by forbidding complex logic within the templates.
The system distinguishes itself by using a logic-less approach to data binding, relying on simple variable interpolation and conditional block rendering. It supports modularity through partial template inclusion and allows for extended functionality via lambda functions that transform blocks of template text.
The library covers a broad range of capabilities including recursive variable resolution, inverted section handling, and HTML content escaping to prevent cross-site scripting. It also provides a command line interface for processing templates and data objects into text files and utilizes token-based caching to accelerate subsequent rendering cycles.
Features
- Logic-less Template Engines - Implements a logic-less templating engine that maps data to structured output without embedded programming logic.
- Hierarchical Variable Resolvers - Resolves variables by searching the current context and traversing up through parent contexts.
- Specification Implementations - Provides a JavaScript implementation of the Mustache specification for consistent rendering across different languages.
- Template Interpolation - Injects data values into templates using tags with options for escaped or raw output.
- Contextual Scope Traversers - Searches for data keys in the current scope and recursively climbs up parent contexts until a value is found.
- Conditional Section Inversions - Provides a mechanism to render specific blocks of text only when a data key is missing or falsy.
- Conditional Rendering - Displays or repeats sections of a template based on the truthiness of specific data keys.
- Conditional Rendering - Implements logic for displaying or repeating template sections based on runtime data conditions.
- Template Text Transformations - Supports custom lambda functions that receive and transform raw template text blocks during rendering.
- Template Caches - Caches parsed token trees in memory to eliminate the need for repeated template parsing.
- Template Partials - Provides reusable template fragments that can be embedded into other templates with dynamic parameters.
- Character Escaping - Uses replaceable functions to encode special characters in variables to prevent cross-site scripting attacks.
- Output Escaping - Encodes special characters in variables to prevent cross-site scripting and other injection attacks in web output.
- Escaping Utilities - Enables users to redefine the default escaping function to control how variables are sanitized for output.
- Data Interpolation - Injects values into templates using configurable delimiters and custom escaping to avoid syntax conflicts.
- Partial Templates - Supports the insertion of reusable sub-templates or fragments into a main template for modularity.
- Template Block Transformers - Supports executing custom functions to transform specific blocks of template text during the rendering process.
- HTML Templating Engines - Generates dynamic HTML content by injecting data into JavaScript templates on the client side.
- Template Engines - Minimalist logic-less template engine.
- Templating Engines - Minimal templating with mustache syntax.
