ternjs/tern

Features

• Language Intelligence Services - Provides deep semantic analysis of JavaScript code to enable advanced navigation and understanding in editors.
• JSON Library Type Definitions - Utilizes JSON-based type definitions to describe library signatures and external dependencies without needing original source code.
• Semantic Code Analyzers - Performs semantic analysis to resolve symbols and find definitions and references within JavaScript code.
• Code Completion - Recommends variables and keywords at the cursor based on inferred types and documentation metadata.
• Editor Code Navigation - Provides essential capabilities for jumping to definitions, finding references, and renaming symbols across files.
• JavaScript Language Servers - Implements a backend language server that provides completion, symbol resolution, and refactoring for JavaScript.
• Language Server Implementations - Functions as an editor-independent analysis engine providing language intelligence services via a common interface.
• Custom Type Definitions - Uses JSON-based signatures to describe external library types when the original source code is unavailable.
• JavaScript Static Analysis - Analyzes JavaScript source code without execution to infer variable types and ensure project consistency.
• JavaScript Static Analyzers - Functions as a static analysis engine that parses JavaScript into abstract syntax trees to provide semantic intelligence.
• Static Type Inference - Determines data types by analyzing variable and property contexts without requiring manual type annotations.
• Symbol Definition Resolution - Locates the original declaration of a variable, function, or class by analyzing semantic information.
• Static Source Code Type Inference - Implements a core engine that infers JavaScript types by analyzing the abstract syntax tree of source code.
• Symbol Resolution - Provides a mechanism to map identifiers to their original declarations by analyzing semantic and type information.
• Expression Type Resolution - Determines the expected data types of expressions during the static analysis phase.
• Code Autocomplete Engines - Provides context-aware code completions for symbols and properties as the user types.
• Code Refactoring Tools - Provides capabilities to rename symbols and restructure code while maintaining logical consistency.
• Code Reference Locators - Implements the ability to search the syntax tree and locate every occurrence of a specific variable or property.
• External Dependency Resolvers - Locates and prepares external code dependencies using standard resolution strategies.
• JavaScript Symbol Resolvers - Provides the capability to locate variable definitions and find all references to specific symbols across a project.
• Type Determination - Retrieves the resulting data type of specific code expressions without executing the code.
• Expression Type Inspectors - Inspects and reports the static type of specific code expressions to assist with debugging.
• Function Argument Hints - Displays expected parameter types and descriptions when a function is invoked to ensure correct usage.
• Module Path Resolution - Implements rules for locating external code dependencies using industry-standard path and naming patterns.
• Parameter Usage Hints - Displays expected arguments for functions to help users call them with the correct parameters.
• User-Defined Types - Allows specifying function signatures and types via a structured format to describe external libraries.
• Automatic Variable Type Inference - Identifies the inferred type of specific expressions to ensure data consistency and correctness.
• Sponsored Projects - Funded through a community-driven crowdfunding campaign.
• Sustainable Project Examples - Releases language expansion packs via crowdfunded campaigns.

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