Token Location Token Location By default, each token in the array returned by the tokenizer only has two properties, the type of the token and the lexeme. For some use cases, t...

Chapter 1. Getting Started Chapter 1. Getting Started Esprima is a tool to perform lexical and syntactical analysis of JavaScript programs. Esprima itself is also written in Ja...

JSX Syntax Support JSX Syntax Support JSX is a syntax extension to JavaScript, popularly known to build web applications using React . JSX is not part of any official ECMAScri...

Handling Hashbang/Shebang Handling Hashbang/Shebang In a Unix environment, a shell script often has its first line marked by a hashbang or a shebang, #! . A common example is a...

Limitation on Keywords Limitation on Keywords Since a tokenization process does not have the context of the syntactic structure, it is unable to infer properly that a particula...

Node Location Node Location By default, Esprima parser produces an abstract syntax tree . For some uses cases, this abstract syntax tree is not sufficient. For instance, having...

Token Collection Token Collection When Esprima parser is performing the syntactical analysis, first it needs to break down the source into a series of tokens. By default, the t...

Token Location Token Location By default, each token in the array returned by the tokenizer only has two properties, the type of the token and the lexeme. For some use cases, t...

JSX Syntax Support JSX Syntax Support JSX is a syntax extension to JavaScript, popularly known to build web applications using React . JSX is not part of any official ECMAScri...

Chapter 2. Syntactic Analysis (Parsing) Chapter 2. Syntactic Analysis (Parsing) The main use case of Esprima is to parse a JavaScript program. This is also known as syntactic a...