Irina Glushko 2389e7160b HW1 done 3 年之前
..
bin 2389e7160b HW1 done 3 年之前
dist 2389e7160b HW1 done 3 年之前
ChangeLog 2389e7160b HW1 done 3 年之前
LICENSE.BSD 2389e7160b HW1 done 3 年之前
README.md 2389e7160b HW1 done 3 年之前
package.json 2389e7160b HW1 done 3 年之前

README.md

NPM version npm download Build Status Coverage Status

Esprima (esprima.org, BSD license) is a high performance, standard-compliant ECMAScript parser written in ECMAScript (also popularly known as JavaScript). Esprima is created and maintained by Ariya Hidayat, with the help of many contributors.

Features

API

Esprima can be used to perform lexical analysis (tokenization) or syntactic analysis (parsing) of a JavaScript program.

A simple example on Node.js REPL:

> var esprima = require('esprima');
> var program = 'const answer = 42';

> esprima.tokenize(program);
[ { type: 'Keyword', value: 'const' },
  { type: 'Identifier', value: 'answer' },
  { type: 'Punctuator', value: '=' },
  { type: 'Numeric', value: '42' } ]
  
> esprima.parseScript(program);
{ type: 'Program',
  body:
   [ { type: 'VariableDeclaration',
       declarations: [Object],
       kind: 'const' } ],
  sourceType: 'script' }

For more information, please read the complete documentation.