A web application implementing a Javascript challenge framework

• Set challenge rules for required JS syntax that must (or must not) be used in the code
• Then you can write JS code in the embedded editor, and the code is checked against the challenge rules.
• To pass a challenge you must write valid JS code that satisifes the specified requirements

Installation

npm install
npm run dev

then go to http://localhost:8080/ in your browser of choice

Setting challenge rules

• The framework provides a declarative way of setting challenge rules, using a rules object
• The rules object is input to the application as a standard JSON string
• The following rules can be specified:
  • Must exist: {ForStatement: true}
  • Must not exist: {IfStatement: false}
  • Nested program structure: {WhileStatement: {IfStatement: true} }
  • Compounding multiple rules with "and" or "or" relations:

  {
    relation: 'and',
    rules: [
      {ForStatement: true},
      {WhileStatement: {IfStatement: false} },
      {
        relation: 'or',
        rules: [{CallExpression: true}]
      }
    ]
  }
  

  • And any nested combination of these rules as desired
  • Note: you can find a list of all supported syntax expression element names at https://github.com/jquery/esprima/blob/2.7/esprima.js#L106