2.6.0 ESLint 4.3 & Jest

Updated to ESLint 4.3 and added support for Jest testing framework.

Added

• Plugin eslint-plugin-jest with rules in /rules/jest.js and part of frontend
• ESLint rule prefer-numeric-literals: Disllow parseInt() and Number.parseInt() in favor of binary, octal, and hexadecimal literals
  • Defined in errors.js
  • Current value: "prefer-numeric-literals": "error"
• ESLint rule prefer-destructuring: Prefer destructuring from arrays and objects.
  • Defined in variables.js
  • Current value:

    "prefer-destructuring": [
        "error", {
            object: true,
            array : true,
        }, {
            enforceForRenamedProperties: true,
        },
    ],

  • Sample:

    const array = [ 1,2,3,4,5 ]
    const lorem = {
        bar: "ipsum",
        foo: "dolor",
    }
    
    // const someIndex = 2
    // const foo = array[ someIndex ]
    const [ ,,foo ] = array
    
    // const bar = lorem.bar
    let { bar } = lorem;
    
    ( { bar } = {
        bar: 2,
        foo: 3,
    } );
    
    ( { foo: bar } = lorem )