esmodule-builder
Version:
ECMAScript-Module (ES Module) builder.
361 lines (260 loc) • 9.08 kB
JavaScript
;
module.exports = {
env: {
node: true,
es6: true
},
plugins: ["prettier"],
extends: ["prettier"],
parserOptions: {
ecmaVersion: 9
},
globals: {
fetch: false,
WebAssembly: false
},
rules: {
// Require spacing around =>
"arrow-spacing": "error",
// Braces only needed for multi-line arrow function blocks
// "arrow-body-style": ["error", "as-needed"]
// Always require spacing around a single line block
"block-spacing": "error",
// No newline before open brace for a block
"brace-style": ["error", "1tbs", { allowSingleLine: true }],
// No space before always a space after a comma
"comma-spacing": ["error", { after: true, before: false }],
// Commas at the end of the line not the start
"comma-style": "error",
// Warn about cyclomatic complexity in functions.
// XXX Get this down to 20?
complexity: ["error", 25],
// Don't require spaces around computed properties
"computed-property-spacing": ["error", "never"],
// Functions must always return something or nothing
"consistent-return": "error",
// Require braces around blocks that start a new line
curly: ["error", "multi-line"],
// Encourage the use of dot notation whenever possible.
"dot-notation": "error",
// Always require a trailing EOL
"eol-last": "error",
// No spaces between function name and parentheses
"func-call-spacing": "error",
// Require function* name()
"generator-star-spacing": ["error", { after: true, before: false }],
// Two space indent
// "indent": ["error", 2, { "SwitchCase": 1 }],
// Space after colon not before in property declarations
"key-spacing": [
"error",
{
afterColon: true,
beforeColon: false,
mode: "minimum"
}
],
// Require spaces before and after keywords
"keyword-spacing": "error",
// Unix linebreaks
"linebreak-style": ["error", "unix"],
// Don't enforce the maximum depth that blocks can be nested. The complexity
// rule is a better rule to check this.
"max-depth": "off",
// Maximum depth callbacks can be nested.
"max-nested-callbacks": ["error", 10],
// Always require parenthesis for new calls
"new-parens": "error",
// Use [] instead of Array()
"no-array-constructor": "error",
// Disallow use of arguments.caller or arguments.callee.
"no-caller": "error",
// Disallow modifying variables of class declarations.
"no-class-assign": "error",
// Disallow assignment operators in conditional statements
"no-cond-assign": "error",
// Disallow modifying variables that are declared using const.
"no-const-assign": "error",
// Disallow control characters in regular expressions.
"no-control-regex": "error",
// Disallow the use of debugger
"no-debugger": "error",
// Disallow deleting variables
"no-delete-var": "error",
// No duplicate arguments in function declarations
"no-dupe-args": "error",
// Disallow duplicate class members.
"no-dupe-class-members": "error",
// No duplicate keys in object declarations
"no-dupe-keys": "error",
// No duplicate cases in switch statements
"no-duplicate-case": "error",
// If an if block ends with a return no need for an else block
"no-else-return": "error",
// No empty statements
"no-empty": ["error", { allowEmptyCatch: true }],
// No empty character classes in regex
"no-empty-character-class": "error",
// Disallow empty destructuring
"no-empty-pattern": "error",
// Disallow eval and setInteral/setTimeout with strings
"no-eval": "error",
// No assigning to exception variable
"no-ex-assign": "error",
// Disallow unnecessary calls to .bind()
"no-extra-bind": "error",
// No using !! where casting to boolean is already happening
"no-extra-boolean-cast": "error",
// No double semicolon
"no-extra-semi": "error",
// No overwriting defined functions
"no-func-assign": "error",
// Disallow eval and setInteral/setTimeout with strings
"no-implied-eval": "error",
// No invalid regular expressions
"no-invalid-regexp": "error",
// No odd whitespace characters
"no-irregular-whitespace": "error",
// Disallow the use of the __iterator__ property
"no-iterator": "error",
// No labels
"no-labels": "error",
// Disallow unnecessary nested blocks
"no-lone-blocks": "error",
// No single if block inside an else block
"no-lonely-if": "error",
// no-tabs disallows tabs completely.
// "no-mixed-spaces-and-tabs": "error",
// No unnecessary spacing
"no-multi-spaces": [
"error",
{
exceptions: {
ArrayExpression: true,
AssignmentExpression: true,
ObjectExpression: true,
VariableDeclarator: true
}
}
],
// No reassigning native JS objects
"no-native-reassign": "error",
// Nested ternary statements are confusing
"no-nested-ternary": "error",
// Use {} instead of new Object()
"no-new-object": "error",
// Dissallow use of new wrappers
"no-new-wrappers": "error",
// No Math() or JSON()
"no-obj-calls": "error",
// No octal literals
"no-octal": "error",
// No redeclaring variables
"no-redeclare": "error",
// Disallow multiple spaces in regular expressions
"no-regex-spaces": "error",
// Disallows unnecessary `return await ...`.
"no-return-await": "error",
// Disallow assignments where both sides are exactly the same
"no-self-assign": "error",
// No unnecessary comparisons
"no-self-compare": "error",
// No declaring variables from an outer scope
"no-shadow": "error",
// No declaring variables that hide things like arguments
"no-shadow-restricted-names": "error",
// Disallow sparse arrays
"no-sparse-arrays": "error",
// Disallow tabs.
"no-tabs": "error",
// No trailing whitespace
"no-trailing-spaces": "error",
// No using undeclared variables
"no-undef": "error",
// Error on newline where a semicolon is needed
"no-unexpected-multiline": "error",
// Disallow the use of Boolean literals in conditional expressions.
"no-unneeded-ternary": "error",
// No unreachable statements
"no-unreachable": "error",
// Disallow control flow statements in finally blocks
"no-unsafe-finally": "error",
// No (!foo in bar) or (!object instanceof Class)
"no-unsafe-negation": "error",
// No declaring variables that are never used
"no-unused-vars": [
"error",
{
args: "none",
vars: "local"
}
],
// No using variables before defined
"no-use-before-define": ["error", "nofunc"],
// Disallow unnecessary .call() and .apply()
"no-useless-call": "error",
// Don't concatenate string literals together (unless they span multiple
// lines)
"no-useless-concat": "error",
// Disallow redundant return statements
"no-useless-return": "error",
// Use const or let instead of var
"no-var": "error",
// Disallow whitespace before properties.
"no-whitespace-before-property": "error",
// No using with
"no-with": "error",
// Require object-literal shorthand with ES6 method syntax
"object-shorthand": ["error", "always", { avoidQuotes: true }],
// Use const instead of let where possible
"prefer-const": "error",
// Require double-quotes everywhere, except where quotes are escaped
// or template literals are used.
quotes: [
"error",
"double",
{
allowTemplateLiterals: true,
avoidEscape: true
}
],
// No spacing inside rest or spread expressions
"rest-spread-spacing": "error",
// Always require semicolon at end of statement
semi: ["error", "always"],
// Require space before blocks
"space-before-blocks": "error",
// Never use spaces before function parentheses
"space-before-function-paren": [
"error",
{
anonymous: "never",
asyncArrow: "always",
named: "never"
}
],
// No space padding in parentheses
"space-in-parens": ["error", "never"],
// Require spaces around operators
"space-infix-ops": ["error", { int32Hint: true }],
// ++ and -- should not need spacing
"space-unary-ops": [
"error",
{
nonwords: false,
overrides: {
typeof: false // We tend to use typeof as a function call
},
words: true
}
],
// Requires or disallows a whitespace (space or tab) beginning a comment
"spaced-comment": "error",
// No comparisons to NaN
"use-isnan": "error",
// Only check typeof against valid results
"valid-typeof": "error",
"prettier/prettier": "error",
"max-len": ["error", { code: 120, ignoreUrls: true }]
}
};