Add 2.0 configs & docs

.eslintrc.yml

@@ -0,0 +1,186 @@
+env:
+  node:     true
+  browser:  false
+  # Postponed: enable partially (less on server, more on client)
+  es6: true
+
+parserOptions:
+  ecmaVersion: '2020'
+
+rules:
+  accessor-pairs:         2
+  #array-bracket-spacing:  [ 2, "always", { "singleValue": true, "objectsInArrays": true, "arraysInArrays": true } ]
+  block-scoped-var:       2
+  block-spacing:          2
+  brace-style:            [ 2, '1tbs', { "allowSingleLine": true } ]
+  # Postponed
+  #callback-return:        2
+  comma-dangle:           2
+  comma-spacing:          2
+  comma-style:            2
+  computed-property-spacing: [ 2, never ]
+  # Postponed
+  #consistent-return:      2
+  consistent-this:        [ 2, self ]
+  # ? change to multi
+  curly:                  [ 2, 'multi-line' ]
+  # Postponed
+  # dot-notation:           [ 2, { allowKeywords: true } ]
+  dot-location:           [ 2, 'property' ]
+  eol-last:               2
+  eqeqeq:                 2
+  #func-style:             [ 2, declaration ]
+  # Postponed
+  #global-require:         2
+  guard-for-in:           2
+  handle-callback-err:    2
+
+  # Postponed
+  indent:                 [ 2, 4, {
+    SwitchCase: 1,
+    MemberExpression: off,
+    CallExpression: { arguments: off },
+    ObjectExpression: off,
+    ArrayExpression: off
+  } ]
+
+  # key-spacing:            [ 2, { "align": "value" } ]
+  keyword-spacing:        2
+  linebreak-style:        2
+  #max-depth:              [ 1, 3 ]
+  #max-nested-callbacks:   [ 1, 5 ]
+  # string can exceed 80 chars, but should not overflow github website :)
+  #max-len:                [ 2, 120, 1000 ]
+  new-cap:                2
+  new-parens:             2
+  # Postponed
+  #newline-after-var:      2
+  no-alert:               2
+  no-array-constructor:   2
+  no-bitwise:             2
+  no-caller:              2
+  #no-case-declarations:   2
+  no-catch-shadow:        2
+  no-cond-assign:         2
+  no-console:             1
+  no-constant-condition:  2
+  #no-control-regex:       2
+  no-debugger:            1
+  no-delete-var:          2
+  no-div-regex:           2
+  no-dupe-args:           2
+  no-dupe-keys:           2
+  no-duplicate-case:      2
+  #no-else-return:         2
+  # Tend to drop
+  # no-empty:               1
+  no-empty-character-class: 2
+  no-empty-pattern:       2
+  no-eq-null:             2
+  no-eval:                2
+  no-ex-assign:           2
+  no-extend-native:       2
+  no-extra-bind:          2
+  no-extra-boolean-cast:  2
+  no-extra-semi:          2
+  no-fallthrough:         2
+  no-floating-decimal:    2
+  no-func-assign:         2
+  # Postponed
+  #no-implicit-coercion:   [2, { "boolean": true, "number": true, "string": true } ]
+  no-implied-eval:        2
+  no-inner-declarations:  2
+  no-invalid-regexp:      2
+  no-irregular-whitespace: 2
+  no-iterator:            2
+  no-label-var:           2
+  no-labels:              2
+  no-lone-blocks:         1
+  #no-lonely-if:           2
+  no-loop-func:           2
+  no-mixed-requires:      [ 1, { "grouping": true } ]
+  no-mixed-spaces-and-tabs: 2
+  # Postponed
+  #no-native-reassign:     2
+  no-negated-in-lhs:      2
+  # Postponed
+  #no-nested-ternary:      2
+  no-new:                 2
+  no-new-func:            2
+  no-new-object:          2
+  no-new-require:         2
+  no-new-wrappers:        2
+  no-obj-calls:           2
+  no-octal:               2
+  no-octal-escape:        2
+  no-path-concat:         2
+  no-proto:               2
+  no-redeclare:           2
+  # Postponed
+  #no-regex-spaces:        2
+  no-return-assign:       2
+  no-self-compare:        2
+  no-sequences:           2
+  # Postponed
+  #no-shadow:              2
+  no-shadow-restricted-names: 2
+  no-sparse-arrays:       2
+  # Postponed
+  #no-sync:                2
+  no-trailing-spaces:     2
+  no-undef:               2
+  #no-undef-init:          2
+  #no-undefined:           2
+  no-unexpected-multiline: 2
+  no-unreachable:         2
+  no-unused-expressions:  2
+  no-unused-vars:         2
+  #no-use-before-define:   2
+  #no-void:                2
+  no-with:                2
+  #object-curly-spacing:   [ 2, always, { "objectsInObjects": true, "arraysInObjects": true } ]
+  operator-assignment:    1
+  # Postponed
+  #operator-linebreak:     [ 2, after ]
+  semi:                   [ 2, never ]
+  semi-spacing:           2
+  space-before-function-paren: [ 2, { "anonymous": "always", "named": "never" } ]
+  space-in-parens:        [ 2, never ]
+  #space-infix-ops:        2
+  space-unary-ops:        2
+  # Postponed
+  #spaced-comment:         [ 1, always, { exceptions: [ '/', '=' ] } ]
+  strict:                 [ 2, global ]
+  quotes:                 [ 2, single, avoid-escape ]
+  quote-props:            [ 1, 'as-needed', { "keywords": false } ]
+  radix:                  2
+  use-isnan:              2
+  valid-typeof:           2
+  yoda:                   [ 2, never, { "exceptRange": true } ]
+
+  #
+  # es6
+  #
+  arrow-body-style:       [ 1, "as-needed" ]
+  arrow-parens:           [ 1, "as-needed" ]
+  arrow-spacing:          2
+  constructor-super:      2
+  generator-star-spacing: [ 2, {"before": false, "after": true } ]
+  no-class-assign:        2
+  no-confusing-arrow:     [ 1, { allowParens: true } ]
+  no-const-assign:        2
+  #no-constant-condition:  2
+  no-dupe-class-members:  2
+  no-this-before-super:   2
+  # Postponed
+  #no-var:                 2
+  #object-shorthand:       1
+  # Postponed
+  #prefer-arrow-callback:  1
+  # Postponed
+  #prefer-const:           1
+  #prefer-reflect
+  #prefer-spread
+  # Postponed
+  #prefer-template:        1
+  require-yield:          1

.github/FUNDING.yml

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+tidelift: "npm/argparse"

.gitignore

@@ -0,0 +1,2 @@
+node_modules
+.nyc_output

.travis.yml

@@ -0,0 +1,4 @@
+language: node_js
+node_js:
+ - 12
+ - node