Adds basic repo boilerplate

.depcheckrc

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+ignores: ["@yarnpkg/sdks", "depcheck", "prettier", "@yarnpkg/pnpify"]

.editorconfig

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+# editorconfig.org
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+indent_style = space
+indent_size = 2
+trim_trailing_whitespace = true
+
+[*.md]
+trim_trailing_whitespace = false
+indent_size = 3
+
+[*.hbs]
+trim_trailing_whitespace = false
+insert_final_newline = false
+indent_style = space
+indent_size = 2

.eslintignore

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+.gitignore
+.git/*
+.yarn/*
+**/docs/*
+**/package.json
+**/node_modules/*
+**/build/*
+**/dist/*
+**/builds/*
+**/coverage/*
+**/.yarn/*
+*.testjs
+*.testts
+LICENSE

.eslintrc.js

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+/**
+ * Common jsdoc formatting rules
+ */
+const JSDOC_RULES = {
+  require: {
+    ArrowFunctionExpression: false,
+    ClassDeclaration: true,
+    ClassExpression: true,
+    FunctionDeclaration: true,
+    FunctionExpression: true,
+    MethodDefinition: true,
+  },
+  contexts: [
+    {
+      context: 'TSPropertySignature',
+      inlineCommentBlock: true,
+    },
+    'TSEnumDeclaration',
+    'TSTypeAliasDeclaration',
+    'FunctionDeclaration',
+    'ClassDeclaration',
+  ],
+};
+
+module.exports = {
+  globals: {
+    // Allow for self to be a mirror of window
+    self: true,
+  },
+  parser: '@typescript-eslint/parser',
+  extends: [
+    'airbnb-base',
+    'plugin:@typescript-eslint/recommended',
+    'plugin:jsdoc/recommended',
+    'plugin:eslint-comments/recommended',
+  ],
+  env: {
+    browser: true,
+    node: true,
+    jest: true,
+    es6: true,
+    mocha: true,
+  },
+  plugins: ['import', '@typescript-eslint', 'jsdoc'],
+  parserOptions: {
+    ecmaVersion: 6,
+    sourceType: 'module',
+    ecmaFeatures: {
+      jsx: true,
+    },
+  },
+  rules: {
+    // //////// //
+    // Disabled //
+    // //////// //
+
+    /** Handled by prettier */
+    'comma-dangle': 0,
+    'operator-linebreak': 0,
+    'implicit-arrow-linebreak': 0,
+    '@typescript-eslint/indent': 0,
+    'object-curly-newline': 0,
+    'template-curly-spacing': 0,
+    'newline-per-chained-call': 0,
+    'generator-star-spacing': 0,
+    'computed-property-spacing': 0,
+    'space-before-function-paren': 0,
+    indent: 0,
+    'function-paren-newline': 0,
+    'no-confusing-arrow': 0,
+    'no-multi-spaces': 0,
+    'object-property-newline': 0,
+    'brace-style': 0,
+
+    /** handled by no-restricted-syntax */
+    'guard-for-in': 0,
+
+    /**
+     * We prefer to use types instead of interfaces
+     *
+     * @see https://www.notion.so/transcend/Use-Type-instead-of-Interface-b3868d0885724b6894647018323a57b2
+     */
+    '@typescript-eslint/prefer-interface': 0,
+    '@typescript-eslint/interface-name-prefix': 0,
+    // when we do use interfaces, they are often empty
+    '@typescript-eslint/no-empty-interface': 0,
+
+    /** Use import lint rules */
+    '@typescript-eslint/no-var-requires': 0,
+
+    /**
+     * Sometimes its just fun to nest ternary....
+     *
+     * With prettier its not so bad. its best to avoid
+     * super deeply nest ternary statements but doing and if else if else is not bad
+     */
+    'no-nested-ternary': 0,
+
+    /**
+     * We use a custom pre-commit for import orders
+     *
+     * @see pre_commit_hooks/ordered_imports.js
+     */
+    'import/order': 0,
+
+    /** no types are required cuz we use typescript */
+    'jsdoc/require-param-type': 0,
+    'jsdoc/require-returns-type': 0,
+
+    /**
+     * TS allows for public syntax in constructor to make a constructor
+     * parameter assigned to the class instance. We use this often and so
+     * the constructor is often empty
+     */
+    'no-useless-constructor': 0,
+
+    /** Import rules we don't use */
+    'import/no-named-as-default': 0,
+    'import/extensions': 0,
+    'import/prefer-default-export': 0,
+
+    /** We use @typescript-eslint */
+    'no-use-before-define': 0,
+    'no-shadow': 0,
+    camelcase: 0,
+    'no-var-requires': 0,
+    'no-inferrable-types': 0,
+
+    // ///// //
+    // Rules //
+    // ///// //
+
+    /** Enforce === instead of == */
+    eqeqeq: ['error'],
+
+    /**
+     * Require class methods to call this. If you want a class
+     * method to not use this, you can workaround the rule by using
+     * arrow function syntax, i.e.
+     *
+     * `public myParam = () => []`
+     */
+    'class-methods-use-this': ['error'],
+
+    /**
+     * Type signatures should be combined if possible:
+     *
+     * @see https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/unified-signatures.md
+     */
+    '@typescript-eslint/unified-signatures': ['error'],
+
+    /**
+     * Group overrides next to each other
+     *
+     * @see https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/adjacent-overload-signatures.md
+     */
+    '@typescript-eslint/adjacent-overload-signatures': ['error'],
+
+    /**
+     * Explicitly specify return types to functions. This improves type safety
+     * and also allows compiler to optimize
+     *
+     * @see https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/explicit-function-return-type.md
+     * @see https://www.notion.so/transcend/4ef10ad243b746d9b2a84f8bb4a1b01a?v=8eb2ce8c21d54b43a916e7f93a563950&p=36b3bd33e054443084d2759537e6423b
+     */
+    '@typescript-eslint/explicit-function-return-type': [
+      'error',
+      { allowExpressions: true },
+    ],
+    '@typescript-eslint/explicit-module-boundary-types': 0,
+
+    /** JSdoc Validation */
+    'jsdoc/require-jsdoc': ['error', JSDOC_RULES],
+    'jsdoc/check-types': ['error'],
+    'jsdoc/check-param-names': ['error', { checkDestructured: false }],
+    'jsdoc/require-returns': ['error'],
+    'jsdoc/no-types': ['error'],
+    'jsdoc/require-param': ['error', { checkDestructured: false }],
+    'jsdoc/require-param-description': ['error'],
+    'jsdoc/require-returns-description': ['error'],
+    'jsdoc/require-hyphen-before-param-description': ['error'],
+    'jsdoc/require-description': [
+      'error',
+      {
+        contexts: JSDOC_RULES.contexts.map(
+          (context) => context.context || context,
+        ),
+      },
+    ],
+
+    /** Import validation */
+    'import/imports-first': ['error'],
+    'import/newline-after-import': ['error'],
+    'import/no-dynamic-require': ['error'],
+    'import/no-unresolved': ['error'],
+    'import/no-webpack-loader-syntax': ['error'],
+
+    /**
+     * Console log statements are normally used in debugging.
+     * Instead we should use event manager on backend, or create and
+     * use a singleton logger instance in each class.
+     *
+     * As a workaround you can set `const logger = console` and run `logger.log()`
+     */
+    'no-console': ['error'],
+
+    /** Use template strings for concatenation */
+    'prefer-template': ['error'],
+
+    /**
+     * Limits on file size to make them digestible and
+     *
+     * Limit line length to make code accessible on smaller screens.
+     */
+    'max-len': ['error', 125, { comments: 150 }],
+
+    /** Require curly brackets around newlines */
+    curly: ['error'],
+
+    /** Ensure eslint-disable is not present when its not disabling any rule */
+    'eslint-comments/no-unused-disable': ['error'],
+
+    /** Arrow functions should have parentheses around inputs */
+    'arrow-parens': ['error', 'always'],
+    'arrow-body-style': ['error', 'as-needed'],
+
+    /** Max lines in a file */
+    'max-lines': ['error', 350],
+
+    /** Generator functions should call `yield` */
+    'require-yield': ['error'],
+
+    /** Prefer for-of to for loop (in general we prefer map/forEach over for of as well) */
+    '@typescript-eslint/prefer-for-of': ['error'],
+
+    /** Should not alias this to another command */
+    '@typescript-eslint/no-this-alias': ['error'],
+
+    /** Prevent use of global variables */
+    'no-restricted-globals': ['error'],
+
+    /** No unnecessary async statements on a function */
+    'require-await': ['error'],
+
+    // TODO: https://github.com/benmosher/eslint-plugin-import/pull/1696 - Remove overrides,
+    // PR is merging soon -- 9/2/2020
+    'import/no-extraneous-dependencies': 0,
+
+    // No unused imports or variables. Convenient for pre-commit hook.
+    '@typescript-eslint/no-unused-vars': ['error'],
+
+    /** We want to eventually turn this to an error */
+    '@typescript-eslint/ban-types': ['error'],
+    '@typescript-eslint/no-explicit-any': ['error'],
+  },
+  settings: {
+    /** Allow for typescript alias resolution */
+    'import/resolver': {
+      typescript: {},
+    },
+  },
+};

.gitattributes

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+/.yarn/** linguist-vendored

.github/PULL_REQUEST_TEMPLATE.md

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+## Related Issues
+
+- _[none]_
+
+## Security Implications
+
+_[none]_
+
+## System Availability
+
+_[none]_