Keltner Channel (KC) fixes issue #3

.eslintrc.js

@@ -1,28 +1,18 @@
 module.exports = {
-  'env': {
-    'browser': true,
-    'es2021': true,
+  env: {
+    browser: true,
+    es2021: true,
   },
-  'extends': [
-    'google',
-    'plugin:@typescript-eslint/eslint-recommended',
+  extends: [
+    'eslint:recommended',
+    'plugin:@typescript-eslint/recommended',
+    'prettier',
   ],
-  'parser': '@typescript-eslint/parser',
-  'parserOptions': {
-    'ecmaVersion': 13,
-    'sourceType': 'module',
-  },
-  'plugins': [
-    '@typescript-eslint',
-  ],
-  'rules': {
-    'max-len': 'off',
-    'no-unused-vars': 'off',
-    'valid-jsdoc': ['error', {
-      'requireReturnType': false,
-      'requireParamType': false,
-      'requireReturn': false,
-    }],
-    '@typescript-eslint/no-unused-vars': 'error',
+  parser: '@typescript-eslint/parser',
+  parserOptions: {
+    ecmaVersion: 13,
+    sourceType: 'module',
   },
+  plugins: ['@typescript-eslint'],
+  rules: {},
 };

.github/ISSUE_TEMPLATE/bug_report.md

@@ -4,14 +4,14 @@ about: Create a report to help us improve
 title: ''
 labels: ''
 assignees: ''
-
 ---
 
 **Describe the bug**
 A clear and concise description of what the bug is.
 
 **To Reproduce**
 Steps to reproduce the behavior:
+
 1. Go to '...'
 2. Click on '....'
 3. Scroll down to '....'
@@ -24,15 +24,17 @@ A clear and concise description of what you expected to happen.
 If applicable, add screenshots to help explain your problem.
 
 **Desktop (please complete the following information):**
- - OS: [e.g. iOS]
- - Browser [e.g. chrome, safari]
- - Version [e.g. 22]
+
+- OS: [e.g. iOS]
+- Browser [e.g. chrome, safari]
+- Version [e.g. 22]
 
 **Smartphone (please complete the following information):**
- - Device: [e.g. iPhone6]
- - OS: [e.g. iOS8.1]
- - Browser [e.g. stock browser, safari]
- - Version [e.g. 22]
+
+- Device: [e.g. iPhone6]
+- OS: [e.g. iOS8.1]
+- Browser [e.g. stock browser, safari]
+- Version [e.g. 22]
 
 **Additional context**
 Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -4,7 +4,6 @@ about: Suggest an idea for this project
 title: ''
 labels: ''
 assignees: ''
-
 ---
 
 **Is your feature request related to a problem? Please describe.**

.github/workflows/codeql-analysis.yml

@@ -9,14 +9,14 @@
 # the `language` matrix defined below to confirm you have the correct set of
 # supported CodeQL languages.
 #
-name: "CodeQL"
+name: 'CodeQL'
 
 on:
   push:
-    branches: [ main ]
+    branches: [main]
   pull_request:
     # The branches below must be a subset of the branches above
-    branches: [ main ]
+    branches: [main]
   schedule:
     - cron: '35 21 * * 1'
 
@@ -32,39 +32,39 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        language: [ 'javascript' ]
+        language: ['javascript']
         # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python', 'ruby' ]
         # Learn more about CodeQL language support at https://git.io/codeql-language-support
 
     steps:
-    - name: Checkout repository
-      uses: actions/checkout@v2
+      - name: Checkout repository
+        uses: actions/checkout@v2
 
-    # Initializes the CodeQL tools for scanning.
-    - name: Initialize CodeQL
-      uses: github/codeql-action/init@v1
-      with:
-        languages: ${{ matrix.language }}
-        # If you wish to specify custom queries, you can do so here or in a config file.
-        # By default, queries listed here will override any specified in a config file.
-        # Prefix the list here with "+" to use these queries and those in the config file.
-        # queries: ./path/to/local/query, your-org/your-repo/queries@main
+      # Initializes the CodeQL tools for scanning.
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v1
+        with:
+          languages: ${{ matrix.language }}
+          # If you wish to specify custom queries, you can do so here or in a config file.
+          # By default, queries listed here will override any specified in a config file.
+          # Prefix the list here with "+" to use these queries and those in the config file.
+          # queries: ./path/to/local/query, your-org/your-repo/queries@main
 
-    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
-    # If this step fails, then you should remove it and run the build manually (see below)
-    - name: Autobuild
-      uses: github/codeql-action/autobuild@v1
+      # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
+      # If this step fails, then you should remove it and run the build manually (see below)
+      - name: Autobuild
+        uses: github/codeql-action/autobuild@v1
 
-    # ℹ️ Command-line programs to run using the OS shell.
-    # 📚 https://git.io/JvXDl
+      # ℹ️ Command-line programs to run using the OS shell.
+      # 📚 https://git.io/JvXDl
 
-    # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
-    #    and modify them (or add more) to build your code if your project
-    #    uses a compiled language
+      # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
+      #    and modify them (or add more) to build your code if your project
+      #    uses a compiled language
 
-    #- run: |
-    #   make bootstrap
-    #   make release
+      #- run: |
+      #   make bootstrap
+      #   make release
 
-    - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v1
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v1

.prettierrc.json

@@ -0,0 +1,3 @@
+{
+  "singleQuote": true
+}

.travis.yml

@@ -1,4 +1,4 @@
 language: node_js
 
 node_js:
-- 16
+  - 16

CODE_OF_CONDUCT.md

@@ -17,23 +17,23 @@ diverse, inclusive, and healthy community.
 Examples of behavior that contributes to a positive environment for our
 community include:
 
-* Demonstrating empathy and kindness toward other people
-* Being respectful of differing opinions, viewpoints, and experiences
-* Giving and gracefully accepting constructive feedback
-* Accepting responsibility and apologizing to those affected by our mistakes,
+- Demonstrating empathy and kindness toward other people
+- Being respectful of differing opinions, viewpoints, and experiences
+- Giving and gracefully accepting constructive feedback
+- Accepting responsibility and apologizing to those affected by our mistakes,
   and learning from the experience
-* Focusing on what is best not just for us as individuals, but for the
+- Focusing on what is best not just for us as individuals, but for the
   overall community
 
 Examples of unacceptable behavior include:
 
-* The use of sexualized language or imagery, and sexual attention or
+- The use of sexualized language or imagery, and sexual attention or
   advances of any kind
-* Trolling, insulting or derogatory comments, and personal or political attacks
-* Public or private harassment
-* Publishing others' private information, such as a physical or email
+- Trolling, insulting or derogatory comments, and personal or political attacks
+- Public or private harassment
+- Publishing others' private information, such as a physical or email
   address, without their explicit permission
-* Other conduct which could reasonably be considered inappropriate in a
+- Other conduct which could reasonably be considered inappropriate in a
   professional setting
 
 ## Enforcement Responsibilities
@@ -106,7 +106,7 @@ Violating these terms may lead to a permanent ban.
 ### 4. Permanent Ban
 
 **Community Impact**: Demonstrating a pattern of violation of community
-standards, including sustained inappropriate behavior,  harassment of an
+standards, including sustained inappropriate behavior, harassment of an
 individual, or aggression toward or disparagement of classes of individuals.
 
 **Consequence**: A permanent ban from any sort of public interaction within

README.md

@@ -6,7 +6,7 @@
 
 Indicator is a TypeScript module providing various stock technical analysis indicators, strategies, and a backtest framework for trading.
 
-*This is a clone of my [Indicator Go](https://github.com/cinar/indicator) Golang module.*
+_This is a clone of my [Indicator Go](https://github.com/cinar/indicator) Golang module._
 
 ## Indicators Provided
 
@@ -50,6 +50,7 @@ The following list of indicators are currently supported by this package:
 - [Bollinger Band Width](src/indicator/volatility/index.md#bollinger-band-width)
 - [Bollinger Bands](src/indicator/volatility/index.md#bollinger-bands)
 - [Chandelier Exit](src/indicator/volatility/index.md#chandelier-exit)
+- [Keltner Channel (KC)](src/indicator/volatility/index.md#keltner-channel-kc)
 - [Moving Standard Deviation (Std)](src/indicator/volatility/index.md#moving-standard-deviation-std)
 - [Projection Oscillator (PO)](src/indicator/volatility/index.md#projection-oscillator-po)
 - [Ulcer Index (UI)](src/indicator/volatility/index.md#ulcer-index-ui)

jest.config.cjs

@@ -2,7 +2,5 @@
 module.exports = {
   preset: 'ts-jest',
   testEnvironment: 'node',
-  testMatch: [
-    '**/*.test.ts',
-  ],
-};
+  testMatch: ['**/*.test.ts'],
+};