add linting config to the project

.editorconfig

@@ -0,0 +1,13 @@
+# top-most EditorConfig file
+root = true
+
+# Unix-style newlines with a newline ending every file
+[*]
+end_of_line = lf
+insert_final_newline = true
+
+# Set default charset
+[*.{js}]
+charset = utf-8
+indent_style = space
+indent_size = 4

.eslintrc

@@ -0,0 +1,11 @@
+{
+    "extends": "standard",
+    "rules": {
+        "comma-dangle": ["error", "always"],
+        "semi": [1,"always"],
+        "indent": ["error", 4],
+        "quotes": ["error", "double", {
+            "avoidEscape": true
+        }]
+    }
+}

Dockerfile

@@ -1,10 +1,10 @@
 
 FROM node:8.9.4
 
-RUN mkdir /src
 WORKDIR /src
+
 COPY . /src
 
-RUN npm install -g [email protected]
+RUN npm install
 
-RUN npm run link
+RUN npm run link

constants.js

@@ -43,37 +43,37 @@ const SYMBOLS = {
     R_BRACKET: ")",
     L_SQ_BRACKET: "[",
     R_SQ_BRACKET: "]",
-    STATEMENT_TERMINATOR : ";",
+    STATEMENT_TERMINATOR: ";",
     NEW_LINE: "\n",
     TAB_SPACE: "\t",
     EMPTY_SPACE: " ",
     EXCLAMATION_POINT: "!",
     PIPE: "|",
     COLON: ":",
-    BACK_TICK: "`"
+    BACK_TICK: "`",
 };
 
 const LIST = {
-    PUNCTUATIONS: [ 
+    PUNCTUATIONS: [
         SYMBOLS.L_BRACKET, SYMBOLS.R_BRACKET, SYMBOLS.L_PAREN,
         SYMBOLS.R_PAREN, SYMBOLS.STATEMENT_TERMINATOR, SYMBOLS.COMMA,
-        SYMBOLS.L_SQ_BRACKET, SYMBOLS.R_SQ_BRACKET, SYMBOLS.COLON, SYMBOLS.BACK_TICK
+        SYMBOLS.L_SQ_BRACKET, SYMBOLS.R_SQ_BRACKET, SYMBOLS.COLON, SYMBOLS.BACK_TICK,
     ],
     OPERATORS: [
         SYMBOLS.PLUS, SYMBOLS.MINUS, SYMBOLS.MULTIPLY,
         SYMBOLS.DIVIDE, SYMBOLS.REMAINDER, SYMBOLS.L_THAN,
-        SYMBOLS.G_THAN, SYMBOLS.EQ, SYMBOLS.EXCLAMATION_POINT, 
+        SYMBOLS.G_THAN, SYMBOLS.EQ, SYMBOLS.EXCLAMATION_POINT,
         SYMBOLS.PIPE, SYMBOLS.BINARY_AND, SYMBOLS.ASSIGN,
     ],
-    WHITESPACES: [ 
-        SYMBOLS.EMPTY_SPACE, SYMBOLS.TAB_SPACE, SYMBOLS.NEW_LINE 
+    WHITESPACES: [
+        SYMBOLS.EMPTY_SPACE, SYMBOLS.TAB_SPACE, SYMBOLS.NEW_LINE,
     ],
     KEYWORDS: [
-        KEYWORDS.JEKI, KEYWORDS.NIGBATI, KEYWORDS.SE, KEYWORDS.SOPE, 
-        KEYWORDS.TABI, KEYWORDS.OOTO, KEYWORDS.IRO, KEYWORDS.ISE, 
+        KEYWORDS.JEKI, KEYWORDS.NIGBATI, KEYWORDS.SE, KEYWORDS.SOPE,
+        KEYWORDS.TABI, KEYWORDS.OOTO, KEYWORDS.IRO, KEYWORDS.ISE,
         KEYWORDS.FUN, KEYWORDS.PADA, KEYWORDS.KURO, KEYWORDS.YI,
-        KEYWORDS.IRU, KEYWORDS.PADASI, KEYWORDS.GBE_WOLE, KEYWORDS.WOKE
-    ]
+        KEYWORDS.IRU, KEYWORDS.PADASI, KEYWORDS.GBE_WOLE, KEYWORDS.WOKE,
+    ],
 };
 
 const REGEX = {
@@ -98,7 +98,7 @@ const constants = {
     GET_JEKI: "getJeki",
     CALL_ISE: "callIse",
     EXP_PUNC: "expression_punctuations",
-    YL_EXT: ".yl"
+    YL_EXT: ".yl",
 };
 
 module.exports = constants;