Add Javascript coding standard and lint files

js/.editorconfig

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+# EditorConfig helps developers define and maintain consistent coding styles between different editors and IDEs.
+
+# Set this file as the topmost .editorconfig
+# (multiple files can be used, and are applied starting from current document location)
+root = true
+
+# Use hard or soft tabs ["tab", "space"]
+indent_style = space
+
+# Size of a single indent [an integer, "tab"]
+indent_size = tab
+
+# Number of columns representing a tab character [an integer]
+tab_width = 4
+
+# Line breaks representation ["lf", "cr", "crlf"]
+end_of_line = lf
+
+# ["latin1", "utf-8", "utf-16be", "utf-16le"]
+charset = utf-8
+
+# Remove any whitespace characters preceding newline characters ["true", "false"]
+trim_trailing_whitespace = true
+
+# Ensure file ends with a newline when saving ["true", "false"]
+insert_final_newline = true

js/.jscsrc

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+
+{
+    "requireCurlyBraces": [
+        "if",
+        "else",
+        "for",
+        "while",
+        "do"
+    ],
+    "requireSpaceAfterKeywords": [
+        "if",
+        "else",
+        "for",
+        "while",
+        "do",
+        "switch",
+        "return",
+        "catch"
+    ],
+    "disallowKeywords": [
+        "with"
+    ],
+    "disallowKeywordsOnNewLine": [
+        "else",
+        "catch"
+    ],
+
+    "disallowSpaceAfterPrefixUnaryOperators": true,
+    "disallowSpaceBeforePostfixUnaryOperators": [
+        "++",
+        "--"
+    ],
+    "requireSpaceBeforeBinaryOperators": true,
+    "requireSpaceAfterBinaryOperators": true,
+
+    "disallowSpacesInsideParentheses": true,
+    "disallowEmptyBlocks": true,
+
+    "requireParenthesesAroundIIFE": true,
+    "requireSpacesInFunctionDeclaration": {
+        "beforeOpeningCurlyBrace": true
+    },
+    "disallowSpacesInFunctionDeclaration": {
+        "beforeOpeningRoundBrace": true
+    },
+    "requireSpacesInAnonymousFunctionExpression": {
+        "beforeOpeningCurlyBrace": true
+    },
+    "disallowSpacesInNamedFunctionExpression": {
+        "beforeOpeningRoundBrace": true
+    },
+    "requireSpacesInNamedFunctionExpression": {
+        "beforeOpeningCurlyBrace": true
+    },
+
+    "requireSpacesInConditionalExpression": {
+        "afterTest": true,
+        "beforeConsequent": true,
+        "afterConsequent": true,
+        "beforeAlternate": true
+    },
+
+    "disallowSpaceBeforeBinaryOperators": [
+        ","
+    ],
+    "requireCommaBeforeLineBreak": true,
+
+    "validateQuoteMarks": "'",
+    "disallowMultipleLineStrings": true,
+
+    "disallowImplicitTypeConversion": [
+        "numeric",
+        "boolean",
+        "binary",
+        "string"
+    ],
+    "disallowYodaConditions": true,
+
+    "disallowSpacesInsideArrayBrackets": true,
+
+    "requireDotNotation": true,
+    "disallowSpaceAfterObjectKeys": true,
+    "disallowQuotedKeysInObjects": "allButReserved",
+
+    "validateJSDoc": {
+        "checkParamNames": true,
+        "requireParamTypes": true
+    },
+
+    "maximumLineLength": {
+        "value": 120,
+        "allowUrlComments": true
+    },
+    "requireSpaceAfterLineComment": true,
+    "requireLineFeedAtFileEnd": true,
+    "disallowMultipleLineBreaks": true,
+    "disallowMixedSpacesAndTabs": true,
+    "disallowTrailingWhitespace": true,
+    "validateLineBreaks": "LF",
+
+    "excludeFiles": ["node_modules/**"]
+}

js/.jshintrc

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+{
+    "strict": true,
+    "curly": true,
+    "camelcase": true,
+    "undef": true,
+    "latedef": "nofunc",
+    "eqeqeq": true,
+    "browser": true,
+    "node": true,
+    "es3": true,
+    "es5": false,
+    "esnext": false,
+    "moz": false,
+    "newcap": true,
+    "quotmark": "single",
+    "maxlen": 120,
+    "indent": 4,
+    "noarg": true,
+    "bitwise": false,
+    "unused": true,
+    "globals": {
+        "define": false,
+        "require": false,
+
+        "describe"   : false,
+        "it"         : false,
+        "before"     : false,
+        "beforeEach" : false,
+        "after"      : false,
+        "afterEach"  : false
+    }
+}