My JavaScript Code Style

JsCodeStyle.md

JavaScript Code Style

• Tab indentation
• Single-quotes
• Semicolon
• camelCase
• Strict mode
• No trailing whitespace
• Variables where needed
• Multiple variable statements
• Space after keywords and between arguments and operators
• Use === and !== over == and !=.
• Return early
• Limit line lengths to 120 chars
• Prefer readability over religion

Example:

'use strict';

function foo(bar, fum) {
    if (!bar) return;

    var hello = 'Hello';
    var ret = 0;
    for (var barIdx = 0; barIdx < bar.length; barIdx++) {
        if (bar[barIdx] === hello) {
            ret += fum(bar[barIdx]);
        }
    }

    return ret;
}

Read idiomatic.js for general JavaScript code style best practices.

.editorconfig

# editorconfig.org
root = true

[*]
indent_style = tab
end_of_line = lf
charset = utf-8
trim_trailing_whitespace = true
insert_final_newline = true

.jscs.json

{
	"requireCurlyBraces": ["for", "while", "do"],
	"requireSpaceAfterKeywords": ["if", "else", "for", "while", "do", "switch", "return"],
	"requireSpacesInFunctionExpression": { "beforeOpeningCurlyBrace": true },
	"disallowSpacesInFunctionExpression": { "beforeOpeningRoundBrace": true },
	"disallowMultipleVarDecl": true,
	"disallowSpacesInsideArrayBrackets": true,
	"disallowSpaceAfterObjectKeys": true,
	"disallowLeftStickedOperators": ["?", "=", "==", "===", "!=", "!==", ">", ">=", "<", "<="],
	"requireRightStickedOperators": ["!"],
	"disallowRightStickedOperators": ["?", ":", "=", "==", "===", "!=", "!==", ">", ">=", "<", "<="],
	"requireLeftStickedOperators": [","],
	"requireKeywordsOnNewLine": ["else"],
	"requireLineFeedAtFileEnd": true,
	"validateJSDoc": {
		"checkParamNames": true,
		"checkRedundantParams": true,
		"requireParamTypes": true
	},
	"excludeFiles": ["node_modules/**"]
}

.jshintrc

{
  "browser": true,
	"white": false,
	"smarttabs": true,
	"eqeqeq": true,
	"immed": true,
	"latedef": true,
	"newcap": true,
	"undef": true,
	"jquery": true,
	"globals": {
		"Modernizr": true
	}
}