eslint-plugin-checkbugs

Checks for common sources of bugs and logic errors

Installation

You'll first need to install ESLint with NPM, Yarn, or your favorite package manager:

$ npm i eslint --save-dev
$ yarn add --dev eslint

Next, install eslint-plugin-checkbugs:

$ npm install eslint-plugin-checkbugs --save-dev
$ yarn add --dev eslint-plugin-checkbugs

Note: If you installed ESLint globally (using the -g flag) then you must also install eslint-plugin-checkbugs globally.

Usage

Add checkbugs to the plugins section of your .eslintrc configuration file. You can omit the eslint-plugin- prefix:

{
    "plugins": [
        "checkbugs"
    ]
}

Then you may extend from presets and/or configure the individual rules you want to use under the rules section.

{
    "extends": [
        "eslint:recommended",
        "plugin:checkbugs/recommended"
    ]
}

{
    "rules": {
        "checkbugs/rule-name": 2
    }
}

Supported Rules

| Rule Name | Added in | Recommended | | :-------- | :---------: | :---: | | no-backwards-assign-ops | 0.0.1 | Warn | | no-bad-odd-checks | 0.0.1 | Error | | no-bool-math | 0.0.1 | Error | | no-bool-num-compares | 0.0.1 | Error | | no-comma-in-indexing | 0.0.1 | Error | | no-double-comparison | 0.0.1 | Error | | no-emptyexpr-choice-loop | 0.0.1 | Error | | no-identical-bitwise-sides | 0.0.1 | Error | | no-identical-comparison-sides | 0.0.1 | Error | | no-identical-logical-sides | 0.0.1 | Error | | no-identical-math-sides | 0.0.1 | Warn | | no-invalid-sharedlogic-part | 0.0.1 | Error | | no-modulo-one | 0.0.1 | Warn | | no-modulo-then-multiply | 0.0.1 | Warn | | no-overwritten-increment | 0.0.1 | Error | | no-same-assignment | 0.0.1 | Error | | no-same-if-else-blocks | 0.0.1 | Warn | | no-same-if-elseif-condition | 0.0.1 | Error | | no-same-switchcase-blocks | 0.0.1 | Warn | | no-same-switchcase-condition | 0.0.1 | Error | | no-similar-compare-expression | 0.0.1 | Error | | no-triple-negation | 0.0.1 | Error | | no-ungrouped-bshift-add | 0.0.1 | Warn | | no-useless-zeros | 0.0.1 | Warn |

Included rules built-in to ESLint

| Rule Name | Options | Added in | | :-------- | :------ | :------: | | no-compare-neg-zero | | 0.0.1 | | no-cond-assign | | 0.0.1 | | no-constant-condition | | 0.0.1 | | no-control-regex | | 0.0.1 | | no-dup-args | | 0.0.1 | | no-dup-keys | | 0.0.1 | | no-empty | | 0.0.1 | | no-empty-character-class | | 0.0.1 | | no-ex-assign | | 0.0.1 | | no-extra-boolean-cast | | 0.0.1 | | curly | | 0.0.1 | | no-func-assign | | 0.0.1 | | no-inner-declarations | | 0.0.1 | | no-invalid-regexp | | 0.0.1 | | no-irregular-whitespace | | 0.0.1 | | no-obj-calls | | 0.0.1 | | no-regex-spaces | | 0.0.1 | | no-sparse-arrays | | 0.0.1 | | no-unexpected-multiline | | 0.0.1 | | no-unreachable | | 0.0.1 | | no-unsafe-finally | | 0.0.1 | | no-unsafe-negation | | 0.0.1 | | use-isnan | | 0.0.1 | | valid-typeof | | 0.0.1 | | array-callback-return | | 0.0.1 | | block-scoped-var | | 0.0.1 | | no-case-declarations | | 0.0.1 | | no-empty-pattern | | 0.0.1 | | no-global-assign | | 0.0.1 | | no-new-wrappers | | 0.0.1 | | no-octal | | 0.0.1 | | no-redeclare | | 0.0.1 | | no-unused-expressions | {allowShortCircuit: true} | 0.0.1 | | no-unmodified-loop-condition | | 0.0.1 | | no-unused-labels | | 0.0.1 | | no-useless-concat | | 0.0.1 | | no-useless-escape | | 0.0.1 | | no-delete-var | | 0.0.1 | | no-shadow-restricted-names | | 0.0.1 | | no-undef | | 0.0.1 | | no-unused-vars | | 0.0.1 | | no-use-before-define | {functions: false, classes: false} | 0.0.1 | | constructor-super | | 0.0.1 | | no-class-assign | | 0.0.1 | | no-confusing-arrow | | 0.0.1 | | no-const-assign | | 0.0.1 | | no-dupe-class-members | | 0.0.1 | | no-duplicate-imports | | 0.0.1 | | no-new-symbol | | 0.0.1 | | no-this-before-super | | 0.0.1 | | no-useless-computed-key | | 0.0.1 |