no-wrap-func

Disallows unnecessary parentheses around function expressions.

Although it’s possible to wrap functions in parentheses, this can be confusing when the code also contains immediately-invoked function expressions (IIFEs) since parentheses are often used to make this distinction. For example:

var foo = (function() {
    // IIFE
}());

var bar = (function() {
    // not an IIFE
});
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Rule Details

This rule will raise a warning when it encounters a function expression wrapped in parentheses with no following invoking parentheses.

Example of incorrect code for this rule:

var a = (function() {/*...*/});
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Examples of correct code for this rule:

var a = function() {/*...*/};

(function() {/*...*/})();
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Version

This rule was introduced in ESLint v0.0.9 and removed in v1.0.0-rc-1.