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Uncaught TypeError: Cannot use 'in' operator to search for 'length' #2

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@loretoparisi
script.js:2003 Uncaught TypeError: Cannot use 'in' operator to search for 'length' 

The error seems to take place at line var length = !!obj && "length" in obj && obj.length, in

function isArrayLike( obj ) {

    // Support: real iOS 8.2 only (not reproducible in simulator)
    // `in` check used to prevent JIT error (gh-2145)
    // hasOwn isn't used here due to false negatives
    // regarding Nodelist length in IE
    var length = !!obj && "length" in obj && obj.length,
        type = jQuery.type( obj );

    if ( type === "function" || jQuery.isWindow( obj ) ) {
        return false;
    }

    return type === "array" || length === 0 ||
        typeof length === "number" && length > 0 && ( length - 1 ) in obj;
}

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