This table shows the weaknesses and high level categories that are related to this weakness. Variant level weaknesses typically describe issues in terms of 3 to 5 of the following dimensions: behavior, property, technology, language, and resource.Ĭomparison of Object References Instead of Object Contents That is linked to a certain type of product, typically involving a specific language or technology. Base level weaknesses typically describe issues in terms of 2 or 3 of the following dimensions: behavior, property, technology, language, and resource. This means we can check for the complement of our found index and convert it to a Boolean.That is still mostly independent of a resource or technology, but with sufficient details to provide specific methods for detection and prevention. Remember that the complement of -1 is 0 (zero), and in JavaScript, a zero-value when made Boolean is false. But it is easier to confirm if this item is missing or exists using a Boolean true or false and this is where the bitwise NOT operator helps. In the snippet above, we see that when an item is not found, we get -1 in return. These methods all return the zero-based index of the item or substring, if it is found. Most built-in objects in JavaScript, such as arrays and strings, have some useful methods that can be used to check for the presence of an item in the array or a substring within the string. One of the most common use cases for the bitwise NOT operator is in combination with the found index. When would you use the bitwise NOT operator?
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