Web-Graphics.com
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Web-Graphics
Description
iterators, and can and will break other people’s code. So, don’t even think of doing it. It’s absolutely forbidden, understand?
The reason: Even though Array objects only have special behavior on positive integer indices, they have one distinct property* that arrays in other languages with more static typing don’t have: JavaScript arrays are sparse. What does that mean? Well, it means that in JavaScript, an array of length
, with the rest undefined. In fact, it doesn’t even have to have a single property defined, if somebody has set it’s length property to
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