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Be warned that this is not a real array and it has real pitfalls if you try to use it. The 'person' element in the example becomes part of the Array object's properties and methods, just like. The loop in the above example will also pick up any methods, properties, and prototypes which have been added to the array and not just your data.
A lot of problems people have with the Prototype framework is that their associative arrays break because Prototype adds a few useful functions to the global object and for i in x loops pick up those additional methods. The bottom line is -- don't try to use associative arrays. Code for what they are -- object properties, not Arrays.
Every value of the array is passed to that function until the function returns false. If no elements return false then every will return true, if an element returned false then every will return false.
It's a convenient way to test an Array and see if every element is a number for instance. This method will pass the current value, the current index, and a pointer to the array to your function -- myfunction curValue, curIndex, curArray.
The 'person' element in the example becomes part of the Array object's properties and methods, just like. Write and Publish on Leanpub Authors, publishers and universities use Leanpub to publish amazing in-progress and completed books and courses, just like this one.
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