JSONPath referencing a JSON array

I have the following JSON object.

[{"ID":"123"}]

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As you can see, its encased in brackets, and therefore an array.

If there were no brackets I could easily get the 123 value with the following command

$.1

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However, I do not seem to be able to get the value of the from JSONPath with the enclosed brackets included in the JSON object.

I checked on a validator and the JSON object is valid.  I looked up several JSONPath sites, but I could not find out how to dereference this strange array

How do I format a JSONPath statement that will return 123 from the JSON object of

[{"ID":"123"}]

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Anthony LuciaAsked:
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Liam MartensCommented:
In plain Javascript you could do the following:
var foo = [{"ID":"123"}];
var ID = foo[0].ID;

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foo[0] will reference to the JSON object in the array object, being the first element (index 0), then inside the JSON Object you can use the key of the key value pairs to return it's value.
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Anthony LuciaAuthor Commented:
Thanks to your help I was able to get this in pure JSONPath with the following:

$.[0].ID
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