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https://www.w3schools.com/jsref/jsref_obj_array.asp
The some() method checks if any of the elements in an array pass a test (provided as a function). The difference between this
and something like .map() or find() is that some() returns a Boolean. True if any of the elements in the array pass the test,
otherwise it returns false. Think of it as a "contains" function.
The some() method executes the function once for each element present in the array.
some() does not execute the function for empty arrays.
some() does not change the original array.
$(function ()
{
let hasClarke = authors.some((author) => { return author.name.toLowerCase() === "arthur c clarke" });
$("#demo1").html("Did we find Arthur C Clarke? " + hasClarke);
});