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The syntax of this method is quite simple. By definition, the pop method removes the last element from an array, then returns:
If you were to type this code into the web browser console (* see side note below if you don’t know how to do it) and
console .log (frozen) and
console.log (checked), what would happen?
Frozen would return as an array with one minus element and checked would be the element that was removed from the array:
Chrome / Firefox: In Chrome, right click on this page, select ’Check’. You will see that the Google Chrome Developer Tools opens. At the top there should be a series of navigable tabs. Firefox is similar, but you select "Inspect Point". Click on Console and your workspace will be there.