javascript – Get the last item in an array

javascript – Get the last item in an array

Update 13 July 2021

The new at() method allows you to use negative indices to mean from the end.

You can access the last item of locArray like this:

if (locArray.at(-1) === index.html) {
   // do something
} else {
   // something else
}

At time of update, the at() method is supported in Chrome 92+, FireFox 90+, Node 16 and Deno 1.12+

Older answer

if (loc_array[loc_array.length - 1] === index.html) {
   // do something
} else {
   // something else
}

In the event that your server serves the same file for index.html and inDEX.htML you can also use: .toLowerCase().

Though, you might want to consider doing this server-side if possible: it will be cleaner and work for people without JS.

Not sure if theres a drawback, but this seems quite concise:

arr.slice(-1)[0] 

or

arr.slice(-1).pop()

Both will return undefined if the array is empty.

javascript – Get the last item in an array

Use Array.pop:

var lastItem = anArray.pop();

Important : This returns the last element and removes it from the array

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