This Simple Array Method Is Such A Nice Addition To JS

Key Takeaways

in this simple example we have an array called names with three values Kyle Sally John and all we're doing is printing out the first value and we're printing out the last value this is relatively simple code you do all the time but the code for printing out anything from the end of the array like the last value or second to last is really annoying to write because you need to get the length of the array and you need to subtract one it's a little bit of a pain to write which is why javascript's created an App method that allows you to do the exact same thing you can do with brackets so I could say dot at and I could pass in for example zero and that's going to give me the very first element or one is going to give me the second element but I can also pass in negative numbers so I could pass a negative one and that's going to give me the last value or negative 2 is going to give me the second to last value now this is really useful since it saves you from having to write a lot of that boilerplate annoying code for getting things from the end of the array and I just like the syntax a lot