JavaScript join method: How to merge arrays into one value

In this tutorial we’ll look at the JavaScript join method and see how it can be used to merge an array in to one single value.

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The JavaScript join method is a pretty simple function that can be called on any array in JavaScript.

The problem it solves is to join the values of an array and return a string. So this can be JavaScript join two arrays or JavaScript join array of strings the end result is always the same - a string is returned.

In the tutorial you’ll learn how to call the JavaScript join method and how it can be used with or without a separator to make an entirely new string. You’ll also see what happens when you call the function on an array of numbers and also when you use the function: JavaScript join array of objects.

Finally, we’ll take a look at how to JavaScript join without commas an array of strings or values and see how this differs with the other techniques we’ve seen already.

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