How to Create a Comma-Separated List from a JavaScript Array?

Creating Comma-Separated Lists from JavaScript Arrays

Converting a JavaScript array of strings into a comma-separated list is a common operation. Here's how you can achieve this with ease:

Using Array.prototype.join()

The Array.prototype.join() method is the most straightforward way to create a comma-separated list. It takes a separator as its argument, which by default is a comma and space.

<code class="js">var arr = ["Zero", "One", "Two"];

document.write(arr.join(", "));</code>

Result: "Zero, One, Two"

You can specify a different separator if needed, for example:

<code class="js">document.write(arr.join("; "));</code>

Result: "Zero; One; Two"

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