Syntax

Let’s talk about trailing commas (aka: “final commas”, “dangling commas”). Trailing commas refers to a comma at the end of a series of values in an array or array like object, leaving an essentially empty slot. e.g., [1, 2, 3, ] I kind of like them when I work on Ruby and Python projects. A number of advantages of trailing commas have been pointed out, the most common of which is diffs: ...