🎨 Stylistic: this is a stylistic rule used by the formatting feature.

Enforce spacing around commas in entity selectors. No matter what the settings are, spaces after trailing commas are always removed.

• (object) Root.
  • before: (number) the number of spaces before the comma.
  • after: (number) the number of spaces after the comma.

{
    "selectorCommaSpacing": { "before": 0, "after": 1 }
}

kill @e[type=!minecraft:player, tag=foo]

kill @e[type=!minecraft:player,tag=foo]
kill @e[type=!minecraft:player ,tag=foo]
kill @e[type=!minecraft:player , tag=foo]

{
    "selectorCommaSpacing": { "before": 0, "after": 0 }
}

kill @e[type=!minecraft:player,tag=foo]

kill @e[type=!minecraft:player, tag=foo]
kill @e[type=!minecraft:player ,tag=foo]
kill @e[type=!minecraft:player , tag=foo]

This rule was introduced in DHP 2.0.0.