merge-imports

Merge consecutive import declarations that import from the same module.

Merges consecutive import declarations that import from the same module. Default imports and named imports can be combined into a single declaration.

Configuration

Add the rule to lint.rules in vite.config.ts to enable it.

"tai-kun/merge-imports": "error",

import value from "module";
import { a } from "module";
import { b } from "module";

import value, { a, b } from "module";

Type-only imports can be merged with value imports as well.

import type { A } from "module";
import { b } from "module";

import { type A, b } from "module";

Only consecutive import declarations are merged. When another import or statement is in between, they are left alone so that module evaluation order does not change.
Side-effect-only imports (import "module";), namespace imports (import * as namespace from "module";), and multiple default imports with different local names are excluded.
Declarations with different import attributes (with { ... }) are not merged.
Declarations with comments outside their specifiers are skipped so that comments are not lost.
When a type-only declaration is merged with a value declaration, type is added to each specifier. Merging import type Foo from "module"; with named imports produces import { type default as Foo, ... }.
Multiline imports stay multiline, and the presence of a trailing comma is preserved.