-> biome

CHANGELOG.md

@@ -1,5 +1,9 @@
 # 1.0.10
 
+## Change
+
+- linter from prettier+eslint to biome
+
 ## Bug-fix
 
 -   `KeySet` now rooted on `Object.create(null)` instead of `{}` so that `'constructor' in secludedProperties` is false

biome.json

@@ -0,0 +1,42 @@
+{
+	"$schema": "https://biomejs.dev/schemas/1.9.4/schema.json",
+	"files": {
+		"include": ["src/**/*.ts", "test/**/*.ts"]
+	},
+	"javascript": {
+		"formatter": {
+			"lineWidth": 100,
+			"quoteStyle": "single",
+			"semicolons": "asNeeded",
+			"trailingCommas": "es5",
+			"indentStyle": "tab"
+		}
+	},
+	"linter": {
+		"rules": {
+			"style": {
+				"noNonNullAssertion": "off",
+				"useSingleVarDeclarator": {
+					"level": "warn",
+					"fix": "safe"
+				},
+				"useTemplate": {
+					"level": "warn",
+					"fix": "safe"
+				}
+			},
+			"suspicious": {
+				"noExplicitAny": "off",
+				"noDebugger": "error",
+				"noConsole": "error"
+			},
+			"performance": {
+				"noAccumulatingSpread": "off"
+			},
+			"complexity": {},
+			"security": {},
+			"correctness": {},
+			"nursery": {}
+		}
+	}
+}