Fix a type comment, make things use a shared noop where helpful

src/core.js

@@ -1,5 +1,5 @@
 /* eslint-disable no-bitwise */
-import {checkCallback, hasOwn, invokeRedrawable} from "./util.js"
+import {checkCallback, hasOwn, invokeRedrawable, noop} from "./util.js"
 
 export {m as default}
 
@@ -773,7 +773,7 @@ var removeNodeDispatch = [
 	removeNode,
 	removeElement,
 	removeInstance,
-	() => {},
+	noop,
 	(old) => currentHooks.push(old),
 	removeFragment,
 	removeFragment,

src/std/lazy.js

@@ -1,6 +1,6 @@
 import m from "../core.js"
 
-import {checkCallback} from "../util.js"
+import {checkCallback, noop} from "../util.js"
 
 var lazy = (opts) => {
 	checkCallback(opts.fetch, false, "opts.fetch")
@@ -15,6 +15,7 @@ var lazy = (opts) => {
 		return opts.pending && opts.pending()
 	}
 	var init = async () => {
+		init = noop
 		try {
 			Comp = await opts.fetch()
 			if (typeof Comp !== "function") {
@@ -31,9 +32,7 @@ var lazy = (opts) => {
 	}
 
 	return (attrs) => {
-		var f = init
-		init = null
-		if (typeof f === "function") f()
+		init()
 		return m(Comp, attrs)
 	}
 }

src/std/rate-limit.js

@@ -1,5 +1,7 @@
 /* global performance, setTimeout, clearTimeout */
 
+import {noop} from "../util.js"
+
 var validateDelay = (delay) => {
 	if (!Number.isFinite(delay) || delay <= 0) {
 		throw new RangeError("Timer delay must be finite and positive")
@@ -12,25 +14,21 @@ var rateLimiterImpl = (delay = 500, isThrottler) => {
 	var closed = false
 	var start = 0
 	var timer = 0
-	var resolveNext
+	var resolveNext = noop
 
 	var callback = () => {
 		timer = undefined
-		if (typeof resolveNext === "function") {
-			resolveNext(false)
-			resolveNext = undefined
-		}
+		resolveNext(false)
+		resolveNext = noop
 	}
 
 	var rateLimiter = async (ignoreLeading) => {
 		if (closed) {
 			return true
 		}
 
-		if (typeof resolveNext === "function") {
-			resolveNext(true)
-			resolveNext = null
-		}
+		resolveNext(true)
+		resolveNext = noop
 
 		if (timer) {
 			if (isThrottler) {
@@ -66,10 +64,8 @@ var rateLimiterImpl = (delay = 500, isThrottler) => {
 		if (closed) return
 		closed = true
 		clearTimeout(timer)
-		if (typeof resolveNext === "function") {
-			resolveNext(true)
-			resolveNext = null
-		}
+		resolveNext(true)
+		resolveNext = noop
 	}
 
 	return rateLimiter

src/std/tracked.js

@@ -65,7 +65,7 @@ import {checkCallback} from "../util.js"
  * @property {() => Array<[K, V]>} list
  * @property {(key: K) => boolean} has
  * @property {(key: K) => undefined | V} get
- * @property {(key: K, value: V) => void} track
+ * @property {(key: K, value: V) => void} set
  * @property {(key: K, value: V) => void} replace
  * @property {(key: K) => boolean} delete
  */

src/util.js

@@ -16,3 +16,5 @@ export var checkCallback = (callback, allowNull, label = "callback") => {
 
 	throw new TypeError(`\`${label}\` must be a function${allowNull ? " if provided." : "."}`)
 }
+
+export var noop = () => {}