Small fixes to core

Author: elliotwaite

.changeset/mighty-pianos-end.md

@@ -0,0 +1,5 @@
+---
+"@preact/signals-core": patch
+---
+
+Fix incorrectly named variables and address typos in code comments.

packages/core/src/index.ts

@@ -111,10 +111,10 @@ export class Signal<T = any> {
 			// Any leftover dependencies here are not needed anymore
 			if (shouldCleanup) {
 				// Unsubscribe from dependencies that were not accessed:
-				oldDeps.forEach(sub => unsubscribe(this, sub));
+				oldDeps.forEach(dep => unsubscribe(this, dep));
 			} else {
-				// Re-subscribe to dependencies that not accessed:
-				oldDeps.forEach(sub => subscribe(this, sub));
+				// Re-subscribe to dependencies that were not accessed:
+				oldDeps.forEach(dep => subscribe(this, dep));
 			}
 
 			oldDeps.clear();
@@ -198,7 +198,7 @@ const tmpPending: Signal[] = [];
  * Refresh _just_ this signal and its dependencies recursively.
  * All other signals will be left untouched and added to the
  * global queue to flush later. Since we're traversing "upwards",
- * we don't have to car about topological sorting.
+ * we don't have to care about topological sorting.
  */
 function refreshStale(signal: Signal) {
 	pending.delete(signal);

packages/core/test/signal.test.tsx

@@ -361,7 +361,7 @@ describe("computed()", () => {
 
 			// top to bottom
 			expect(eSpy).to.have.been.calledBefore(fSpy);
-			// right to left
+			// left to right
 			expect(fSpy).to.have.been.calledBefore(gSpy);
 		});
 
@@ -650,7 +650,7 @@ describe("batch/transaction", () => {
 		const spyD = sinon.spy(() => c.value);
 		const d = computed(spyD);
 
-		const spyE = sinon.spy(() => b.value);
+		const spyE = sinon.spy(() => d.value);
 		const e = computed(spyE);
 
 		spyC.resetHistory();