refactor: circular deps part 14

packages/core/utils/shared.ts

@@ -0,0 +1,40 @@
+// Note: these could be removed in the future - used internally largely with GC handling right now
+/**
+ * Creates a debounced function that delays invoking the provided function until after a specified delay
+ * @param fn The function to debounce
+ * @param delay The number of milliseconds to delay
+ * @param param2 Options for the debounce behavior
+ * @returns A new debounced function
+ */
+export function debounce(fn: any, delay = 300, { leading }: { leading?: boolean } = {}) {
+	let timer: NodeJS.Timeout;
+	return (...args: Array<any>) => {
+		if (timer === undefined && leading) {
+			fn.apply(this, args);
+		}
+		clearTimeout(timer);
+		timer = setTimeout(() => {
+			fn.apply(this, args);
+			timer = undefined;
+		}, delay);
+	};
+}
+
+/**
+ * Creates a throttled function that only invokes the provided function at most once per specified delay
+ * @param fn The function to throttle
+ * @param delay The number of milliseconds to delay
+ * @returns A new throttled function
+ */
+export function throttle(fn: Function, delay = 300) {
+	let waiting = false;
+	return function (...args) {
+		if (!waiting) {
+			fn.apply(this, args);
+			waiting = true;
+			setTimeout(function () {
+				waiting = false;
+			}, delay);
+		}
+	};
+}