增加debounce

packages/core/src/debounce/index.ts

@@ -0,0 +1,12 @@
+export function debounce<T extends any[], R = void>(fn: (...argu: T) => R, duration: number = 1500) {
+    let timer: ReturnType<typeof setTimeout> | void;
+    return function f(this: void, ...argu: T) {
+        if (timer) {
+            clearTimeout(timer);
+        }
+        timer = setTimeout(() => {
+            timer = undefined;
+            fn.apply(this, argu);
+        }, duration);
+    };
+}

packages/core/src/index.ts

@@ -1 +1,2 @@
 export * from "./date";
+export * from "./debounce";