add plugins extend

src/plugins/index.js

@@ -0,0 +1,5 @@
+import methodsExtend from './methodsExtend'
+
+export default function (Vue) {
+  methodsExtend(Vue)
+}

src/plugins/methodsExtend.js

@@ -0,0 +1,33 @@
+const { parse, stringify } = JSON
+
+/**
+ * @description          deep clone obecjt
+ * @return     {object}  clone
+ */
+export function deepClone (object) {
+  return parse(stringify(object))
+}
+
+export function deleteArrayAllItems (arrays) {
+  arrays.forEach(element => element.splice(0, element.length))
+}
+
+export function debounce (delay, callback) {
+  let lastTime
+
+  return function () {
+    clearTimeout(lastTime)
+
+    const [that, args] = [this, arguments]
+
+    lastTime = setTimeout(() => {
+      callback.apply(that, args)
+    }, delay)
+  }
+}
+
+export default function (Vue) {
+  Vue.prototype.deepClone = deepClone
+  Vue.prototype.deleteArrayAllItems = deleteArrayAllItems
+  Vue.prototype.debounce = debounce
+}