feat: 🎸 初始化项目

src/components/Scrollbar/util.ts

@@ -0,0 +1,49 @@
+import type { BarMap } from './types'
+export const BAR_MAP: BarMap = {
+  vertical: {
+    offset: 'offsetHeight',
+    scroll: 'scrollTop',
+    scrollSize: 'scrollHeight',
+    size: 'height',
+    key: 'vertical',
+    axis: 'Y',
+    client: 'clientY',
+    direction: 'top'
+  },
+  horizontal: {
+    offset: 'offsetWidth',
+    scroll: 'scrollLeft',
+    scrollSize: 'scrollWidth',
+    size: 'width',
+    key: 'horizontal',
+    axis: 'X',
+    client: 'clientX',
+    direction: 'left'
+  }
+}
+
+export function renderThumbStyle({ move, size, bar }: any) {
+  const style = {} as any
+  const translate = `translate${bar.axis}(${move}%)`
+
+  style[bar.size] = size
+  style.transform = translate
+  style.msTransform = translate
+  style.webkitTransform = translate
+
+  return style
+}
+
+function extend<T, K>(to: T, _from: K): T & K {
+  return Object.assign(to, _from)
+}
+
+export function toObject<T>(arr: Array<T>): Record<string, T> {
+  const res = {}
+  for (let i = 0; i < arr.length; i++) {
+    if (arr[i]) {
+      extend(res, arr[i])
+    }
+  }
+  return res
+}