feat: add get

src/get.ts

@@ -1,11 +1,25 @@
-import forOwn from './forOwn'
+import has from './has'
 import toPath from './toPath'
 
-export default function get(value: object, path: string | string[], defaultValue?: any): any {
+/**
+ * 根据 obj 对象的路径 path 获取值。
+ *
+ * @param obj 要检索的对象
+ * @param path 属性路径
+ * @param [defaultValue] 默认值
+ * @returns 检索结果
+ */
+export default function get(obj: object, path: string | string[], defaultValue?: any): any {
   path = Array.isArray(path) ? path : toPath(path)
-  const result: any = defaultValue
-  const last: any = value
+  let last: any = obj
   for (let i = 0, len = path.length; i < len; i++) {
-
+    if (has(last, path[i])) {
+      last = last[path[i]]
+      if (i === len - 1) {
+        return last
+      }
+    } else {
+      return defaultValue
+    }
   }
 }

src/index.ts

@@ -1,5 +1,3 @@
-export { default as Disposer } from './Disposer'
-export { default as Validator } from './Validator'
 export { default as base64Decode } from './base64Decode'
 export { default as base64Encode } from './base64Encode'
 export { default as base64UrlDecode } from './base64UrlDecode'
@@ -8,11 +6,13 @@ export { default as bindEvent } from './bindEvent'
 export { default as castArray } from './castArray'
 export { default as clamp } from './clamp'
 export { default as cssTransform } from './cssTransform'
+export { default as Disposer } from './Disposer'
 export { default as endsWith } from './endsWith'
 export { default as fill } from './fill'
-export { default as forOwn } from './forOwn'
 export { default as formatCurrency } from './formatCurrency'
 export { default as formatDate } from './formatDate'
+export { default as forOwn } from './forOwn'
+export { default as get } from './get'
 export { default as getType } from './getType'
 export { default as has } from './has'
 export { default as inBrowser } from './inBrowser'
@@ -61,4 +61,5 @@ export { default as supportPassiveEventListener } from './supportPassiveEventLis
 export { default as toDate } from './toDate'
 export { default as toPath } from './toPath'
 export { default as upperCaseFirst } from './upperCaseFirst'
+export { default as Validator } from './Validator'
 export { default as values } from './values'

test/index.test.ts

@@ -1207,12 +1207,33 @@ describe('isEmpty', () => {
   })
 })
 
-describe('request', () => {
-  test('ok', async () => {
-    const data: any = await vtils.request({
-      url: 'https://jsonplaceholder.typicode.com/todos/1'
-    })
-    expect(data.status).toBe(200)
-    expect(data.data.id).toBe(1)
+// describe('request', () => {
+//   test('ok', async () => {
+//     const data: any = await vtils.request({
+//       url: 'https://jsonplaceholder.typicode.com/todos/1'
+//     })
+//     expect(data.status).toBe(200)
+//     expect(data.data.id).toBe(1)
+//   })
+// })
+
+describe('get', () => {
+  test('ok', () => {
+    const obj: any = {
+      x: 1,
+      y: [1, 2, { z: null }],
+      z: { we: 'hello' },
+      '1.2': 1.2
+    }
+    expect(vtils.get(obj, 'x')).toBe(1)
+    expect(vtils.get(obj, 'y[1]')).toBe(2)
+    expect(vtils.get(obj, 'y[2].z')).toBe(null)
+    expect(vtils.get(obj, 'z.we')).toBe('hello')
+    expect(vtils.get(obj, 'z.we[1]')).toBe('e')
+    expect(vtils.get(obj, 'z.we[1].xxx')).toBe(undefined)
+    expect(vtils.get(obj, 'yyy')).toBe(undefined)
+    expect(vtils.get(obj, 'yyy', 2013)).toBe(2013)
+    expect(vtils.get(obj, '[1.2]')).toBe(1.2)
+    expect(vtils.get(obj, '1.2')).toBe(undefined)
   })
 })