feat: add inWechatMiniProgram

src/inWechatMiniProgram.ts

@@ -0,0 +1,23 @@
+import inBrowser from './inBrowser'
+import isFunction from './isFunction'
+
+declare const wx: any
+
+let isInWechatMiniProgram: boolean | undefined
+
+/**
+ * 检查是否在微信小程序环境中。
+ *
+ * @param [callback] 在微信小程序环境中执行的回调
+ * @returns 是（true）或否（false）
+ */
+export default function inWechatMiniProgram(callback?: () => void): boolean {
+  if (isInWechatMiniProgram === undefined) {
+    isInWechatMiniProgram = !inBrowser() && typeof wx === 'object' && isFunction(wx.getSystemInfo)
+  }
+  /* istanbul ignore if */
+  if (isInWechatMiniProgram && isFunction(callback)) {
+    callback()
+  }
+  return isInWechatMiniProgram
+}

src/index.ts

@@ -12,6 +12,7 @@ export { default as forOwn } from './forOwn'
 export { default as getType } from './getType'
 export { default as has } from './has'
 export { default as inBrowser } from './inBrowser'
+export { default as inWechatMiniProgram } from './inWechatMiniProgram'
 export { default as isArray } from './isArray'
 export { default as isBoolean } from './isBoolean'
 export { default as isDate } from './isDate'

test/index.test.ts

@@ -677,3 +677,12 @@ describe('mapValues', () => {
     })
   })
 })
+
+describe('inWechatMiniProgram', () => {
+  test('inWechatMiniProgram', () => {
+    const callback = sinon.fake()
+    expect(vtils.inWechatMiniProgram()).toBeFalsy()
+    expect(vtils.inWechatMiniProgram(callback)).toBeFalsy()
+    expect(callback.notCalled).toBeTruthy()
+  })
+})