feat: 新增函数

src/is/__test__/index.test.ts

@@ -1,4 +1,4 @@
-import { expect, it } from 'vitest'
+import { describe, expect, it } from 'vitest'
 import {
   isServer,
   isEdge,
@@ -20,7 +20,9 @@ import {
   isMap,
   isClient,
   isUrl,
-  isEmail
+  isEmail,
+  isImgPath,
+  isEmptyVal
 } from '../index'
 
 it('isServer', () => {
@@ -190,3 +192,35 @@ it('isEmail', () => {
   expect(isEmail('[email protected]')).toBeTruthy()
   expect(isEmail('502431556@qq')).toBeFalsy()
 })
+
+describe('isImgPath', () => {
+  it('should return true for valid image URLs', () => {
+    expect(isImgPath('http://www.baidu.com/1.png')).toBe(true)
+    expect(isImgPath('https://www.example.com/image.jpg')).toBe(true)
+    expect(
+      isImgPath(
+        'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=='
+      )
+    ).toBe(true)
+  })
+
+  it('should return false for invalid image URLs', () => {
+    expect(isImgPath('http://www.baidu.com')).toBe(false)
+    expect(isImgPath('https://www.example.com/image.txt')).toBe(false)
+    expect(isImgPath('data:text/plain;base64,SGVsbG8sIFdvcmxkIQ%3D%3D')).toBe(false)
+  })
+})
+
+describe('isEmptyVal', () => {
+  it('should return true for empty values', () => {
+    expect(isEmptyVal('')).toBe(true)
+    expect(isEmptyVal(null)).toBe(true)
+    expect(isEmptyVal(undefined)).toBe(true)
+  })
+
+  it('should return false for non-empty values', () => {
+    expect(isEmptyVal('Hello')).toBe(false)
+    expect(isEmptyVal(0)).toBe(false)
+    expect(isEmptyVal(false)).toBe(false)
+  })
+})

src/is/index.ts

@@ -397,3 +397,31 @@ export const isEmail = (val: string): boolean => {
   const reg = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(.[a-zA-Z0-9_-])+/g
   return reg.test(val)
 }
+
+/**
+ * 判断是否是合法的图片
+ * @category Is
+ * @param val 需要验证的值
+ * @example
+ * ``` typescript
+ * isImgPath('http://www.baidu.com/1.png')
+ * ```
+ */
+export const isImgPath = (val: string): boolean => {
+  return /(https?:\/\/.*\.(png|jpg|jpeg|gif|svg|webp|ico))|(data:image\/\w+;base64,[\w+/=]+)/i.test(
+    val
+  )
+}
+
+/**
+ * 判断是否是空值
+ * @category Is
+ * @param val 需要验证的值
+ * @example
+ * ``` typescript
+ * isEmptyVal('')
+ * ```
+ */
+export const isEmptyVal = (val: any): boolean => {
+  return val === '' || val === null || val === undefined
+}

src/time/__test__/index.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, it } from 'vitest'
-import { formatTime, timestamp } from '../index'
+import { formatTime, sleep, timestamp } from '../index'
 
 describe('formatTime', () => {
   it('should format time correctly', () => {
@@ -29,3 +29,13 @@ describe('timestamp', () => {
     expect(result).toBeLessThanOrEqual(after)
   })
 })
+
+describe('sleep', () => {
+  it('should pause execution for the specified time', async () => {
+    const startTime = Date.now()
+    await sleep(1000)
+    const endTime = Date.now()
+    const elapsedTime = endTime - startTime
+    expect(elapsedTime).toBeGreaterThanOrEqual(1000)
+  })
+})

src/time/index.ts

@@ -43,3 +43,13 @@ export function formatTime(time: Date | number | string | null | undefined, fmt:
  * ```
  */
 export const timestamp = () => +Date.now()
+
+/**
+ * 等待指定时间
+ * @param time 等待时间
+ * @example
+ * ``` typescript
+ * await sleep(1000)
+ * ```
+ */
+export const sleep = (time: number) => new Promise((resolve) => setTimeout(resolve, time))