feat: add formatDateDiff (需优化)

package.json

@@ -75,6 +75,7 @@
     "sinon": "^6.3.5",
     "standard-version": "^4.4.0",
     "ts-jest": "^23.10.4",
+    "ts-node": "^8.0.2",
     "typed-we-app": "^1.7.0-update.6",
     "typescript": "^3.1.6"
   },

src/formatDateDiff.ts

@@ -0,0 +1,93 @@
+import { FormatDateValue } from './formatDate'
+import toDate from './toDate'
+
+const MINUTE = 60
+const HOUR = MINUTE * 60
+const DAY = HOUR * 24
+const MONTH = DAY * 30
+const YEAR = DAY * 365
+
+// function getDaysOfYear(year: number): number {
+//   return Math.floor((new Date(year, 11, 31).getTime() - new Date(year, 0, 0).getTime()) / (1000 * 60 * 60 * 24))
+// }
+
+/**
+ * 格式化日期间距。
+ *
+ * @param startDate 开始日期
+ * @param endDate 结束日期
+ * @param template 格式化模板
+ * @returns 格式化后的字符串
+ */
+export default function formatDateDiff(
+  startDate: FormatDateValue,
+  endDate: FormatDateValue,
+  template: string
+): string {
+  template = `|${template}|`
+  const startTime = toDate(startDate).getTime()
+  const endTime = toDate(endDate).getTime()
+  const diffTime = endTime - startTime
+  const diffSeconds = Math.round(Math.abs(diffTime / 1000))
+  const years = Math.floor(diffSeconds / YEAR)
+  let months = Math.floor((diffSeconds - years * YEAR) / MONTH)
+  let days = Math.floor((diffSeconds - years * YEAR - months * MONTH) / DAY)
+  let hours = Math.floor((diffSeconds - years * YEAR - months * MONTH - days * DAY) / HOUR)
+  let minutes = Math.floor((diffSeconds - years * YEAR - months * MONTH - days * DAY - hours * HOUR) / MINUTE)
+  let seconds = diffSeconds - years * YEAR - months * MONTH - days * DAY - hours * HOUR - minutes * MINUTE
+  if (template.indexOf('y') >= 0) {
+    if (years > 0) {
+      template = template.replace('y', String(years))
+    } else {
+      template = template.replace(/\|[^|]*?y[^|]*?(?=\|)/, '')
+    }
+  } else {
+    months += years * 12
+  }
+  if (template.indexOf('m') >= 0) {
+    if (months > 0) {
+      template = template.replace('m', String(months))
+    } else {
+      template = template.replace(/\|[^|]*?m[^|]*?(?=\|)/, '')
+    }
+  } else {
+    days += months * 30
+  }
+  if (template.indexOf('d') >= 0) {
+    if (days > 0) {
+      template = template.replace('d', String(days))
+    } else {
+      template = template.replace(/\|[^|]*?d[^|]*?(?=\|)/, '')
+    }
+  } else {
+    hours += days * 24
+  }
+  if (template.indexOf('h') >= 0) {
+    if (hours > 0) {
+      template = template.replace('h', String(hours))
+    } else {
+      template = template.replace(/\|[^|]*?h[^|]*?(?=\|)/, '')
+    }
+  } else {
+    minutes += hours * 60
+  }
+  if (template.indexOf('i') >= 0) {
+    if (minutes > 0) {
+      template = template.replace('i', String(minutes))
+    } else {
+      template = template.replace(/\|[^|]*?i[^|]*?(?=\|)/, '')
+    }
+  } else {
+    seconds += minutes * 60
+  }
+  if (template.indexOf('s') >= 0) {
+    if (seconds > 0) {
+      template = template.replace('s', String(seconds))
+    } else {
+      template = template.replace(/\|[^|]*?s[^|]*?(?=\|)/, '')
+    }
+  }
+  return template.replace(/\|/g, '')
+}
+
+// console.log(formatDateDiff(new Date('2018-1-3'), new Date('2019-1-4'), 'd日'))

src/index.ts

@@ -17,6 +17,7 @@ export { default as flexible } from './flexible'
 export { default as forOwn } from './forOwn'
 export { default as formatCurrency } from './formatCurrency'
 export { default as formatDate } from './formatDate'
+export { default as formatDateDiff } from './formatDateDiff'
 export { default as get } from './get'
 export { default as getType } from './getType'
 export { default as has } from './has'

test/index.test.ts

@@ -1570,3 +1570,15 @@ describe('toUnixTimestamp', () => {
     })
   })
 })
+
+describe('formatDateDiff', () => {
+  test('ok', () => {
+    [
+      ['2019-1-3', '2019-1-4', 'y年|m月|d日|h时|i分|s秒', '1日'],
+      ['2018-1-3', '2019-1-4', 'y年|m月|d日|h时|i分|s秒', '1年1日'],
+      // ['2018-1-3', '2019-1-4', 'd日', '366日'],
+    ].map(([startDate, endDate, template, result]) => {
+      expect(vtils.formatDateDiff(startDate, endDate, template)).toBe(result)
+    })
+  })
+})

tsconfig.json

@@ -3,7 +3,7 @@
     "strict": true,
     "strictNullChecks": false,
     "target": "es5",
-    "module": "ESNext",
+    "module": "esnext",
     "moduleResolution": "node",
     "declaration": true,
     "removeComments": false,