eutil

A small collection of date, string and type utilities for Node.js.

Installation

npm install eutil

Usage

const eutil = require('eutil');

API overview

Date helpers

• dateFormat(date, fmt) - Format a date. 将日期按指定格式输出
• dateGetNextDay(date, n) - Get date n days later. 获取未来 n 天的日期
• dateGetBeforeDay(date, n) - Get date n days before. 获取过去 n 天的日期
• dateAddMilliseconds(date, n) - Add milliseconds. 增加毫秒数
• dateAddSeconds(date, n) - Add seconds. 增加秒数
• dateAddMinutes(date, n) - Add minutes. 增加分钟数
• dateAddHours(date, n) - Add hours. 增加小时数
• dateAddDays(date, n) - Add days. 增加天数
• dateAddMonth(date, n) - Add months. 增加月份
• dateSubMonth(date, n) - Subtract months. 减少月份
• dateAddYears(date, n) - Add years. 增加年份
• dateDiff(start, end) - Get difference between two dates. 计算两个日期的差值
• dateGetGMT() - Current GMT time. 获取 GMT 时间

String helpers

• strSubLeft(str, len) - Substring from left. 从左侧截取指定长度
• strSubRight(str, len) - Substring from right. 从右侧截取指定长度
• strReplaceAll(str, search, replace) - Replace all matches. 全局替换文本
• strReplaceAll2(str, search, replace) - Replace all with regex support. 正则全局替换
• strPadstr(str, pad, width, right) - Pad string to width. 字符串填充
• strRemoveCharAt(str, index) - Remove char at index. 删除指定位置字符
• strVerifyPassword(str) - Validate simple password. 密码格式校验

Type checks

• isArray(value) - Check for Array. 是否为数组
• isObject(value) - Check for plain object. 是否为对象
• isString(value) - Check for string. 是否为字符串
• isNumber(value) - Check for number. 是否为数字
• isDate(value) - Check for Date. 是否为日期
• isFunction(value) - Check for function. 是否为函数
• isBoolean(value) - Check for boolean. 是否为布尔值
• isMap(value) - Check for Map. 是否为 Map
• dateFormat(date, fmt)
• dateGetNextDay(date, n)
• dateGetBeforeDay(date, n)
• dateAddMilliseconds(date, n)
• dateAddSeconds(date, n)
• dateAddMinutes(date, n)
• dateAddHours(date, n)
• dateAddDays(date, n)
• dateAddMonth(date, n)
• dateSubMonth(date, n)
• dateAddYears(date, n)
• dateDiff(start, end)
• dateGetGMT()

String helpers

• strSubLeft(str, len)
• strSubRight(str, len)
• strReplaceAll(str, search, replace)
• strReplaceAll2(str, search, replace)
• strPadstr(str, pad, width, right)
• strRemoveCharAt(str, index)
• strVerifyPassword(str)

Type checks

• isArray(value)
• isObject(value)
• isString(value)
• isNumber(value)
• isDate(value)
• isFunction(value)
• isBoolean(value)
• isMap(value)

Example

const eutil = require('eutil');

console.log(eutil.dateFormat(new Date(), 'yyyy-MM-dd hh:mm:ss'));
console.log(eutil.strReplaceAll('a-b-c', '-', '#')); 

For a full list of helpers see index.js.

License

MIT