Easy Format

简易常见的格式化小工具

安装

 npm i -S easy-fmt
 or
 yarn add easy-fmt

使用

import fmt from "easy-fmt";

let io = fmt.IntersectionObserver(document.getElementById("box", true));

io.then((entries, observe) => {
  if (entries[0].intersectionRatio <= 0) return;
  // 元素在可视区的处理逻辑
  observe.disconnect();
});

fmt.currency(12000); // 12,000.00

fmt.time(new Date(2020, 10, 22, 10, 15, 2), "YYYY-MM-DD hh:mm:ss"); // 2020-11-22 10:15:02

fmt.param({
  orderId: 15,
  orderNo: "Order20201022",
}); // ?orderId=15&orderNo=Order20201022

fmt.prefixZero(12, 5); // 00012
fmt.prefixZero(12, 1); // 12
fmt.prefixZero(-12, 3); // -012

fmt.round(12.456, 2); // 12.46

fmt.mask("15211112222", 12, 4); // 15211112222
fmt.mask("15211112222", 3, 4); // 152****2222

fmt.trim(" 152  111 222 ", "all"); // 152111222

fmt.phone("15211112222"); // 152-1111-2222
fmt.phone("15211112222", "/"); // 152/1111/2222
fmt.phone("15211112222", "-", "1/1/1"); // 1-5-2-11112222

API

| 方法 | 实例 | 备注 | | ---------------------- | ----------------------------------------------------------------------------- | -------------------------- | | IntersectionObserver | fmt.IntersectionObserver(el:Element, showOnce: Boolean) | 监听指定元素是否在可视区域 | | currency | fmt.currency(num: Number,placeholder: Boolean) | 格式化货币 | | time | fmt.time(value: Number | Date | String, format: String) | 格式化时间 | | param | fmt.param(obj: Object) | 将对象转换成 query | | unparam | fmt.unparam(val: String) | 将 query 转换成对象 | | prefixZero | fmt.prefixZero(num: Number, length: Number) | 补零 | | round | fmt.round(num: Number, decimals: Number) | 四舍五入 | | randomNum | fmt.randomNum(min: Number, max?: Number) | 指定范围内的随机数 | | mask | fmt.mask(str: String, start: Number, maskLen: Number, _placeholder: String) | 字符串遮挡 | | maskLeft | fmt.maskLeft(str: String, maskLen: Number, _placeholder: String) | 从左侧开始遮挡 | | maskRight | fmt.maskRight(str: String, maskLen: Number, _placeholder: String) | 从右侧开始遮挡 | | trim | fmt.trim(str: String, type: String['all', 'lr', 'left', 'right']) | 清空字符串空格 | | guid | fmt.guid() | 生成随机码 | | phone | fmt.phone(PhoneNumber: String, split: String, distribute: String) | 格式化手机号码 |