ng-cw-v12
Version:
Angular UI Component Library
88 lines • 11.5 kB
JavaScript
import { Injectable } from '@angular/core';
import * as i0 from "@angular/core";
export class LocalService {
constructor() {
}
/**
* 精确乘法
* @param value1 第一个乘数
* @param value2 第二个乘数
* @returns 两数之积
*/
mathMultiply(value1, value2) {
// 将浮点数转换为字符串
let aStr = value1.toString();
let bStr = value2.toString();
// 找到小数点后的位置
let aDecimals = (aStr.split('.')[1] || '').length;
let bDecimals = (bStr.split('.')[1] || '').length;
// 将浮点数转换为整数
let aInt = parseInt(aStr.replace('.', ''));
let bInt = parseInt(bStr.replace('.', ''));
// 进行整数乘法
let resultInt = aInt * bInt;
// 计算最终的小数位数
let totalDecimals = aDecimals + bDecimals;
// 将结果转换回浮点数
return resultInt / Math.pow(10, totalDecimals);
}
/**
* 保留指定小数位数的百分比
* @param num 需要处理的数值
* @param len 要保留的小数位数
* @returns 处理后的百分比值，保留指定小数位数
*/
retainPercentDecimal(num, len) {
const n = Math.pow(10, len + 2);
return this.mathMultiply(Math.round(num * n) / n, 100);
}
// ---------------------日期类---------------------
/**
* 格式化时间
* @param type 格式化类型yyyy-MM-dd HH:mm:ss，注意MM为月份、mm为分钟
* @param time 可选。默认当前时间
* @returns yyyy-MM-dd HH:mm:ss
*/
formatDate(type, time) {
if (!time) {
time = new Date();
}
else {
time = new Date(time);
}
if (!type) {
return '';
}
const year = time.getFullYear();
const month = (time.getMonth() + 1).toString().padStart(2, '0');
const date = (time.getDate()).toString().padStart(2, '0');
const hours = (time.getHours()).toString().padStart(2, '0');
const minute = (time.getMinutes()).toString().padStart(2, '0');
const second = (time.getSeconds()).toString().padStart(2, '0');
return type.replace('yyyy', year).replace('MM', month).replace('dd', date).replace('HH', hours).replace('mm', minute).replace('ss', second);
}
/**
* 获取两日期间的所有日期
* @param startDate 开始日期
* @param endDate 结束日期
* @returns 日期数组
*/
getRangeDate(startDate, endDate) {
let datesArray = [];
let currentDate = new Date(startDate);
while (currentDate <= endDate) {
datesArray.push(new Date(currentDate));
currentDate.setDate(currentDate.getDate() + 1);
}
return datesArray;
}
}
LocalService.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "12.1.5", ngImport: i0, type: LocalService, deps: [], target: i0.ɵɵFactoryTarget.Injectable });
LocalService.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "12.1.5", ngImport: i0, type: LocalService, providedIn: 'root' });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "12.1.5", ngImport: i0, type: LocalService, decorators: [{
type: Injectable,
args: [{
providedIn: 'root'
}]
}], ctorParameters: function () { return []; } });
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