98 lines
2.7 KiB
JavaScript
98 lines
2.7 KiB
JavaScript
/**
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* @description 计算工具类
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*/
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export function renderTime(date) {
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const dateee = new Date(date).toJSON()
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return new Date(+new Date(dateee) + 8 * 3600 * 1000)
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.toISOString()
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.replace(/T/g, ' ')
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.replace(/\.[\d]{3}Z/, '')
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}
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export function sub(arg1, arg2, num) {
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//num为保留位数,不传时不四舍五入
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arg1 = Number(arg1)
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arg2 = Number(arg2)
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var r1 = 0,
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r2 = 0,
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m
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try {
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r1 = arg1.toString().split('.')[1].length
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} catch (e) {}
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try {
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r2 = arg2.toString().split('.')[1].length
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} catch (e) {}
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m = Math.pow(10, Math.max(r1, r2))
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if (num || num === 0) {
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return ((arg1 * m - arg2 * m) / m).toFixed(num) //注意：fixed四舍五入大于5会进1 5并不会进1
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}
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return (arg1 * m - arg2 * m) / m
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}
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export function add(arg1, arg2, num) {
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//num为保留位数,不传时不四舍五入
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arg1 = Number(arg1)
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arg2 = Number(arg2)
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var r1 = 0,
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r2 = 0,
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m
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try {
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r1 = arg1.toString().split('.')[1].length
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} catch (e) {}
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try {
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r2 = arg2.toString().split('.')[1].length
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} catch (e) {}
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m = Math.pow(10, Math.max(r1, r2))
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if (num || num === 0) {
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return ((arg1 * m + arg2 * m) / m).toFixed(num) //注意：fixed四舍五入大于5会进1 5并不会进1
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}
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return (arg1 * m + arg2 * m) / m
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}
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export function mul(arg1, arg2, num) {
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//num为保留位数,不传时不四舍五入
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var m = 0,
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s1 = arg1.toString(),
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s2 = arg2.toString() //获取两个相乘数据的小数点后面的数据的长度，即获取小数的位数，因为最终相乘计算的结果：结果小数的位数=第一个数的小数位数+第二个数的小数位数
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try {
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m += s1.split('.')[1].length
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} catch (e) {}
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try {
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m += s2.split('.')[1].length
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} catch (e) {} //将两个小数去掉小数点，强制转换整个值（即进行数值放开小数点位数的倍数），然后进行相乘的操作，相乘的结果除去10的m次方
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if (num || num === 0) {
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return (
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(Number(s1.replace('.', '')) * Number(s2.replace('.', ''))) /
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Math.pow(10, m)
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).toFixed(num) //注意：fixed四舍五入大于5会进1 5并不会进1
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}
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return (
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(Number(s1.replace('.', '')) * Number(s2.replace('.', ''))) /
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Math.pow(10, m)
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)
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}
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export function accDiv(arg1, arg2, num) {
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//num为保留位数,不传时不四舍五入
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var t1 = 0,
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t2 = 0,
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r1,
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r2
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if (arg2 == 0) {
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return Number(arg2).toFixed(num)
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}
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try {
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t1 = arg1.toString().split('.')[1].length
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} catch (e) {}
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try {
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t2 = arg2.toString().split('.')[1].length
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} catch (e) {}
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r1 = Number(arg1.toString().replace('.', ''))
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r2 = Number(arg2.toString().replace('.', ''))
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if (num || num === 0) {
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return ((r1 / r2) * Math.pow(10, t2 - t1)).toFixed(num)
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}
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return (r1 / r2) * Math.pow(10, t2 - t1)
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}
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