37 lines
846 B
JavaScript
37 lines
846 B
JavaScript
/**
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* 数字， 计算相关函数
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*
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* @author terrfly
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* @site https://www.jeepay.vip
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* @date 2022/11/22 10:38
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*/
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/**
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* 保留小数n位，不进行四舍五入
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* num你传递过来的数字,
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* decimal你保留的几位,默认保留小数后两位
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*/
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const formatDecimal = function(num, decimal = 2) {
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num = num.toString()
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const index = num.indexOf('.')
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if (index !== -1) {
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num = num.substring(0, decimal + index + 1)
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} else {
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num = num.substring(0)
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}
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//截取后保留两位小数
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return parseFloat(num).toFixed(decimal)
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}
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const model = {
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// 分转元
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// amount - 金额 parseFloat - 是否转换为数字格式， 默认String
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cert2Dollar(amount, needParseFloat = false) {
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if (needParseFloat) { // parseFlot
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return formatDecimal(amount / 100)
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}
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return formatDecimal(amount / 100)
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}
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}
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export default model |