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34 lines
984 B
34 lines
984 B
function numberFormat(number, decimals = 2, dec_point, thousands_sep) {
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/*
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* 参数说明：
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* number：要格式化的数字
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* decimals：保留几位小数
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* dec_point：小数点符号
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* thousands_sep：千分位符号
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* */
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number = (number + '').replace(/[^0-9+-Ee.]/g, '')
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let n = !isFinite(+number) ? 0 : +number
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let prec = !isFinite(+decimals) ? 0 : Math.abs(decimals)
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let sep = (typeof thousands_sep === 'undefined') ? ',' : thousands_sep
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let dec = (typeof dec_point === 'undefined') ? '.' : dec_point
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let s = ''
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const toFixedFix = function(n, prec) {
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let k = Math.pow(10, prec)
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return '' + Math.floor(n * k) / k
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};
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s = (prec ? toFixedFix(n, prec) : '' + Math.floor(n)).split('.')
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let re = /(-?\d+)(\d{3})/
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while (re.test(s[0])) {
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s[0] = s[0].replace(re, "$1" + sep + "$2")
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}
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if ((s[1] || '').length < prec) {
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s[1] = s[1] || ''
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s[1] += new Array(prec - s[1].length + 1).join('0')
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}
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return s.join(dec)
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}
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export default {
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numberFormat
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}
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