57 lines
1.4 KiB
JavaScript
57 lines
1.4 KiB
JavaScript
// 格式化金额
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const formatAmount = (amount, decimals = 2) => {
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if (!amount && amount !== 0) return '--';
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return Number(amount).toFixed(decimals).replace(/\B(?=(\d{3})+(?!\d))/g, ',');
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};
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// 格式化数量（支持万、亿单位）
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const formatQuantity = (num) => {
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if (!num && num !== 0) return '--';
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if (num >= 100000000) {
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return (num / 100000000).toFixed(2) + '亿';
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}
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if (num >= 10000) {
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return (num / 10000).toFixed(2) + '万';
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}
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return num.toFixed(2) + '元';
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};
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// 格式化文件大小
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const formatFileSize = (bytes) => {
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if (!bytes && bytes !== 0) return '--';
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const units = ['B', 'KB', 'MB', 'GB', 'TB'];
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let num = bytes;
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let index = 0;
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while (num >= 1024 && index < units.length - 1) {
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num /= 1024;
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index++;
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}
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return num.toFixed(2) + units[index];
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};
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// 格式化手机号
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const formatPhone = (phone) => {
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if (!phone) return '';
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return phone.replace(/(\d{3})\d{4}(\d{4})/, '$1****$2');
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};
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// 格式化身份证号
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const formatIdCard = (idCard) => {
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if (!idCard) return '';
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return idCard.replace(/(\d{4})\d{10}(\d{4})/, '$1**********$2');
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};
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// 格式化银行卡号
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const formatBankCard = (cardNo) => {
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if (!cardNo) return '';
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return cardNo.replace(/(\d{4})\d+(\d{4})/, '$1 **** **** $2');
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};
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module.exports = {
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formatAmount,
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formatQuantity,
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formatFileSize,
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formatPhone,
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formatIdCard,
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formatBankCard
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}; |