feat: add formatNumber

apps/web-antd/src/adapter/vxe-table.ts

@@ -283,6 +283,22 @@ setupVbenVxeTable({
         return cellValue.toFixed(digits);
       },
     });
+
+    vxeUI.formats.add('formatFraction', {
+      tableCellFormatMethod({ cellValue }) {
+        if (cellValue === null || cellValue === undefined) {
+          return '0.00';
+        }
+        if (isString(cellValue)) {
+          cellValue = Number.parseFloat(cellValue);
+        }
+        // 如果非 number，则直接返回空串
+        if (Number.isNaN(cellValue)) {
+          return '0.00';
+        }
+        return `${(cellValue / 100).toFixed(2)}元`;
+      },
+    });
   },
   useVbenForm,
 });

apps/web-antd/src/utils/formatNumber.ts

@@ -0,0 +1,82 @@
+/**
+ * 将一个整数转换为分数保留两位小数
+ * @param num
+ */
+export function formatToFraction(num: number | string | undefined): string {
+  if (num === undefined) return '0.00';
+  const parsedNumber = typeof num === 'string' ? Number.parseFloat(num) : num;
+  return (parsedNumber / 100).toFixed(2);
+}
+
+/**
+ * 将一个数转换为 1.00 这样
+ * 数据呈现的时候使用
+ *
+ * @param num 整数
+ */
+export function floatToFixed2(num: number | string | undefined): string {
+  let str = '0.00';
+  if (num === undefined) {
+    return str;
+  }
+  const f = formatToFraction(num);
+  const decimalPart = f.toString().split('.')[1];
+  const len = decimalPart ? decimalPart.length : 0;
+  switch (len) {
+    case 0: {
+      str = `${f.toString()}.00`;
+      break;
+    }
+    case 1: {
+      str = `${f.toString()}0`;
+      break;
+    }
+    case 2: {
+      str = f.toString();
+      break;
+    }
+  }
+  return str;
+}
+
+/**
+ * 将一个分数转换为整数
+ * @param num
+ */
+export function convertToInteger(num: number | string | undefined): number {
+  if (num === undefined) return 0;
+  const parsedNumber = typeof num === 'string' ? Number.parseFloat(num) : num;
+  return Math.round(parsedNumber * 100);
+}
+
+/**
+ * 元转分
+ */
+export function yuanToFen(amount: number | string): number {
+  return convertToInteger(amount);
+}
+
+/**
+ * 分转元
+ */
+export function fenToYuan(price: number | string): string {
+  return formatToFraction(price);
+}
+
+/**
+ * 计算环比
+ *
+ * @param value 当前数值
+ * @param reference 对比数值
+ */
+export function calculateRelativeRate(
+  value?: number,
+  reference?: number,
+): number {
+  // 防止除0
+  if (!reference || reference === 0) return 0;
+
+  return Number.parseFloat(
+    ((100 * ((value || 0) - reference)) / reference).toFixed(0),
+  );
+}

apps/web-antd/src/utils/index.ts

@@ -1,6 +1,7 @@
 export * from './constants';
 export * from './dict';
 export * from './download';
+export * from './formatNumber';
 export * from './formatTime';
 export * from './formCreate';
 export * from './rangePickerProps';