fix(Stepper): incorrect value when format minus value (#6238)

src/utils/format/number.ts

@@ -1,3 +1,27 @@
 export function range(num: number, min: number, max: number): number {
   return Math.min(Math.max(num, min), max);
 }
+
+function trimExtraChar(value: string, char: string, regExp: RegExp) {
+  const index = value.indexOf(char);
+
+  if (index > -1) {
+    return value.slice(0, index + 1) + value.slice(index).replace(regExp, '');
+  }
+
+  return value;
+}
+
+export function formatNumber(value: string, allowDot?: boolean) {
+  if (allowDot) {
+    value = trimExtraChar(value, '.', /\./g);
+  } else {
+    value = value.split('.')[0];
+  }
+
+  value = trimExtraChar(value, '-', /-/g);
+
+  const regExp = allowDot ? /[^-0-9.]/g : /[^-0-9]/g;
+
+  return value.replace(regExp, '');
+}

src/utils/test/index.spec.js

@@ -8,6 +8,7 @@ import { isMobile } from '../validate/mobile';
 import { isNumeric } from '../validate/number';
 import { isAndroid } from '../validate/system';
 import { camelize } from '../format/string';
+import { formatNumber } from '../format/number';
 
 test('deepClone', () => {
   const a = { foo: 0 };
@@ -95,3 +96,21 @@ test('isNumeric', () => {
   expect(isNumeric('abc')).toBeFalsy();
   expect(isNumeric('1b2')).toBeFalsy();
 });
+
+test('formatNumber', () => {
+  expect(formatNumber('abc')).toEqual('');
+  expect(formatNumber('1.2')).toEqual('1');
+  expect(formatNumber('abc1.2')).toEqual('1');
+  expect(formatNumber('123.4.')).toEqual('123');
+
+  // with dot
+  expect(formatNumber('abc', true)).toEqual('');
+  expect(formatNumber('1.2', true)).toEqual('1.2');
+  expect(formatNumber('abc1.2', true)).toEqual('1.2');
+  expect(formatNumber('123.4.', true)).toEqual('123.4');
+
+  // minus
+  expect(formatNumber('-1.2')).toEqual('-1');
+  expect(formatNumber('-1.2', true)).toEqual('-1.2');
+  expect(formatNumber('-1.2-', true)).toEqual('-1.2');
+});