refactor: improve the verification number function

Author: betavs

packages/components/common/validator.ts

@@ -16,8 +16,8 @@ export function isDef(value: unknown): boolean {
   return !isUndefined(value) && !isNull(value);
 }
 
-export function isNumber(value: string) {
-  return /^\d+(\.\d+)?$/.test(value);
+export function isNumber(value: string | number): boolean {
+  return typeof value === 'number' || /^-?\d+(\.\d+)?$/.test(value);
 }
 
 export function isBoolean(value: unknown): value is boolean {

packages/components/skeleton/skeleton.ts

@@ -69,7 +69,8 @@ export default class Skeleton extends SuperComponent {
 
       const parsedRowCols = rowCols.map((item) => {
         if (isNumber(item)) {
-          return new Array(item).fill({
+          const len = Number(item);
+          return new Array(len > 0 ? len : 1).fill({
             class: this.getColItemClass({ type: 'text' }),
             style: {},
           });