feat(util:format): support scientific notation of isNum (#1567)

Author: cipchk

packages/util/form/validate.spec.ts

@@ -10,10 +10,10 @@ describe('utils: form-validate', () => {
     for (const item of data) {
       const ctr = new FormControl(item.k);
       const fn = _Validators[methodName] as (control: AbstractControl) => ValidationErrors | null;
+      const res = fn(ctr);
       if (item.v) {
-        expect(fn(ctr)).toBeNull();
+        expect(res).toBeNull();
       } else {
-        const res = fn(ctr);
         expect(res).not.toBeNull();
         expect((res as NzSafeAny)[methodName]).toEqual(true);
       }

packages/util/format/validate.spec.ts

@@ -10,7 +10,12 @@ export const TEST_DATA = {
     { k: '-12', v: true },
     { k: 123, v: true },
     { k: '123.1.2', v: false },
-    { k: '123a', v: false }
+    { k: '123a', v: false },
+    { k: '1.123e-10', v: true },
+    { k: '+1.123e-10', v: true },
+    { k: '+.1e-1', v: true },
+    { k: '1.0e+1', v: true },
+    { k: '1.0e+', v: false }
   ],
   int: [
     { k: '123', v: true },

packages/util/format/validate.ts

@@ -1,5 +1,5 @@
 export const REGEX_STR = {
-  num: `((-?\\d+\\.\\d+)|(-?\\d+)|(-?\\.\\d+))`,
+  num: `(([-+]?\\d+\\.\\d+)|([-+]?\\d+)|([-+]?\\.\\d+))(?:[eE]([-+]?\\d+))?`,
   idCard: `(^\\d{15}$)|(^\\d{17}(?:[0-9]|X)$)`,
   mobile: `^(0|\\+?86|17951)?1[0-9]{10}$`,
   url: `(((^https?:(?:\/\/)?)(?:[-;:&=\\+\\$,\\w]+@)?[A-Za-z0-9.-]+(?::\\d+)?|(?:www.|[-;:&=\\+\\$,\\w]+@)[A-Za-z0-9.-]+)((?:\/[\\+~%\\/.\\w-_]*)?\\??(?:[-\\+=&;%@.\\w_]*)#?(?:[\\w]*))?)`,