fix is numeric

src/validators/isNumeric.test.ts

@@ -6,21 +6,28 @@ describe("isNumeric", function () {
     expect(isNumeric("33")).toBe(true);
     expect(isNumeric("-33")).toBe(true);
     expect(isNumeric("2e12")).toBe(true);
+    expect(isNumeric("2E-5")).toBe(true);
     expect(isNumeric("2.22")).toBe(true);
     expect(isNumeric(".22")).toBe(true);
     expect(isNumeric("0xff")).toBe(true);
+    expect(isNumeric("0xF")).toBe(true);
+    expect(isNumeric("0Xabc123")).toBe(true);
     expect(isNumeric("0b11111111")).toBe(true);
+    expect(isNumeric("0B0")).toBe(true);
     expect(isNumeric("0.255e3")).toBe(true);
   });
 
   it("checks false", function () {
+    expect(isNumeric("570f0248-1e00-4cbf-9a01-ea1fe20ce0b5")).toBe(false);
     expect(isNumeric("string")).toBe(false);
     expect(isNumeric("")).toBe(false);
     expect(isNumeric(" ")).toBe(false);
     expect(isNumeric(" 1 ")).toBe(false);
     expect(isNumeric("1 3")).toBe(false);
     expect(isNumeric("..1")).toBe(false);
     expect(isNumeric("\t")).toBe(false);
+    expect(isNumeric("0B2")).toBe(false);
+    expect(isNumeric("0xzy")).toBe(false);
     expect(isNumeric("\n")).toBe(false);
     expect(isNumeric("\r")).toBe(false);
     expect(isNumeric(Infinity)).toBe(false);

src/validators/isNumeric.ts

@@ -1,18 +1,22 @@
 import { isNumber } from "./isNumber";
-import { isSpacedString } from "./isSpacedString";
 import { isString } from "./isString";
 
 /**
  *
  * @example isNumeric(1) => true
+ * @example isNumeric(10e8) => true
  * @example isNumeric('1') => true
  * @example isNumeric('1.1') => true
  * @example isNumeric('1.1.1') => false
+ * @example isNumeric('1-1') => false
  */
 export const isNumeric = (arg: number | string): boolean => {
   if (isNumber(arg)) return true;
 
-  if (!isString(arg) || isSpacedString(arg)) return false;
+  // safety check, no other types are allowed
+  if (!isString(arg)) return false;
 
-  return !isNaN(parseFloat(arg));
+  return /^[+-]?((\d+(\.\d*)?|\.\d+)([eE][+-]?\d+)?|0[xX][\dA-Fa-f]+|0[bB][01]+)$/.test(
+    arg
+  );
 };