add aliases for capitalized methods

README.md

@@ -12,10 +12,10 @@ Instead of returning a nullish error, Grip always returns a consistent status ob
 
 ```javascript
 const [value, status] = grip(callable)
-if (status.Of(MySpecificError)) {
+if (status.of(MySpecificError)) {
   // handle specific error
 }
-if (status.Fail()) {
+if (status.fail()) {
   // handle any error
 }
 ```
@@ -24,10 +24,10 @@ The call result is better than tuple:
 
 ```javascript
 const result = grip(callable)
-if (result.Fail()) {
+if (result.fail()) {
   // handle any error
 }
-if (result.Of(MySpecificError)) {
+if (result.of(MySpecificError)) {
   // handle specific error
 }
 

dist/grip.js

@@ -18,12 +18,21 @@ class Err extends Error {
   Ok() {
     return false;
   }
+  ok() {
+    return this.Ok();
+  }
   Fail() {
     return true;
   }
+  fail() {
+    return this.Fail();
+  }
   Of(cls) {
     return this.cause instanceof cls || this instanceof cls;
   }
+  of(cls) {
+    return this.Of(cls);
+  }
   static fromCatch(error) {
     const e = new Err(typeof error === "string" ? error : error.message);
     e.cause = error;
@@ -36,12 +45,21 @@ class Ok {
   Ok() {
     return true;
   }
+  ok() {
+    return this.Ok();
+  }
   Fail() {
     return false;
   }
+  fail() {
+    return this.Fail();
+  }
   Of(cls) {
     return this instanceof cls;
   }
+  of(cls) {
+    return this.Of(cls);
+  }
   toString() {
     return "Ok";
   }
@@ -64,12 +82,21 @@ class Result extends Array {
   Ok() {
     return this[1].Ok();
   }
+  ok() {
+    return this.Ok();
+  }
   Fail() {
     return this[1].Fail();
   }
+  fail() {
+    return this.Fail();
+  }
   Of(cls) {
     return this[1].Of(cls);
   }
+  of(cls) {
+    return this.Of(cls);
+  }
   Iter() {
     const value = this.value;
     const that = this;
@@ -92,6 +119,9 @@ class Result extends Array {
       }
     };
   }
+  iter() {
+    return this.Iter();
+  }
 }
 var promise = (result) => {
   return result.then((res) => new Result(res, new Ok)).catch((err) => new Result(null, Err.fromCatch(err)));

grip.test.ts

@@ -49,7 +49,7 @@ test("fetch err", async () => {
   const [result, status] = await grip(fetch("https://localhost:30012"));
   expect(status.Ok()).toBe(false);
   expect(result === null).toBe(true);
-  expect(status.Of(Error)).toBe(true);
+  expect(status.of(Error)).toBe(true);
 });
 
 test("fetch json", async () => {

grip.ts

@@ -2,20 +2,38 @@ interface Status {
   message?: string;
   cause?: any;
   Ok(): boolean;
+  /* alias Ok */
+  ok(): boolean;
   Fail(): boolean;
+  /* alias Fail */
+  fail(): boolean;
   Of(cls: any): boolean;
+  /* alias Of */
+  of(cls: any): boolean;
 }
 
 export class Err extends Error {
   Ok() {
     return false;
   }
+  /* alias Ok */
+  ok() {
+    return this.Ok();
+  }
   Fail() {
     return true;
   }
+  /* alias Fail */
+  fail() {
+    return this.Fail();
+  }
   Of(cls: any) {
     return this.cause instanceof cls || this instanceof cls;
   }
+  /* alias Of */
+  of(cls: any) {
+    return this.Of(cls);
+  }
   static fromCatch(error: any) {
     const e = new Err(typeof error === "string" ? error : error.message);
     e.cause = error;
@@ -28,12 +46,24 @@ export class Ok {
   Ok() {
     return true;
   }
+  /* alias Ok */
+  ok() {
+    return this.Ok();
+  }
   Fail() {
     return false;
   }
+  /* alias Fail */
+  fail() {
+    return this.Fail();
+  }
   Of(cls: any) {
     return this instanceof cls;
   }
+  /* alias Of */
+  of(cls: any) {
+    return this.Of(cls);
+  }
   toString() {
     return "Ok";
   }
@@ -66,12 +96,24 @@ class Result<T> extends Array<T | Status> implements IResult<T> {
   Ok() {
     return (this[1] as Status).Ok();
   }
+  /* alias Ok */
+  ok() {
+    return this.Ok();
+  }
   Fail() {
     return (this[1] as Status).Fail();
   }
+  /* alias Fail */
+  fail() {
+    return this.Fail();
+  }
   Of(cls: any) {
     return (this[1] as Status).Of(cls);
   }
+  /* alias Of */
+  of(cls: any) {
+    return this.Of(cls);
+  }
   Iter() {
     const value = this.value;
     const that = this;
@@ -100,6 +142,10 @@ class Result<T> extends Array<T | Status> implements IResult<T> {
       },
     };
   }
+  /* alias Iter */
+  iter() {
+    return this.Iter();
+  }
 }
 
 type Unwrap<T> =