feat(str): add new implementation

Author: houssenedao

lib/str/string.interface.ts

@@ -1,27 +1,29 @@
 export interface IString {
   after(): this;
-  camel(): this;
+  camel(value: string): this;
   finish(): this;
   is(): this;
   slug(): this;
   startWith(): this;
-  upper(): this;
+  upper(value: string): this;
+  capitalize(value: string): this;
   snake(): this;
   studly(): this;
   words(): this;
   title(): this;
   singular(): this;
-  plural(): this;
+  plural(value: string, count: number): this;
   start(): this;
+  random(length: number): this;
   end(): this;
   endWith(): this;
   contains(): this;
   before(): this;
   lower(value: string): this;
-  length(value: string, encoding: string): this;
+  l(value: string, encoding: string): this;
   kebab(value: string): this;
-  limit(value: string, limit?: number, end?: string): this;
+  limit(value: string, limit: number, end: string): this;
   replaceFirst(): this;
   replaceLast(): this;
-  ucFirst(): this;
+  ucFirst(value: string): this;
 }

lib/str/string.ts

@@ -1,3 +1,114 @@
-export class Str extends String {
-  //
+import { IString } from './string.interface';
+
+export class Str extends String implements IString {
+  after(): this {
+    return this;
+  }
+
+  before(): this {
+    return this;
+  }
+
+  camel(value: string): this {
+    return this;
+  }
+
+  capitalize(value: string): this {
+    return this;
+  }
+
+  contains(): this {
+    return this;
+  }
+
+  end(): this {
+    return this;
+  }
+
+  endWith(): this {
+    return this;
+  }
+
+  finish(): this {
+    return this;
+  }
+
+  is(): this {
+    return this;
+  }
+
+  kebab(value: string): this {
+    return this;
+  }
+
+  limit(value: string, limit = 100, end = '...'): this {
+    return this;
+  }
+
+  lower(value: string): this {
+    value;
+    return this;
+  }
+
+  plural(value: string, count: number): this {
+    return this;
+  }
+
+  random(length = 16): this {
+    return this;
+  }
+
+  replaceFirst(): this {
+    return this;
+  }
+
+  replaceLast(): this {
+    return this;
+  }
+
+  singular(): this {
+    return this;
+  }
+
+  slug(): this {
+    return this;
+  }
+
+  snake(): this {
+    return this;
+  }
+
+  start(): this {
+    return this;
+  }
+
+  startWith(): this {
+    return this;
+  }
+
+  studly(): this {
+    return this;
+  }
+
+  title(): this {
+    return this;
+  }
+
+  ucFirst(value: string): this {
+    return this;
+  }
+
+  upper(value: string): this {
+    value.toUpperCase();
+
+    return this;
+  }
+
+  words(): this {
+    return this;
+  }
+
+  l(value: string, encoding: string): this {
+    return this;
+  }
 }