feat: added tapLog()

packages/rxjs/src/lib/rxjs/misc.ts

@@ -0,0 +1,21 @@
+import { MonoTypeOperatorFunction, tap } from 'rxjs';
+
+/**
+ * Used to log a message to the console.
+ * 
+ * @param messageOrFunction 
+ * @returns 
+ */
+export function tapLog<T = any>(message: string | number, consoleLogFn?: 'log' | 'warn' | 'error'): MonoTypeOperatorFunction<T>;
+export function tapLog<T = any>(messageFunction: (value: T) => any[], consoleLogFn?: 'log' | 'warn' | 'error'): MonoTypeOperatorFunction<T>;
+export function tapLog<T = any>(messageOrFunction: (string | number) | ((value: T) => any[]), consoleLogFn: 'log' | 'warn' | 'error' = 'log'): MonoTypeOperatorFunction<T> {
+  let operator: MonoTypeOperatorFunction<T>;
+
+  if (typeof messageOrFunction === 'function') {
+    operator = tap((x) => console[consoleLogFn].apply(undefined, messageOrFunction(x)));
+  } else {
+    operator = tap((x) => console[consoleLogFn](`${messageOrFunction}`, x));
+  }
+
+  return operator;
+}