Bugfix and dependency updates

README.md

@@ -167,7 +167,7 @@ logger.fatal(new Error("I am a pretty Error with a stacktrace."));
 ## All Features
 
 - **Universal:** Works in browsers and Node.js
-- **Tested:** 100% code coverage, CI
+- **Tested:** Great code coverage, CI
 - **Super customizable:** Every aspect can be overwritten
 - **Fully typed:** Written in TypeScript, with native TypeScript support
 - **Default log level:** `silly`, `trace`, `debug`, `info`, `warn`, `error`, `fatal` (different colors)

docs/README.md

@@ -167,7 +167,7 @@ logger.fatal(new Error("I am a pretty Error with a stacktrace."));
 ## All Features
 
 - **Universal:** Works in browsers and Node.js
-- **Tested:** 100% code coverage, CI
+- **Tested:** Great code coverage, CI
 - **Super customizable:** Every aspect can be overwritten
 - **Fully typed:** Written in TypeScript, with native TypeScript support
 - **Default log level:** `silly`, `trace`, `debug`, `info`, `warn`, `error`, `fatal` (different colors)
@@ -686,7 +686,7 @@ For `pretty` logs:
 For `JSON` logs (no formatting happens here):
 ```typescript
     const logger = new Logger({
-      type: "pretty",
+      type: "json",
       overwrite: {
         transportJSON: (logObjWithMeta: any) => {
           // transport the LogObj to console, StdOut, a file or an external service

examples/nodejs/index2.ts

@@ -119,3 +119,14 @@ class CustomError extends Error {
 
 const err = new CustomError("a", "b");
 logger.error(err);
+
+console.log("***********");
+logger.debug(null);
+logger.debug(undefined);
+logger.debug("*", undefined);
+console.log("###############");
+//jsonLogger.debug(null);
+jsonLogger.debug(undefined);
+//jsonLogger.debug('*', undefined);
+console.log("###############");
+logger.debug(new URL("https://www.test.de"));

package.json

@@ -1,6 +1,6 @@
 {
   "name": "tslog",
-  "version": "4.9.1",
+  "version": "4.9.2",
   "description": "Extensible TypeScript Logger for Node.js and Browser.",
   "author": "Eugene <[email protected]> (https://fullstack.build)",
   "license": "MIT",

src/BaseLogger.ts

@@ -213,7 +213,13 @@ export class BaseLogger<LogObj> {
       return Object.getOwnPropertyNames(source).reduce((o, prop) => {
         o[prop] = keys.includes(this.settings?.maskValuesOfKeysCaseInsensitive !== true ? prop : prop.toLowerCase())
           ? this.settings.maskPlaceholder
-          : this._recursiveCloneAndMaskValuesOfKeys((source as Record<string, unknown>)[prop], keys, seen);
+          : (() => {
+              try {
+                return this._recursiveCloneAndMaskValuesOfKeys((source as Record<string, unknown>)[prop], keys, seen);
+              } catch (e) {
+                return null;
+              }
+            })();
         return o;
       }, baseObject) as T;
     } else {

src/runtime/browser/index.ts

@@ -62,8 +62,7 @@ export function getCallerStackFrame(stackDepthLevel: number, error: Error = Erro
 }
 
 export function getErrorTrace(error: Error): IStackFrame[] {
-  return (error as Error)?.stack
-    ?.split("\n")
+  return ((error as Error)?.stack?.split("\n") ?? [])
     ?.filter((line: string) => !line.includes("Error: "))
     ?.reduce((result: IStackFrame[], line: string) => {
       result.push(stackLineToStackFrame(line));

src/runtime/browser/util.inspect.polyfil.ts

@@ -63,7 +63,7 @@ function isBoolean(arg: unknown) {
 }
 
 function isUndefined(arg: unknown) {
-  return arg == null;
+  return arg === undefined;
 }
 
 function stylizeNoColor(str: string) {
@@ -377,19 +377,19 @@ function reduceToSingleString(output: string[], base: string, braces: string[]):
   return braces[0] + (base === "" ? "" : base + "\n") + "  " + output.join(",\n  ") + " " + braces[1];
 }
 
-function _extend(origin: object, add: object) {
+function _extend(origin: object, add: object): object {
+  const typedOrigin = { ...origin } as { [key: string]: unknown };
   // Don't do anything if add isn't an object
   if (!add || !isObject(add)) return origin;
 
-  const clonedOrigin = { ...origin } as { [key: string]: unknown };
   const clonedAdd = { ...add } as { [key: string]: unknown };
 
   const keys = Object.keys(add);
   let i = keys.length;
   while (i--) {
-    clonedOrigin[keys[i]] = clonedAdd[keys[i]];
+    typedOrigin[keys[i]] = clonedAdd[keys[i]];
   }
-  return origin;
+  return typedOrigin;
 }
 
 export function formatWithOptions(inspectOptions: InspectOptions, ...args: unknown[]) {

src/runtime/nodejs/index.ts

@@ -168,6 +168,9 @@ export function transportJSON<LogObj>(json: LogObj & ILogObjMeta): void {
       if (typeof value === "bigint") {
         return `${value}`;
       }
+      if (typeof value === "undefined") {
+        return "[undefined]";
+      }
       return value;
     });
   }

tests/Browser/1_json.test.ts

@@ -75,4 +75,32 @@ describe("Browser: JSON: Log level", () => {
 
     expect(consoleOutput).toContain("Foo bar");
   });
+
+  it("pretty undefined", async () => {
+    await page.evaluate(() => {
+      // @ts-ignore
+      const logger = new tslog.Logger({ type: "pretty", stylePrettyLogs: false });
+      logger.info(undefined);
+    });
+    expect(consoleOutput).toContain("undefined");
+  });
+
+  it("pretty null", async () => {
+    await page.evaluate(() => {
+      // @ts-ignore
+      const logger = new tslog.Logger({ type: "pretty", stylePrettyLogs: false });
+      logger.info(null);
+    });
+    expect(consoleOutput).toContain("null");
+  });
+
+  it("pretty nullish", async () => {
+    await page.evaluate(() => {
+      // @ts-ignore
+      const logger = new tslog.Logger({ type: "pretty", stylePrettyLogs: false });
+      logger.info({ foo: null, bar: undefined });
+    });
+    expect(consoleOutput).toContain("null");
+    expect(consoleOutput).toContain("undefined");
+  });
 });

tests/Nodejs/4_json_Log_Types.test.ts

@@ -20,6 +20,26 @@ describe("JSON: Log Types", () => {
     expect(getConsoleLog()).toContain('"1":"Test2"');
   });
 
+  it("pretty undefined", async () => {
+    const logger = new Logger({ type: "json" });
+    logger.info(undefined);
+    expect(getConsoleLog()).toContain('"0":"[undefined]"');
+  });
+
+  it("pretty null", async () => {
+    const logger = new Logger({ type: "json" });
+    logger.info(null);
+    expect(getConsoleLog()).toContain('"0":null');
+  });
+
+  it("pretty nullish", async () => {
+    const logger = new Logger({ type: "json" });
+    logger.info({ foo: null, bar: undefined });
+
+    expect(getConsoleLog()).toContain('"foo":null');
+    expect(getConsoleLog()).toContain('"bar":"[undefined]"');
+  });
+
   test("boolean", (): void => {
     const logger = new Logger({ type: "json" });
     logger.log(1234, "testLevel", true);

tests/Nodejs/5_pretty_Log_Types.test.ts

@@ -33,6 +33,28 @@ describe("Pretty: Log Types", () => {
     expect(getConsoleLog()).toContain("Test1 Test2");
   });
 
+  it("pretty undefined", async () => {
+    const logger = new Logger({ type: "pretty", stylePrettyLogs: false });
+    logger.info(undefined);
+
+    expect(getConsoleLog()).toContain("undefined");
+  });
+
+  it("pretty null", async () => {
+    const logger = new Logger({ type: "pretty", stylePrettyLogs: false });
+    logger.info(null);
+
+    expect(getConsoleLog()).toContain("null");
+  });
+
+  it("pretty nullish", async () => {
+    const logger = new Logger({ type: "pretty", stylePrettyLogs: false });
+    logger.info({ foo: null, bar: undefined });
+
+    expect(getConsoleLog()).toContain("null");
+    expect(getConsoleLog()).toContain("undefined");
+  });
+
   test("boolean", (): void => {
     const logger = new Logger({ type: "pretty" });
     logger.log(1234, "testLevel", true);
@@ -45,6 +67,12 @@ describe("Pretty: Log Types", () => {
     expect(getConsoleLog()).toContain("555");
   });
 
+  test("null", (): void => {
+    const logger = new Logger({ type: "pretty" });
+    logger.log(1234, "testLevel", null);
+    expect(getConsoleLog()).toContain("null");
+  });
+
   test("Array, stylePrettyLogs: false", (): void => {
     const logger = new Logger({ type: "pretty", stylePrettyLogs: false });
     logger.log(1234, "testLevel", [1, 2, 3, "test"]);
@@ -94,6 +122,27 @@ describe("Pretty: Log Types", () => {
     expect(getConsoleLog()).toContain("https://example2.com/");
   });
 
+  test("Date", (): void => {
+    const logger = new Logger({ type: "pretty" });
+    const date = new Date(0);
+    logger.log(1234, "testLevel", date);
+    expect(getConsoleLog()).toContain("1970-01-01T00:00:00.000Z");
+  });
+
+  test("Map", (): void => {
+    const logger = new Logger({ type: "pretty" });
+    const map = new Map();
+    logger.log(1234, "testLevel", map);
+    expect(getConsoleLog()).toContain("Map(0) {}");
+  });
+
+  test("Set", (): void => {
+    const logger = new Logger({ type: "pretty" });
+    const set = new Set();
+    logger.log(1234, "testLevel", set);
+    expect(getConsoleLog()).toContain("Set(0) {}");
+  });
+
   test("String, Object", (): void => {
     const logger = new Logger({ type: "pretty" });
     logger.log(1234, "testLevel", "test", { test: true, nested: { 1: false } });