console: allow `options` object as constructor arg

PR-URL: https://github.com/nodejs/node/pull/19372
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

1 files changed, 21 insertions, 6 deletions

diff --git a/lib/console.js b/lib/console.js
index 456c0cc439..9557b27fbc 100644
--- a/lib/console.js
+++ b/lib/console.js
@@ -51,16 +51,28 @@ const {
 // Track amount of indentation required via `console.group()`.
 const kGroupIndent = Symbol('groupIndent');
 
-function Console(stdout, stderr, ignoreErrors = true) {
+function Console(options /* or: stdout, stderr, ignoreErrors = true */) {
   if (!(this instanceof Console)) {
-    return new Console(stdout, stderr, ignoreErrors);
+    return new Console(...arguments);
   }
+
+  let stdout, stderr, ignoreErrors;
+  if (options && typeof options.write !== 'function') {
+    ({
+      stdout,
+      stderr = stdout,
+      ignoreErrors = true
+    } = options);
+  } else {
+    stdout = options;
+    stderr = arguments[1];
+    ignoreErrors = arguments[2] === undefined ? true : arguments[2];
+  }
+
   if (!stdout || typeof stdout.write !== 'function') {
     throw new ERR_CONSOLE_WRITABLE_STREAM('stdout');
   }
-  if (!stderr) {
-    stderr = stdout;
-  } else if (typeof stderr.write !== 'function') {
+  if (!stderr || typeof stderr.write !== 'function') {
     throw new ERR_CONSOLE_WRITABLE_STREAM('stderr');
   }
 
@@ -369,7 +381,10 @@ Console.prototype.table = function(tabularData, properties) {
   return final(keys, values);
 };
 
-module.exports = new Console(process.stdout, process.stderr);
+module.exports = new Console({
+  stdout: process.stdout,
+  stderr: process.stderr
+});
 module.exports.Console = Console;
 
 function noop() {}