Add logger

Author: gordonbrander

typescript/packages/common-html/src/logger.ts

@@ -0,0 +1,26 @@
+/** Is debug logging on? */
+let isDebug = false;
+
+/**
+ * Turn on debug logging
+ * @example
+ * import { setDebug } from "curly";
+ *
+ * setDebug(true);
+ */
+export const setDebug = (value: boolean) => {
+  isDebug = value;
+};
+
+
+/** Log warning */
+export const warn = (...args: unknown[]) => {
+  console.warn(...args);
+};
+
+/** Log if debugging is on */
+export const debug = (...args: unknown[]) => {
+  if (isDebug) {
+    console.debug(...args);
+  }
+};