(chore) throttle deprecation messages (#3092)

Author: mihkeleidast

CHANGES.md

@@ -1,3 +1,10 @@
+## Version 10.7.2
+
+- (chore) throttle deprecation messages (#3092) [Mihkel Eidast][]
+
+[Mihkel Eidast]: https://github.com/mihkeleidast
+
+
 ## Version 10.7.1
 
 - fix(parser) Resolves issues with TypeScript types [Josh Goebel][]

src/lib/logger.js

@@ -5,6 +5,11 @@ https://github.com/highlightjs/highlight.js/issues/2880#issuecomment-747275419
 
 */
 
+/**
+ * @type {Record<string, boolean>}
+ */
+const seenDeprecations = {};
+
 /**
  * @param {string} message
  */
@@ -32,5 +37,8 @@ export const notice = (message) => {
  * @param {string} message
  */
 export const deprecated = (version, message) => {
+  if (seenDeprecations[`${version}/${message}`]) return;
+
   console.log(`Deprecated as of ${version}. ${message}`);
+  seenDeprecations[`${version}/${message}`] = true;
 };