doc: added note warning about change to console.endTime()

Unintended functionality was removed from console.endTime by nodejs#3562. Prior to that, you could call console.endTime multiple times for the same label. PR-URL: nodejs#6454 Reviewed-By: James M Snell <[email protected]> Reviewed-By: Robert Lindstaedt <[email protected]> Reviewed-By: Sakthipriyan Vairamani <[email protected]> Reviewed-By: Jeremy Whitlock <[email protected]>
joelostrowski · May 4, 2016 · 1c4fd80 · 1c4fd80
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commit 1c4fd80
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diff --git a/doc/api/console.md b/doc/api/console.md
@@ -230,6 +230,11 @@ console.timeEnd('100-elements');
 // prints 100-elements: 225.438ms
 ```
 
+*Note: As of Node.js v6.0.0, `console.timeEnd()` deletes the timer to avoid
+leaking it. On older versions, the timer persisted. This allowed
+`console.timeEnd()` to be called multiple times for the same label. This
+functionality was unintended and is no longer supported.*
+
 ### console.trace(message[, ...])
 
 Prints to `stderr` the string `'Trace :'`, followed by the [`util.format()`][]