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Clearer CachingDecorator comments

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- comments are in pairs. The first of the pair talks about what
   happened "caching" and the second pair talks about what was
   alerted "the same". This is confusing.
 - changed comment so both lines tell the reader what happened
   and what result was returned.
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Richard 2021-02-01 18:07:49 +00:00
parent 97ef86242f
commit 18534d3abd
1 changed files with 4 additions and 4 deletions
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1-js/06-advanced-functions/09-call-apply-decorators/article.md
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@ -36,11 +36,11 @@ function cachingDecorator(func) {
slow = cachingDecorator(slow); slow = cachingDecorator(slow);
alert( slow(1) ); // slow(1) is cached alert( slow(1) ); // slow(1) is cached and the result returned
alert( "Again: " + slow(1) ); // the same alert( "Again: " + slow(1) ); // slow(1) result returned from cache
alert( slow(2) ); // slow(2) is cached alert( slow(2) ); // slow(2) is cached and the result returned
alert( "Again: " + slow(2) ); // the same as the previous line alert( "Again: " + slow(2) ); // slow(2) result returned from cache
``` ```
In the code above `cachingDecorator` is a *decorator*: a special function that takes another function and alters its behavior. In the code above `cachingDecorator` is a *decorator*: a special function that takes another function and alters its behavior.