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7 changes: 3 additions & 4 deletions README.md
Original file line number Diff line number Diff line change
Expand Up @@ -977,10 +977,9 @@ function combine(val1, val2) {
### Don't over-optimize

Modern browsers do a lot of optimization under-the-hood at runtime. A lot of
times, if you are optimizing then you are just wasting your time. [There are good
resources](https://github.com/petkaantonov/bluebird/wiki/Optimization-killers)
for seeing where optimization is lacking. Target those in the meantime, until
they are fixed if they can be.
times, if you are optimizing then you are just wasting your time. Use browser
developer tools and performance profiling to identify real bottlenecks before
optimizing. Target those in the meantime, until they are fixed if they can be.

**Bad:**

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