<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.min.js"></script>
window.obj = {};
for (var i = 0, len = 100; i < len; i++) {
var arr = []
obj['key' + i] = arr
for (var n = 0, len = 100; n < len; n++) {
arr.push({ ['key' + n]: n });
}
}
_.reduce(obj, (acc, val, key) => {
acc[key] = val.map(d => ({ label: key, value: val }));
return acc;
}, {})
Object.entries(obj).reduce((acc, [key, val]) => {
acc[key] = val.map(d => ({ label: key, value: val }));
return acc;
}, {})
--enable-precise-memory-info
flag.
Test case name | Result |
---|---|
Lodash | |
Native |
Test name | Executions per second |
---|---|
Lodash | 12554.2 Ops/sec |
Native | 8321.8 Ops/sec |
I'd be happy to help you understand what's being tested in the provided JSON.
Overview
The benchmark tests two approaches to reducing an object: using Lodash (a popular JavaScript utility library) versus doing it natively (without any external libraries). The test case creates a large object with nested arrays and then reduces it to a new object with transformed data.
Options being compared
There are two options being compared:
_.reduce
method from Lodash to reduce the object.Pros and Cons of each approach:
Lodash:
Pros:
Cons:
Native:
Pros:
Cons:
Library used: Lodash
Lodash is a popular JavaScript utility library that provides a collection of functions for tasks such as array manipulation, object transformation, and more. In this case, the _reduce
method is used to reduce an object to a new one.
Special JS feature or syntax
None mentioned in the provided JSON. However, it's worth noting that some modern JavaScript features like async/await
, let const
declarations, or newer methods (e.g., map()
, forEach()
) might be relevant to optimizing the benchmark code.
Other alternatives
If you wanted to reduce the object natively without using Lodash, you could use a simple loop with array methods like forEach()
or map()
. However, this would require more manual effort and may not be as efficient as the native approach. Other libraries or frameworks might also provide similar functionality, such as Ramda or Underscore.js.
To improve the benchmarking process, it's essential to consider factors like:
The benchmark results can provide valuable insights into the performance differences between Lodash and native approaches, helping developers make informed decisions about their code optimizations.