var x = [];
for (let i = 0; i < 1000; ++i) {
x.push({
v: Math.floor(Math.random() * 1000)
});
}
x.sort((a, b) => { return a.v - b.v });
let y = x.shift();
let b = 0;
for (const a in x) {
if (x[a].v < x[b].v) {
b = a;
}
}
let y = x.splice(b, 1);
--enable-precise-memory-info
flag.
Test case name | Result |
---|---|
Sort and Shift | |
Loop and Splice |
Test name | Executions per second |
---|---|
Sort and Shift | 78589232.0 Ops/sec |
Loop and Splice | 31055986.0 Ops/sec |
I'll break down the benchmark definition and individual test cases to explain what's being tested, compared options, pros and cons, library usage, special JavaScript features, and other considerations.
Benchmark Definition
The benchmark definition is a JSON object that contains two scripts:
Script Preparation Code
: This script creates an array x
with 1000 elements, each containing a random integer value between 0 and 1000.Html Preparation Code
: This field is empty, indicating that no HTML-related preparation code is required.Individual Test Cases
There are two test cases:
Benchmark Definition
: The script sorts the array x
in ascending order using the sort()
method with a custom comparison function (a, b) => { return a.v - b.v }
. Then, it removes the first element from the sorted array using the shift()
method and assigns it to variable y
.Benchmark Definition
: This script uses a loop to iterate through the array x
and finds the index b
of the smallest element using a simple comparison. Then, it removes the element at index b
from the array using the splice()
method with an offset of 1.Comparison of Options
Both test cases compare two approaches:
shift()
.splice()
with an offset of 1.Pros and Cons
sort()
.Library Usage
Neither test case uses any external libraries. However, Math.random()
is used in both scripts to generate random integers.
Special JavaScript Features
None of the test cases use special JavaScript features like async/await or Promises.
Other Considerations
Other Alternatives
If you're interested in exploring alternative approaches to sorting and removing elements from arrays, consider:
Array.prototype.every()
instead of Array.prototype.sort()
.Keep in mind that each approach has its trade-offs, and the best choice depends on the specific requirements of your application.