var tgt = '1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20'
tgt.split(',').length
var tgt = '1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20'
var total = 0
total +=1
total +=1
total +=1
total +=1
total +=1
total +=1
total +=1
total +=1
total +=1
total +=1
total +=1
total +=1
total +=1
total +=1
total +=1
total +=1
total +=1
total +=1
total +=1
total +=1
--enable-precise-memory-info
flag.
Test case name | Result |
---|---|
Split | |
Number increase |
Test name | Executions per second |
---|---|
Split | 5080236.5 Ops/sec |
Number increase | 741550976.0 Ops/sec |
Let's dive into the world of JavaScript microbenchmarks.
Benchmark Definition JSON
The provided benchmark definition represents a simple test case that compares two approaches to count the number of elements in an array: split()
vs count and increment
. The script preparation code is empty, which means the test will use a predefined string as input.
Test Cases
There are two individual test cases:
split()
method to split the input string into an array and then counts the number of elements in the resulting array using the length
property.total
20 times, simulating the count operation.Options Compared
The two options being compared are:
total
is incremented 20 times to simulate a simple counting operation.Pros and Cons
split()
method.Library Used
There is no specific library mentioned in the benchmark definition. However, it's worth noting that some browsers have built-in optimizations for string splitting (e.g., Google Chrome's string-splitting optimization).
Special JS Feature or Syntax
None are explicitly mentioned in this benchmark.
Other Alternatives
If you're interested in exploring alternative approaches to counting elements in an array, here are a few options:
split()
but uses the built-in length property of arrays.Math.random()
to generate random indices and sum them up to simulate a count operation.Keep in mind that these alternatives may not directly compare to the split()
vs count and increment
scenario presented in this benchmark.