function test() {
var different = false;
for (var j = 0; j < arguments.length; j++) {
if (j % 2 === 0) different = true;
}
return different;
}
function test2(v) {
var different = false;
for (var j = 0; j < v.length; j++) {
if (j % 2 === 0) different = true;
}
return different;
}
for(var i = 0; i < 10000; i++) {
test(i, i + 1, i + 2, i + 3, i + 4, i + 5);
}
for(var i = 0; i < 10000; i++) {
test2([i, i + 1, i + 2, i + 3, i + 4, i + 5]);
}
--enable-precise-memory-info
flag.
Test case name | Result |
---|---|
arguments | |
array arg |
Test name | Executions per second |
---|---|
arguments | 9963.1 Ops/sec |
array arg | 10566.9 Ops/sec |
Let's break down what's being tested in the provided JSON benchmark.
Benchmark Definition
The benchmark consists of two test cases:
arguments vs array arg
: This test case compares the performance of using an array versus an array of arguments when calling the test
function. The test
function takes a variable number of arguments, and the test checks whether every other argument is set to true
.for(var i = 0; i < 10000; i++) {\r\n test(i, i + 1, i + 2, i + 3, i + 4, i + 5);\r\n}
: This test case measures the performance of calling the test
function with a fixed number of arguments. The test is repeated for 10,000 iterations.Options Compared
In this benchmark, two options are compared:
test
function.test
function.Pros and Cons
Here's a brief summary of the pros and cons of each approach:
Arguments
Pros:
Cons:
Array Arg
Pros:
Cons:
In general, using arguments can lead to more concise code, but may incur performance overhead. Passing an array as a single argument provides more predictability and control, but requires additional setup.
Libraries
None of the provided benchmark code uses any external libraries.
Special JS Features or Syntax
There are no special JavaScript features or syntax mentioned in the benchmark definition.
Other Alternatives
If you wanted to test alternative approaches, you could consider:
reduce()
instead of manual looping.Keep in mind that the specific options and alternatives will depend on the goals and requirements of your benchmark.