var truthyBool = true;
var falsyBool = false;
//Currently set to -1, but will change to 1 (truthyNum) and 0 (falsyNum).
var truthyNum = -1;
var falsyNum = -1;
if(truthyBool === true){
truthyNum = 1;
}
else{
truthyNum = 0;
}
if(falsyBool === true){
falsyNum = 1;
}
else{
falsyNum = 0;
}
truthyNum = truthyBool ? 1 : 0;
falsyNum = falsyBool ? 1 : 0;
truthyNum = +truthyBool;
falsyNum = +falsyBool;
--enable-precise-memory-info
flag.
Test case name | Result |
---|---|
If statement | |
Ternary | |
Unary |
Test name | Executions per second |
---|---|
If statement | 103361800.0 Ops/sec |
Ternary | 86083152.0 Ops/sec |
Unary | 24825676.0 Ops/sec |
Let's break down the provided JSON and explain what's being tested in the Benchmark.
Benchmark Definition
The benchmark is testing the conversion of binary numbers to integers using three different approaches:
+
) to convert the input boolean values to integers.Options Compared
The benchmark is comparing the performance of these three approaches on a variety of inputs:
truthyBool
and falsyBool
: These are two boolean variables set to true
and false
, respectively.truthyNum
and falsyNum
: These are two integer variables initialized with values -1, which will be updated based on the input boolean values.Pros and Cons of Each Approach
Library
There is no explicit library mentioned in the benchmark definition. However, it's likely that the benchmarks are running on a JavaScript engine that provides native support for these operators and data types.
Special JS Feature/Syntax
None of the test cases use special JavaScript features or syntax beyond the standard if-else statements and ternary operator. The use of unary plus (+
) to convert boolean values to integers is a common idiom in JavaScript, but it's not a feature specific to that language.
Alternatives
Other alternatives for converting binary numbers to integers could include:
&
, |
, ^
) to perform the conversion.It's worth noting that the specific use case and requirements would influence the choice of approach. In general, for most cases, the ternary operator approach is a good compromise between conciseness and readability.