this.numberA = Math.random() > .5 || 0;
this.numberB = !this.numberA;
return Math.min(this.numberA, this.numberB);
if (this.numberA < this.numberB)
return this.numberA;
else
return this.numberB;
return (this.numberA < this.numberB) ? this.numberA : this.numberB
return this.numberA || this.numberB
--enable-precise-memory-info
flag.
Test case name | Result |
---|---|
Math.min | |
if | |
ternary | |
logical or |
Test name | Executions per second |
---|---|
Math.min | 24825534.0 Ops/sec |
if | 14729632.0 Ops/sec |
ternary | 14707881.0 Ops/sec |
logical or | 21442940.0 Ops/sec |
Let's dive into the explanation of the provided JSON benchmark definition.
Benchmark Overview
The benchmark measures the performance difference between four different approaches to find the smaller of two numbers: Math.min()
, if/else
statement, ternary operator (? :
), and logical OR operator (||
).
Comparison of Approaches
? :
): The ternary operator is a shorthand way of writing conditional statements. In this case, it's used as this.numberA < this.numberB ? this.numberA : this.numberB;
. While concise, the overhead of parsing and executing an expression might be higher compared to a simple if-else statement.||
): This approach uses the logical OR operator to find the smaller number. this.numberA || this.numberB
will return this.numberA
if it's not zero, and this.numberB
otherwise.Pros and Cons of Each Approach
? :
): Pros - concise, easy to read; Cons - overhead of parsing and executing an expression.||
): Pros - simple, efficient; Cons - might not be immediately familiar to all developers.Library Used
The benchmark uses no external libraries, relying solely on built-in JavaScript features.
Special JS Features or Syntax
None mentioned in the provided information. However, it's worth noting that some browsers have additional features or syntax that might impact performance, such as async/await, generators, or Web Workers.
Alternatives
If you're interested in exploring alternative approaches, consider:
Math.min()
with initial values.Keep in mind that these alternatives might not be directly applicable or comparable to this specific benchmark.
In conclusion, this benchmark provides an interesting comparison of four simple approaches to finding the smaller of two numbers, highlighting the trade-offs between built-in functions, if-else statements, ternary operators, and logical OR operators.