var string = "Hello world!";
var regex = /Hello/;
regex.test(string);
string.includes("Hello");
--enable-precise-memory-info
flag.
Test case name | Result |
---|---|
RegEx | |
Includes |
Test name | Executions per second |
---|---|
RegEx | 25031942.0 Ops/sec |
Includes | 41551736.0 Ops/sec |
Let's break down the benchmark and its results.
What is tested?
The provided JSON represents two individual test cases: RegEx
and Includes
. The test cases compare the performance of two approaches to search for the string "Hello" in a given string:
includes
method of JavaScript strings to search for the substring "Hello".Options compared
The two options being compared are:
Pros and Cons:
Library used:
None explicitly mentioned, but it's assumed that JavaScript provides the built-in includes
method.
Special JS feature or syntax:
The benchmark uses JavaScript strings with Unicode characters. No special features or syntax are required for this benchmark.
Other alternatives:
If you're looking for alternative methods to search for a substring in a string, some options include:
includes
, but returns the index of the first occurrence, or -1 if not found.In summary, this benchmark compares two widely used methods for substring matching in JavaScript strings. Regular Expressions provide more flexibility but can be slower, while String.includes
is faster but limited to simple matches.