var string = "Hello world!";
var regex = /hello/gi;
regex.test(string);
string.toLowerCase().includes(("Hello").toLowerCase());
--enable-precise-memory-info
flag.
Test case name | Result |
---|---|
RegEx.test | |
String.includes |
Test name | Executions per second |
---|---|
RegEx.test | 5170867.5 Ops/sec |
String.includes | 14014126.0 Ops/sec |
Let's break down what's being tested in the provided JSON benchmark.
The benchmark is comparing two approaches to test if the string "Hello" is present anywhere in another given string:
/hello/gi
is used, which:h
and e
and l
are literal characters.g
flag makes the search global, meaning it will find all occurrences of the pattern, not just the first one.i
flag makes the search case-insensitive.Comparison Options
The benchmark compares these two approaches:
Pros and Cons of Each Approach:
Library and Purpose:
There are no libraries used in this benchmark. Both methods rely on built-in JavaScript functionality.
Special JS Feature or Syntax:
None mentioned.
Other Alternatives:
For simple string searches, other approaches could include:
These alternatives may offer different trade-offs between performance, flexibility, and readability, depending on the specific use case.
The benchmark can be useful for developers to compare the performance of these approaches and choose the best fit for their project's requirements.