Benchmark: RegExp constructor vs literal vs premade, constructing in function

Script Preparation code:

function getReConstructor() {
  return new RegExp('^[0-9a-fA-F]{24}$');
}
function getReFactory() {
  return RegExp('^[0-9a-fA-F]{24}$');
}
function getReLiteral() {
  return /^[0-9a-fA-F]{24}$/;
}
var premadeLiteral = /^[0-9a-fA-F]{24}$/;
function getRePremadeLiteral() {
  return premadeLiteral;
}

Tests:

new RegExp()
getReConstructor().test('132abc67219f019afe12901a')
RegExp() factory
getReFactory().test('132abc67219f019afe12901a')
Literal
getReLiteral().test('132abc67219f019afe12901a')
Literal premade
getRePremadeLiteral().test('132abc67219f019afe12901a')

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
new RegExp()
RegExp() factory
Literal
Literal premade

Fastest: N/A

Slowest: N/A

Latest run results:

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RegExp constructor vs literal vs premade, constructing in function (version: 0)

Testing performance when using a new RegExp object vs a literal regex

Comparing performance of: new RegExp() vs RegExp() factory vs Literal vs Literal premade

Created: 6 years ago by: Guest

Jump to the latest result

new RegExp()

RegExp() factory

Literal

Literal premade

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results