Run results for: replaceAll no regex vs replace with regex

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:145.0) Gecko/20100101 Firefox/145.0

Browser: Firefox 145

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 7 months ago

replaceAll no regex

787K/s

replace with regex

531K/s

View exact numbers

Test name	Executions per second
✓ replaceAll no regex	786,809 Ops/sec
replace with regex	530,528 Ops/sec

Script Preparation code:

const text = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed sagittis urna luctus massa tincidunt pharetra quis in dolor. Integer tincidunt cursus mi, nec sagittis metus finibus in. Suspendisse vitae nulla quis turpis egestas tempus id sit amet tortor. Donec ut turpis a eros gravida ultricies. Duis gravida gravida lorem, condimentum lobortis sapien sodales sit amet. Duis sem neque, tincidunt et mauris pharetra, condimentum scelerisque velit. Quisque eu dui at eros tempor interdum suscipit eget urna. Cras ultrices dictum mi id aliquet. Nam quis nisl quam. Phasellus vulputate eu elit ut rutrum. Sed tempus eros consequat ante congue, et tempus velit sagittis. Maecenas aliquam imperdiet velit et luctus."

Tests:

replaceAll no regex
text.replaceAll("a", "b").replaceAll("c", "d").replaceAll("f", "g")
replace with regex
text.replace(/a/g, "b").replace(/c/g, "d").replace(/f/g, "g")