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Array unshift vs prepend vs concat (v28)

Revision 28 of this benchmark created on January 7, 2015

Test runner

Ready to run.

Testing in
Test		Ops/sec
Concat	`a = [1, 2, 3, 4]; [0].concat(a);`	ready
Prepend function	`a = [1, 2, 3, 4]; a.unshift(0)`	ready
Unshift without mutation	`a = [1, 2, 3, 4]; a.slice(0).unshift(0);`	ready

Revisions

You can edit these tests or add more tests to this page by appending /edit to the URL.

Revision 1: published on June 1, 2011
Revision 2: published on January 13, 2012
Revision 3: published on January 15, 2012
Revision 4: published on January 24, 2012
Revision 5: published by aranor on January 25, 2012
Revision 6: published by James on December 19, 2012
Revision 7: published on December 20, 2012
Revision 8: published by vincent piel on April 29, 2013
Revision 9: published on May 12, 2013
Revision 10: published on September 8, 2013
Revision 11: published by Juho Teperi on October 18, 2013
Revision 12: published by Robin Cloutman on January 23, 2014
Revision 13: published on June 22, 2014
Revision 14: published on July 31, 2014
Revision 15: published on July 31, 2014
Revision 16: published on August 7, 2014
Revision 18: published on August 12, 2014
Revision 20: published on September 8, 2014
Revision 21: published by Al on September 9, 2014
Revision 22: published on October 4, 2014
Revision 23: published on November 23, 2014
Revision 24: published on November 29, 2014
Revision 25: published on November 29, 2014
Revision 28: published on January 7, 2015
Revision 30: published on February 22, 2015
Revision 31: published by Mark Caudill on February 22, 2015