GeezerVison

                                                                            improvement significant      p.value
 url/url-searchparams-iteration.js n=1000000 method="forEach"                 1862.07 %         *** 8.733519e-13
 url/url-searchparams-iteration.js n=1000000 method="iterator"                 438.64 %         *** 5.047367e-08
 url/url-searchparams-parse.js n=100000 type="encodelast"                      -13.24 %         *** 4.168480e-05
 url/url-searchparams-parse.js n=100000 type="encodemany"                      -11.09 %         *** 5.541885e-04
 url/url-searchparams-parse.js n=100000 type="manypairs"                       -27.59 %         *** 2.321083e-06
 url/url-searchparams-parse.js n=100000 type="multicharsep"                    -50.31 %         *** 5.783889e-08
 url/url-searchparams-parse.js n=100000 type="multivalue"                      -17.29 %           * 2.935815e-02
 url/url-searchparams-parse.js n=100000 type="multivaluemany"                  -14.88 %         *** 5.745400e-05
 url/url-searchparams-parse.js n=100000 type="noencode"                        -18.15 %         *** 1.963056e-06
 url/url-searchparams-read.js n=1000000 param="nonexistent" method="get"        61.67 %         *** 1.116965e-10
 url/url-searchparams-read.js n=1000000 param="nonexistent" method="getAll"     55.08 %         *** 3.448118e-06
 url/url-searchparams-read.js n=1000000 param="nonexistent" method="has"        44.27 %         *** 3.973790e-08
 url/url-searchparams-read.js n=1000000 param="one" method="get"                88.68 %         *** 1.517226e-12
 url/url-searchparams-read.js n=1000000 param="one" method="getAll"             38.12 %         *** 2.725035e-09
 url/url-searchparams-read.js n=1000000 param="one" method="has"                43.55 %           * 4.359301e-02
 url/url-searchparams-read.js n=1000000 param="three" method="get"              67.10 %         *** 1.838817e-06
 url/url-searchparams-read.js n=1000000 param="three" method="getAll"           20.47 %         *** 3.453068e-04
 url/url-searchparams-read.js n=1000000 param="three" method="has"              37.42 %         *** 2.080444e-14
 url/url-searchparams-read.js n=1000000 param="two" method="get"                74.53 %         *** 4.785676e-06
 url/url-searchparams-read.js n=1000000 param="two" method="getAll"             27.61 %         *** 2.396046e-10
 url/url-searchparams-read.js n=1000000 param="two" method="has"                42.86 %         *** 1.950919e-05
 url/url-searchparams-stringifier.js n=100000 type="encodelast"                -24.12 %         *** 2.144126e-06
 url/url-searchparams-stringifier.js n=100000 type="encodemany"                -21.01 %           * 1.564314e-02
 url/url-searchparams-stringifier.js n=100000 type="manypairs"                 -50.85 %         *** 1.451279e-07
 url/url-searchparams-stringifier.js n=100000 type="multicharsep"              -23.25 %         *** 1.969569e-07
 url/url-searchparams-stringifier.js n=100000 type="multivalue"                -21.85 %         *** 6.488499e-08
 url/url-searchparams-stringifier.js n=100000 type="multivaluemany"            -20.78 %         *** 3.153256e-09
 url/url-searchparams-stringifier.js n=100000 type="noencode"                  -23.54 %         *** 3.425512e-07

> new url.URLSearchParams('=&=&=&=&=&=&=&=&=')
URLSearchParams {
  '' => '',
  '' => '',
  '' => '',
  '' => '',
  '' => '',
  '' => '',
  '' => '',
  '' => '',
  '' => '' }
> new url.URLSearchParams('=&=&=&=&=&=&=&=&=').entries()
URLSearchParamsIterator {
  [ '', '' ],
  [ '', '' ],
  [ '', '' ],
  [ '', '' ],
  [ '', '' ],
  [ '', '' ],
  [ '', '' ],
  [ '', '' ],
  [ '', '' ] }