User Agent Data Test (v6)

Revision 6 of this benchmark created on

Setup

function includesUserAgentDataBrandOld(brand) {
    try {
      let result = false;

      (() => {
      	if(navigator.userAgentData) {
          // @ts-ignore: AUTO-IGNORING ALL ERRORS
          for (let i = 0; i < navigator?.userAgentData.brands.length; i++) {
            // @ts-ignore: AUTO-IGNORING ALL ERRORS
            if (navigator.userAgentData.brands[i].brand == brand) {
              result = true;
              break;
            }
          }
          }
      })();
      return result;
    } catch ($$e_2) {
      return false;
    }
  }
  
function includesUserAgentDataBrandNew(brand) {
      return window.navigator.userAgentData?.brands.some(
        (b) => b.brand === brand
      ) ?? false;
  }
  
  function includesUserAgentDataBrandShortCircuit(brand) {
      return navigator.userAgentData && window.navigator.userAgentData.brands.some(
        (b) => b.brand === brand
      );
  }

Test runner

Ready to run.

Testing in
TestOps/sec
Before
includesUserAgentDataBrandOld("Foo")
ready
After
includesUserAgentDataBrandNew("Foo")
ready
Short Circuit
includesUserAgentDataBrandShortCircuit("Foo")
ready

Revisions

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