Benchmark: testtest132123asdasda

Script Preparation code:

 var getClass = {}.toString,
      hasProperty = {}.hasOwnProperty,
      expression = /Kit/g;
  
  function Test() {}
  
  // Checks the internal [[Class]] name of the object.
  
  
  function isFunctionA(object) {
   return object && getClass.call(object) == '[object Function]';
  }
  
  // Partial duck-typing implementation by Garrett Smith.
  
  
  function isFunctionB(object) {
   if (typeof object != 'function') return false;
   var parent = object.constructor && object.constructor.prototype;
   return parent && hasProperty.call(parent, 'call');
  }
  
  // Pure duck-typing implementation taken from Underscore.js.
  
  
  function isFunctionC(object) {
   return !!(object && object.constructor && object.call && object.apply);
  }

Tests:

B
isFunctionB(Test); isFunctionB(getClass); isFunctionB(hasProperty); !isFunctionB(expression);
C
isFunctionC(Test); isFunctionC(getClass); isFunctionC(hasProperty); !isFunctionC(expression);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
B
C

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 6 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36

Browser/OS: Chrome 67 on Mac OS X 10.13.6

View result in a separate tab

Test name	Executions per second
B	1196326.0 Ops/sec
C	1713907.0 Ops/sec

testtest132123asdasda (version: 0)

Comparing performance of: B vs C

Created: 6 years ago by: Guest

Jump to the latest result

B

C

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A