selenium - isElementPresent is very slow in case if element does not exist. -

i using below code check element on web page

private boolean iselementpresent(by by) { try {              driver.findelement(by);       return true;     } catch (nosuchelementexception e) {         return false;     }     catch (exception e)     {                return false;     }    } 

i need check in program if particular region appears in result below

iselementpresent(by.xpath(".//*[@id='header']"))); 

if present function completes if above not present run long.

could 1 please me in resolving issue check can performed quickly?

here missing somethings why waiting if there not element. findelement wait element implicitly specified time. need set time 0 in method.

iselementpresent(webdriver driver,by by)    {                  driver.manage().timeouts().implicitlywait(0, timeunit.seconds);                  try                  {                       driver.findelement(by);                      return true;                  }                  catch(nosuchelementexception e)                  {                      return false;                  }                                 {                     driver.manage().timeouts().implicitlywait(30, timeunit.seconds);                 }       } 

there 4 important things going on here. in order:

1.setting implicity_wait 0 webdriver not implicitly wait.

2.returning true when element found.

3.catching nosuchelementexception , returning false when discover element not present instead of stopping test exception.

4.setting implicitly_wait 30 after action complete webdriver implicitly wait in future.