How can i Check JavascriptExecutor in loop?

Question

I want to exit loop if the string give an error, I cant check if it's null.

The loop take 2 scripts and take all the cells, in the end the compiler give an error.

How i can exit before calculating the last string(the error time) ?

Thanks

String script3 = "return document.getElementsByTagName('g')[" + f9 + "].textContent";
n = (String) ((JavascriptExecutor) driver).executeScript(script3, hiddenDiv);

n takes all the tags(g), at the end it's give an error not null, so i cant stop the loop.

I want to stop the loop before the error.

I do this to count the tags.

score 1 · Answer 1 · answered Jul 03 '16 at 12:37

1

You can get all the g tags using findElements method

List<WebElement> gTags = driver.findElements(By.tagName("g"));

And to get the number of g tags

int size = gTags.size();

answered Jul 03 '16 at 12:37

Guy

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But, the g tags inside hidden element. – Mind5 Jul 03 '16 at 13:05

Leon Barkan · Accepted Answer · 2016-07-03T12:21:38.883

0

use try catch for catching the error and breaking the loop

for(...)
{
   try
   {
      //your javascript code HERE
   }
   catch(Exception ex)
   {
      string exMessage = getMessage();
      break;
   }
}

edited Jul 03 '16 at 12:21

answered Jul 03 '16 at 11:08

Leon Barkan

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what we write inside the catch ? – Mind5 Jul 03 '16 at 11:17
from ex you can get all the information about the exception – Leon Barkan Jul 03 '16 at 12:10

score 0 · Answer 3 · answered Jul 03 '16 at 21:58

There are several ways to do this. I would do it like the below. Basically you use Javascript to grab all the g tags, loop through them collecting their .textContent, and then return that List to your Java code. You can then loop through the List in Java and do whatever.

String script3 = "var strings = []; var g = document.getElementsByTagName('g'); for (var i = 0; i < g.length; i++) { strings.push(g[i].textContent); } return strings;";
List<String> s = (List<String>) ((JavascriptExecutor) driver).executeScript(script3);
System.out.println(s);

How can i Check JavascriptExecutor in loop?

3 Answers3