What's wrong with defining JavaScript variables within if blocks? - Stack Overflow

You can use text-overflow to truncate a text using CSS but it does not fit fancy requirements.

Here is a hack for the special case where you want to truncat...

Seems like there's no way to do it in Capybara, unfortunately. But if you're running your tests with the Selenium driver (and probably other drivers that support JavaScript), you can hack it

I have a container of regular expressions. I'd like to analyze them to determine if it's possible to generate a string that matches more than 1 of them. Short of writing my own regex engine with this use case in mind, is there an easy way in C++ o...

Selenium has been the siren song that continually calls out to us. Unfortunately, in practice we’ve been unable to get Selenium to run reliably for real applications, on both developers machines and on the continuous integration server. This failu...

When is a global variable not a variable? When it is a property of the global object.

The basic idea is pretty simple: an element's height is accessible via the offsetHeight property, its drawn height via scrollHeight -- if they are not the same, the browser shows scrollbars.

var hasScrollbars = element.scrollHeight != ele...

After restarting an OpenStack host you may encouter problems with missing iptables rules (we're on an quite old release of OpenStack currently. Maybe this is fixed in newer releases). The nova chains appear in the iptables -L output but they're ...

Summary

• Use return to return from a method. return accepts a value that will be the return value of the method call.
• Use break to quit from a block and from the method that yielded to the block. break accepts a value that suppl...

This card describes how to pass an array with multiple element to a JavaScript function, so that the first array element becomes the first function argument, the second element becomes the second argument, etc.

Note how this is different from pas...

An end-to-end test (E2E test) is a script that remote-controls a web browser with tools like Selenium WebDriver. This card shows basic techniques for fixing a flaky E2E test suite that sometimes passes and sometimes fails.

Although many examples ...