Know what makes your browser pant
I figure we needed a definitive reference for what work is triggered by changing various CSS properties. It's something I get asked about often enough by developers, and while we can do tests with DevTools, I have both the time and inclination to shortcut that for everyone. I'm nice like that. — Paul Lewis Show archive.org snapshot
Related cards:
What we know about PDFKit
What PDFKit is
- PDFKit converts a web page to a PDF document. It uses a Webkit engine under the hood.
- For you as a web developer this means you can keep using the technology you are familar wit...
Using before(:context) / before(:all) in RSpec will cause you lots of trouble unless you know what you are doing
TL;DR Avoid before(:context) (formerly before(:all)), use before(:example) (formerly before(:each)) instead.
If you do use before(:context), you need to know what you are doing and take care of any cleanup yourself.
Why?
...
The TCF 2.0 (Tranparency and Consent Framework) standard, and what you should know about it
The Interactive Advertising Bureau (IAB) is a European marketing association which has introduced a standard how advertising can be served to users in line with the General Data Protection Regulation (GDPR). This standard ...
Why your browser loses cookies when following hyperlinks from an Excel spreadsheet or Word document
Microsoft Office pre-fetches hyperlinks using an internal DLL (which doesn't know about your cookies), follows all redire...
JavaScript: How to log execution times to your browser console
If you are trying to inspect timings in JavaScript, you can use console.time and console.timeEnd which will write to your browser console.
Example:
console.time('lengthy calculation');
lengthyCalculation();
console.timeEnd('len...
Browsera - Automated Cross Browser Web Application Testing Service
Browsera automatically detects cross-browser layout problems and scripting errors on your website.
What you need to know about Angular SEO
Search engines, such as Google and Bing are engineered to crawl static web pages, not javascript-heavy, client-side apps. This is typical of a search engine which does not render javascript when the search bot is crawling over web pages.
This...
String#indent: Know your definitions!
String#indent is not a standard Ruby method. When you use it, be sure to know where this method comes from. Many Gems shamelessly define this method for internal usage, and you'll never know when it may be removed (since it's usually not part of...
BrowserStack has browser plugins for local testing
Local testing allows you to test your private and internal servers using the BrowserStack cloud, which has support for firewalls, proxies and Active Directory.
Know your Haml comments
There are two distinct ways of commenting Haml markup: HTML and Ruby.
HTML comments
This will create an HTML comment that will be sent to the client (aka browser):
/= link_to 'Example', 'www.example.com'
This produces the follo...