Admit it, you’ve done it. You have a bug somewhere in your web page and you add an alert to popup a useful message like “I am in the if statement” or “varName=Bob” to help you figure out what is wrong with your code. In IE9 we have an alternative: the Con... (more…)

Results are in for the 2019 State of JS survey. I’ve been digging through charts to see what I can see. Here are 7 insights that jumped off the page to me. (more…)

JavaScript’s this keyword is a source of confusion for many new and experienced developers alike. It can be frustrating if, for some reason, this doesn’t point to the context that was intended. This course will help you understand JavaScript’s this mechan... (more…)

Let’s be honest. A lot of JavaScript code sucks. Change that! (more…)

Are your JavaScript animations ruining page performance? Try creating this lightweight CSS and SVG animation instead, and keep your page load speed down. (more…)