How do you capture multiple lines of console output in Ruby? Here is one way to do it. This example comes from writing a test for multiple lines of output from a command-line tic-tac-toe game, where the board should print into the console on 5 differ...
The navigator.vibrate() interface will crash iPhones, so only use it after checking if the user's device supports it
array1 === array2 ? To compare arrays in JavaScript, don't assume you can check whether the contents of two JavaScript arrays are the same with === or == (the strict equality or equality operators). You can't. const array1 = [1, 2, 3]; const array2 =...
Depth and interactivity Well done parallax scrolling effects can add incredible depth and interactivity to a web page. This simple example uses a fixed background image. The site content is stacked on top and scrolling over it, while transparent <div...
AKA Why did my entire array change values inexplicably???
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