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Select an Element with a Non-Empty Attribute


Short answer: [data-foo]:not([data-foo=""] { Longer answer (same conclusion, just an explanation on why we might need this): Say you have an element that you style with a special data-attribute: <div data-highlight="product"</div You want to target that element and do special things when...

Understanding Immutability in JavaScript


If you haven’t worked with immutability in JavaScript before, you might find it easy to confuse it with assigning a variable to a new value, or reassignment. While it’s possible to reassign variables and values declared using let or var, you'll begin to run into issues when you try that with...

Resizing Values in Steps in CSS


There actually is a steps() function in CSS, but it's only used for animation. You can't, for example, tell an element it's allowed to grow in height but only in steps of 10px. Maybe someday? I dunno. There would have to be some pretty clear use cases that something like background-repeat: space...

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