A rather geeky/technical weblog, est. 2001, by Bramus
<calc-input>, a custom input element that accepts mathematical formulas
Continuing my streak of small form-related Custom Elements (like <rich-input>), I built <calc-input>. It’s a custom input element that accepts mathematical formulas — such as 2 + 3 or (2 + 3) * 4 — and automatically toggles between showing the formula on focus and the calculated result on blur.
Going beyond Binary Conditions for CSS Calculations, Ana Tudor takes it to a whole new level by introducing the logical operations (and, or, nand, nor, not, and xor) to CSS — all built on top of calc() Very often, while using switch variables, I wish I could perform logical operations on them. We don’t have …
Continue reading “Logical Operations with CSS Variables CSS Custom Properties“
In CSS we have feature queries (@supports) available to create if–else-like structs. What if we could extend our means of using conditions in CSS? Roman Komarov provides us with a clever technique – which involves using CSS Custom Properties, calc(), and some binary logic – to implementing this type of conditions on a per CSS …
As mentioned before, CSS calc() was about to come to Chromium/Chrome (Webkit). Since about a week ago, the first part of the implementation has landed into the Canary builds: Adds calc expressions to CSSPrimitiveValue. This enables simple (ie no mixing of percents with numbers/lengths) expressions to be evaluated on most properties. No mixing yet, but …
Three days ago this was committed: This is the parsing stage of calc. The expressions are evaluated and expression trees are generated. CSS values are not created yet – that will happen in a subsequent commit. Looking forward to the next commits, as this feature will make things — such as flexible columns with a …