Локальное кеширование AJAX запросов https://www.sitepoint.com/cache-fetched-ajax-requests/
Sitepoint
Cache Fetched AJAX Requests Locally: Wrapping the Fetch API — SitePoint
Peter Bengtsson walks through building a wrapper for the Fetch API, step-by-step, to cache fetched AJAX results and avoid repeated requests to the server.
Производительность маленьких модулей https://nolanlawson.com/2016/08/15/the-cost-of-small-modules/
Read the Tea Leaves
The cost of small modules
Update (30 Oct 2016): since I wrote this post, a bug was found in the benchmark which caused Rollup to appear slightly better than it would otherwise. However, the overall results are not substanti…
Как давать названия цветовым переменным в Sass
https://alexpate.uk/journal/naming-sass-color-variables/
https://alexpate.uk/journal/naming-sass-color-variables/
Перебор в Sass с помощью директив контроля
http://vanseodesign.com/css/sass-control-directives-part-2/
http://vanseodesign.com/css/sass-control-directives-part-2/
Vanseo Design
Loop Through Sass Code Using Control Directives
There are several Sass control directives, such as @each and @while, that let you loop through a block of code based on conditions you set.