On 22 Apr 2018, at 03:55, Chen Bing <eda...@gmail.com> wrote: > https://reagent-project.github.io/ > Example "BMI calculator", > Slider initialized with assoc atom(bmi-data),it's a copy of > atom(bmi-data) > ,why atom (bmi-data) change will repaint Slider?
The component being rendered is bmi-component. The component calls calc-bmi, which dereferences mmi-data: @bmi-data is a deref. bmi-data is a reagent atom and reagent atoms are set up so that components referring to the atom re-render when the atom changes, as noted earlier on the page you linked to: > The easiest way to manage state in Reagent is to use Reagent’s own version of > atom. It works exactly like the one in clojure.core, except that it keeps > track of every time it is deref’ed. Any component that uses an atom is > automagically re-rendered when its value changes. Alan -- Note that posts from new members are moderated - please be patient with your first post. --- You received this message because you are subscribed to the Google Groups "ClojureScript" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojurescript+unsubscr...@googlegroups.com. To post to this group, send email to clojurescript@googlegroups.com. Visit this group at https://groups.google.com/group/clojurescript.
