Quick demo for React Reducer usage.
You do not use the React.useState() function anymore.<\/p>\n\n\n\n
import React from 'react'\nexport function counterReducer(state,action) {\n let newState = {...state};\n if(action.type==='INCREMENT'){\n newState.count = state.count+1;\n }\n if(action.type==='DECREMENT'){\n newState.count = state.count-1;\n }\n if(action.type==='RESET'){\n newState.count = 0;\n }\n return newState;\n}\n\nfunction App() {\n const [state, dispatch]= React.useReducer(counterReducer,{count:0,tag:'test'});\n return (\n <div id=\"app\">\n <h1>The (Final?) Counter<\/h1>\n <p id=\"actions\">\n <button onClick={()=>dispatch({type:'INCREMENT'})}>Increment<\/button>\n <button onClick={()=>dispatch({type:'DECREMENT'})}>Decrement<\/button>\n <button onClick={()=>dispatch({type:'RESET'})}>Reset<\/button>\n <\/p>\n <p id=\"counter\">{state.count} ({state.tag})<\/p>\n <\/div>\n );\n}\n\nexport default App;\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"Quick demo for React Reducer usage.You do not use the React.useState() function anymore.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[20],"tags":[22],"class_list":["post-36","post","type-post","status-publish","format-standard","hentry","category-react","tag-react"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/berlin.nandrin.net\/index.php\/wp-json\/wp\/v2\/posts\/36","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/berlin.nandrin.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/berlin.nandrin.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/berlin.nandrin.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/berlin.nandrin.net\/index.php\/wp-json\/wp\/v2\/comments?post=36"}],"version-history":[{"count":2,"href":"https:\/\/berlin.nandrin.net\/index.php\/wp-json\/wp\/v2\/posts\/36\/revisions"}],"predecessor-version":[{"id":39,"href":"https:\/\/berlin.nandrin.net\/index.php\/wp-json\/wp\/v2\/posts\/36\/revisions\/39"}],"wp:attachment":[{"href":"https:\/\/berlin.nandrin.net\/index.php\/wp-json\/wp\/v2\/media?parent=36"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/berlin.nandrin.net\/index.php\/wp-json\/wp\/v2\/categories?post=36"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/berlin.nandrin.net\/index.php\/wp-json\/wp\/v2\/tags?post=36"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}