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January 4, 2018 04:55
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| <body> | |
| <script> | |
| /* hyperapp 1.0.1 */ | |
| !function(e,n){"object"==typeof exports&&"undefined"!=typeof module?n(exports):"function"==typeof define&&define.amd||n(e.hyperapp={})}(this,function(e){"use strict";e.h=function(e,n){for(var r,o=[],t=[],i=arguments.length;i-- >2;)t.push(arguments[i]);for(;t.length;)if(Array.isArray(r=t.pop()))for(i=r.length;i--;)t.push(r[i]);else null==r||!0===r||!1===r||o.push(r);return"string"==typeof e?{name:e,props:n||{},children:o}:e(n||{},o)},e.app=function(e,n,r,o){function t(e,n){return e&&{name:e.nodeName.toLowerCase(),props:{},children:n.call(e.childNodes,function(e){return 3===e.nodeType?e.nodeValue:t(e,n)})}}function i(t){for(y=!y,t=r(e,n),o&&!y&&(N=v(o,N,w,w=t));t=g.pop();)t()}function l(){y||(y=!y,setTimeout(i))}function u(e,n){var r={};for(var o in e)r[o]=e[o];for(var o in n)r[o]=n[o];return r}function f(e,n,r,o){return e.length?(o[e[0]]=1<e.length?f(e.slice(1),n,r[e[0]],{}):n,u(r,o)):n}function c(e,n){for(var r=0;r<e.length;r++)n=n[e[r]];return n}function p(n,r,o){for(var t in o)"function"==typeof o[t]?function(t,i){o[t]=function(t){return r=c(n,e),"function"==typeof(t=i(t))&&(t=t(r,o)),t&&t!==r&&!t.then&&l(e=f(n,u(r,t),e,{})),t}}(t,o[t]):p(n.concat(t),r[t]=r[t]||{},o[t]=u(o[t]))}function s(e){return e&&e.props?e.props.key:null}function a(e,n,r,o){if("key"===n);else if("style"===n)for(var t in u(o,r))e[n][t]=null==r||null==r[t]?"":r[t];else{try{e[n]=null==r?"":r}catch(e){}"function"!=typeof r&&(null==r||!1===r?e.removeAttribute(n):e.setAttribute(n,r))}}function d(e,n){var r="string"==typeof e||"number"==typeof e?document.createTextNode(e):(n=n||"svg"===e.name)?document.createElementNS("http://www.w3.org/2000/svg",e.name):document.createElement(e.name);if(e.props){e.props.oncreate&&g.push(function(){e.props.oncreate(r)});for(var o=0;o<e.children.length;o++)r.appendChild(d(e.children[o],n));for(var t in e.props)a(r,t,e.props[t])}return r}function h(e,n,r){if(r=n.props){for(var o=0;o<n.children.length;o++)h(e.childNodes[o],n.children[o]);r.ondestroy&&r.ondestroy(e)}return e}function m(e,n,r,o){function t(){e.removeChild(h(n,r))}r.props&&(o=r.props.onremove)?o(n,t):t()}function v(e,n,r,o,t,i){if(o===r);else if(null==r)n=e.insertBefore(d(o,t),n);else if(o.name&&o.name===r.name){!function(e,n,r){for(var o in u(n,r))r[o]!==("value"===o||"checked"===o?e[o]:n[o])&&a(e,o,r[o],n[o]);r.onupdate&&g.push(function(){r.onupdate(e,n)})}(n,r.props,o.props);for(var l=[],f={},c={},p=0;p<r.children.length;p++)l[p]=n.childNodes[p],null!=(w=s(y=r.children[p]))&&(f[w]=[l[p],y]);p=0;for(var h=0;h<o.children.length;){var y=r.children[p],N=o.children[h],w=s(y),b=s(N);if(c[w])p++;else if(null==b)null==w&&(v(n,l[p],y,N,t),h++),p++;else{var k=f[b]||[];w===b?(v(n,k[0],k[1],N,t),p++):k[0]?v(n,n.insertBefore(k[0],l[p]),k[1],N,t):v(n,l[p],null,N,t),h++,c[b]=N}}for(;p<r.children.length;)null==s(y=r.children[p])&&m(n,l[p],y),p++;for(var p in f)c[f[p][1].props.key]||m(n,f[p][0],f[p][1])}else o.name===r.name?n.nodeValue=o:(n=e.insertBefore(d(o,t),i=n),m(e,i,r));return n}var y,g=[],N=o&&o.children[0],w=t(N,[].map);return l(p([],e=u(e),n=u(n))),n}}); | |
| const { h, app } = hyperapp | |
| // ========================================================================== | |
| // HTML Elements. | |
| // ========================================================================== | |
| const vnode = tag => (p, c) => typeof p === "object" && !Array.isArray(p) ? h(tag, p, c) : h(tag, {}, p) | |
| const main = (p, c) => vnode('main' )(p, c) | |
| const h1 = (p, c) => vnode('h1' )(p, c) | |
| const button = (p, c) => vnode('button')(p, c) | |
| // ========================================================================== | |
| // State. | |
| // ========================================================================== | |
| const state = { | |
| count: 0 | |
| } | |
| // ========================================================================== | |
| // Actions. | |
| // ========================================================================== | |
| const actions = { | |
| down: () => state => ({ count: state.count - 1 }), | |
| up: () => state => ({ count: state.count + 1 }) | |
| } | |
| // ========================================================================== | |
| // View. | |
| // ========================================================================== | |
| const view = (state, actions) => | |
| main({}, [ | |
| h1({}, state.count), | |
| button({ onclick: actions.down, disabled: state.count <= 0 }, '-'), | |
| button({ onclick: actions.up }, '+') | |
| ]) | |
| // ========================================================================== | |
| // Initialization. | |
| // ========================================================================== | |
| app(state, actions, view, document.body) | |
| </script> | |
| </body> |
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