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style="display:none"></ul></li></ul></li><li class="nav-item"><a class="nav-link"><span class="title">Animation</span> <span class="glyphicon glyphicon-menu-down"></span></a> <ul class="nav bd-sidenav level2" style="display:none"><li class="nav-item"><a href="/handbook/en/how-to/animation/transition" class="nav-link"><span class="title">Data Transition</span></a> <ul class="nav bd-sidenav level3" style="display:none"></ul></li></ul></li><li class="nav-item"><a class="nav-link"><span class="title">Interaction</span> <span class="glyphicon glyphicon-menu-down"></span></a> <ul class="nav bd-sidenav level2" style="display:none"><li class="nav-item"><a href="/handbook/en/how-to/interaction/drag" class="nav-link"><span class="title">Drag</span></a> <ul class="nav bd-sidenav level3" style="display:none"></ul></li><!----><li class="nav-item"><a href="/handbook/en/how-to/interaction/coarse-pointer" class="nav-link"><span class="title">Intelligent Pointer Snapping</span></a> <ul class="nav bd-sidenav level3" style="display:none"></ul></li></ul></li></ul></li><li class="nav-item"><div class="nav-link"><span class="title">Best Practices</span></div> <ul class="nav bd-sidenav level1"><!----><li class="nav-item"><a href="/handbook/en/best-practices/canvas-vs-svg" class="nav-link"><span class="title">Canvas vs. SVG</span></a> <ul class="nav bd-sidenav level2" style="display:none"></ul></li><li class="nav-item"><a href="/handbook/en/best-practices/aria" class="nav-link"><span class="title">Aria</span></a> <ul class="nav bd-sidenav level2" style="display:none"></ul></li></ul></li><li class="nav-item"><div class="nav-link"><span class="title">Edit Handbook</span></div> <ul class="nav bd-sidenav level1"><li class="nav-item"><a href="/handbook/en/meta/edit-guide" class="nav-link"><span class="title">Edit Guide</span></a> <ul class="nav bd-sidenav level2" style="display:none"></ul></li></ul></li></ul></div> <div class="open-sidebar"><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 5l7 7-7 7"></path></svg></div></div> <div class="bd-content col-sm-7 pl-sm-2 col-12"><div class="post-content content"><div><div class="post-inner"><!----> <div class="nuxt-content"><article><h1 id="asynchronous-data-loading-and-dynamic-update" tabindex="-1">Asynchronous Data Loading and Dynamic Update</h1> <h2 id="asynchronous-loading" tabindex="-1">Asynchronous Loading</h2> <p>Data in <a href="en/get-started">Getting Started Example</a> is directly updated by using <code>setOption</code>. But in many cases, the data needs to be filled by asynchronous loading frequently. <code>ECharts</code> can implement asynchronous loading in a simple way. You can get data asynchronously through a function such as jQuery and use <code>setOption</code> to fill in data and configs after the chart initialized.</p> <div class="md-code-block"><div class="nuxt-content-highlight"><pre class="language-js line-numbers"><code><span class="token keyword">var</span> myChart <span class="token operator">=</span> echarts<span class="token punctuation">.</span><span class="token function">init</span><span class="token punctuation">(</span>document<span class="token punctuation">.</span><span class="token function">getElementById</span><span class="token punctuation">(</span><span class="token string">'main'</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| |
| $<span class="token punctuation">.</span><span class="token function">get</span><span class="token punctuation">(</span><span class="token string">'data.json'</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">done</span><span class="token punctuation">(</span><span class="token keyword">function</span><span class="token punctuation">(</span><span class="token parameter">data</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> |
| <span class="token comment">// Structure of data:</span> |
| <span class="token comment">// {</span> |
| <span class="token comment">// categories: ["Shirt","Wool sweater","Chiffon shirt","Pants","High-heeled shoes","socks"],</span> |
| <span class="token comment">// values: [5, 20, 36, 10, 10, 20]</span> |
| <span class="token comment">// }</span> |
| myChart<span class="token punctuation">.</span><span class="token function">setOption</span><span class="token punctuation">(</span><span class="token punctuation">{</span> |
| <span class="token literal-property property">title</span><span class="token operator">:</span> <span class="token punctuation">{</span> |
| <span class="token literal-property property">text</span><span class="token operator">:</span> <span class="token string">'Asynchronous Loading Example'</span> |
| <span class="token punctuation">}</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">tooltip</span><span class="token operator">:</span> <span class="token punctuation">{</span><span class="token punctuation">}</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">legend</span><span class="token operator">:</span> <span class="token punctuation">{</span><span class="token punctuation">}</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">xAxis</span><span class="token operator">:</span> <span class="token punctuation">{</span> |
| <span class="token literal-property property">data</span><span class="token operator">:</span> data<span class="token punctuation">.</span>categories |
| <span class="token punctuation">}</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">yAxis</span><span class="token operator">:</span> <span class="token punctuation">{</span><span class="token punctuation">}</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">series</span><span class="token operator">:</span> <span class="token punctuation">[</span> |
| <span class="token punctuation">{</span> |
| <span class="token literal-property property">name</span><span class="token operator">:</span> <span class="token string">'Sales'</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">type</span><span class="token operator">:</span> <span class="token string">'bar'</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">data</span><span class="token operator">:</span> data<span class="token punctuation">.</span>values |
| <span class="token punctuation">}</span> |
| <span class="token punctuation">]</span> |
| <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span></code></pre></div> <!----> <div class="clipboard" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 5H6a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2v-1M8 5a2 2 0 002 2h2a2 2 0 002-2M8 5a2 2 0 012-2h2a2 2 0 012 2m0 0h2a2 2 0 012 2v3m2 4H10m0 0l3-3m-3 3l3 3" data-v-479657ca></path></svg></svg></div></div> <p>Or display empty axes with all styles defined before fill in the data:</p> <div class="md-code-block"><div class="nuxt-content-highlight"><pre class="language-js line-numbers"><code><span class="token keyword">var</span> myChart <span class="token operator">=</span> echarts<span class="token punctuation">.</span><span class="token function">init</span><span class="token punctuation">(</span>document<span class="token punctuation">.</span><span class="token function">getElementById</span><span class="token punctuation">(</span><span class="token string">'main'</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token comment">// Show title, legends and empty axes</span> |
| myChart<span class="token punctuation">.</span><span class="token function">setOption</span><span class="token punctuation">(</span><span class="token punctuation">{</span> |
| <span class="token literal-property property">title</span><span class="token operator">:</span> <span class="token punctuation">{</span> |
| <span class="token literal-property property">text</span><span class="token operator">:</span> <span class="token string">'Asynchronous Loading Example'</span> |
| <span class="token punctuation">}</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">tooltip</span><span class="token operator">:</span> <span class="token punctuation">{</span><span class="token punctuation">}</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">legend</span><span class="token operator">:</span> <span class="token punctuation">{</span> |
| <span class="token literal-property property">data</span><span class="token operator">:</span> <span class="token punctuation">[</span><span class="token string">'Sales'</span><span class="token punctuation">]</span> |
| <span class="token punctuation">}</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">xAxis</span><span class="token operator">:</span> <span class="token punctuation">{</span> |
| <span class="token literal-property property">data</span><span class="token operator">:</span> <span class="token punctuation">[</span><span class="token punctuation">]</span> |
| <span class="token punctuation">}</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">yAxis</span><span class="token operator">:</span> <span class="token punctuation">{</span><span class="token punctuation">}</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">series</span><span class="token operator">:</span> <span class="token punctuation">[</span> |
| <span class="token punctuation">{</span> |
| <span class="token literal-property property">name</span><span class="token operator">:</span> <span class="token string">'Sales'</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">type</span><span class="token operator">:</span> <span class="token string">'bar'</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">data</span><span class="token operator">:</span> <span class="token punctuation">[</span><span class="token punctuation">]</span> |
| <span class="token punctuation">}</span> |
| <span class="token punctuation">]</span> |
| <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| |
| <span class="token comment">// Asynchronous Data Loading</span> |
| $<span class="token punctuation">.</span><span class="token function">get</span><span class="token punctuation">(</span><span class="token string">'data.json'</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">done</span><span class="token punctuation">(</span><span class="token keyword">function</span><span class="token punctuation">(</span><span class="token parameter">data</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> |
| <span class="token comment">// Fill in the data</span> |
| myChart<span class="token punctuation">.</span><span class="token function">setOption</span><span class="token punctuation">(</span><span class="token punctuation">{</span> |
| <span class="token literal-property property">xAxis</span><span class="token operator">:</span> <span class="token punctuation">{</span> |
| <span class="token literal-property property">data</span><span class="token operator">:</span> data<span class="token punctuation">.</span>categories |
| <span class="token punctuation">}</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">series</span><span class="token operator">:</span> <span class="token punctuation">[</span> |
| <span class="token punctuation">{</span> |
| <span class="token comment">// Find series by name</span> |
| <span class="token literal-property property">name</span><span class="token operator">:</span> <span class="token string">'Sales'</span><span class="token punctuation">,</span> |
| <span class="token literal-property property">data</span><span class="token operator">:</span> data<span class="token punctuation">.</span>data |
| <span class="token punctuation">}</span> |
| <span class="token punctuation">]</span> |
| <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span></code></pre></div> <!----> <div class="clipboard" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 5H6a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2v-1M8 5a2 2 0 002 2h2a2 2 0 002-2M8 5a2 2 0 012-2h2a2 2 0 012 2m0 0h2a2 2 0 012 2v3m2 4H10m0 0l3-3m-3 3l3 3" data-v-479657ca></path></svg></svg></div></div> <p>For example:</p> <p><iframe width="100%" height="350" src=""></iframe></p> <p>You need to use <code>name</code> to "navigate" ECharts when updating data. In the previous example, the chart can update normally depending on the order of series, but we recommend you to add the <code>name</code> data while updating data.</p> <h2 id="loading-animation" tabindex="-1">loading Animation</h2> <p>When it takes a long time to load the data, the user is facing the empty chart with only axes will wonder if there is a bug.</p> <p>ECharts have a simple loading animation by default. You can call <a href="https://echarts.apache.org//api.html#echartsInstance.showLoading">showLoading</a> to display. When the data loading was completed, call <a href="https://echarts.apache.org//api.html#echartsInstance.hideLoading">hideLoading</a> to hide the animation.</p> <div class="md-code-block"><div class="nuxt-content-highlight"><pre class="language-js line-numbers"><code>myChart<span class="token punctuation">.</span><span class="token function">showLoading</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| $<span class="token punctuation">.</span><span class="token function">get</span><span class="token punctuation">(</span><span class="token string">'data.json'</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">done</span><span class="token punctuation">(</span><span class="token keyword">function</span> <span class="token punctuation">(</span><span class="token parameter">data</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> |
| myChart<span class="token punctuation">.</span><span class="token function">hideLoading</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| myChart<span class="token punctuation">.</span><span class="token function">setOption</span><span class="token punctuation">(</span><span class="token operator">...</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span></code></pre></div> <!----> <div class="clipboard" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 5H6a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2v-1M8 5a2 2 0 002 2h2a2 2 0 002-2M8 5a2 2 0 012-2h2a2 2 0 012 2m0 0h2a2 2 0 012 2v3m2 4H10m0 0l3-3m-3 3l3 3" data-v-479657ca></path></svg></svg></div></div> <p>Here is the effect:</p> <p><iframe width="100%" height="350" src=""></iframe></p> <h2 id="dynamic-update" tabindex="-1">Dynamic Update</h2> <p>ECharts was driven by data, change in data will drive changes in the presentation of the chart. Therefore, It's surprisingly simple to implement a dynamic update.</p> <p>All data's updates were implemented by <a href="https://echarts.apache.org//api.html#echartsInstance.setOption">setOption</a>. You only need to fetch the data periodically. ECharts will find the difference between two groups of data to use the proper way to choose the animation.</p> <p>Check the following example.</p> <p><iframe width="100%" height="350" src=""></iframe></p></article></div></div> <div class="post-contributors"><h3><span class="inline-block align-middle">Contributors</span> <a target="_blank" href="https://github.com/apache/echarts-handbook/tree/master/contents/en/how-to/data/dynamic-data.md" title="Edit this Document" class="inline-block align-middle text-sm"><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-8 w-8 inline-block align-middle"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z"></path></svg> <span class="inline-block align-middle">Edit this page on GitHub</span></a></h3> <div class="post-contributors-list"><a href="https://github.com/yhoiseth" target="_blank" class="post-contributor"><img alt="yhoiseth" src="https://avatars.githubusercontent.com/yhoiseth?size=60" loading="lazy"> <span>yhoiseth</span></a><a href="https://github.com/pissang" target="_blank" class="post-contributor"><img alt="pissang" src="https://avatars.githubusercontent.com/pissang?size=60" loading="lazy"> <span>pissang</span></a><a href="https://github.com/balloon72" target="_blank" class="post-contributor"><img alt="balloon72" src="https://avatars.githubusercontent.com/balloon72?size=60" loading="lazy"> <span>balloon72</span></a></div></div></div></div></div></div> <link rel="stylesheet" href="//fastly.jsdelivr.net/npm/highlight.js@9.12.0/styles/github-gist.min.css"></div></div></div></div><script>window.__NUXT__=function(t,i,e,a,d,r,l,n,o,h,c,s,g,p,C,I,m,u,b,A,y,G,f,w,B,Z,v,R,x,S,X,W,L,k,E,Y,F,z,K,H,V,J,Q,O,D,P,T,M,N,j,U,_,q,$,tt,it,et,at){return{layout:"default",data:[{html:'<h1 id="asynchronous-data-loading-and-dynamic-update" tabindex="-1">Asynchronous Data Loading and Dynamic Update</h1>\n<h2 id="asynchronous-loading" tabindex="-1">Asynchronous Loading</h2>\n<p>Data in <a href="en/get-started">Getting Started Example</a> is directly updated by using <code>setOption</code>. But in many cases, the data needs to be filled by asynchronous loading frequently. <code>ECharts</code> can implement asynchronous loading in a simple way. You can get data asynchronously through a function such as jQuery and use <code>setOption</code> to fill in data and configs after the chart initialized.</p>\n<md-code-block lang="js" code="\'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\'" line-highlights="\'\'" />\n<p>Or display empty axes with all styles defined before fill in the data:</p>\n<md-code-block lang="js" code="\'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\'" line-highlights="\'\'" />\n<p>For example:</p>\n<p><md-example src="doc-example/tutorial-async"></md-example></p>\n<p>You need to use <code>name</code> to "navigate" ECharts when updating data. In the previous example, the chart can update normally depending on the order of series, but we recommend you to add the <code>name</code> data while updating data.</p>\n<h2 id="loading-animation" tabindex="-1">loading Animation</h2>\n<p>When it takes a long time to load the data, the user is facing the empty chart with only axes will wonder if there is a bug.</p>\n<p>ECharts have a simple loading animation by default. You can call <a href="https://echarts.apache.org//api.html#echartsInstance.showLoading">showLoading</a> to display. When the data loading was completed, call <a href="https://echarts.apache.org//api.html#echartsInstance.hideLoading">hideLoading</a> to hide the animation.</p>\n<md-code-block lang="js" code="\'bXlDaGFydC5zaG93TG9hZGluZygpOwokLmdldCgnZGF0YS5qc29uJykuZG9uZShmdW5jdGlvbiAoZGF0YSkgewogICAgbXlDaGFydC5oaWRlTG9hZGluZygpOwogICAgbXlDaGFydC5zZXRPcHRpb24oLi4uKTsKfSk7\'" line-highlights="\'\'" />\n<p>Here is the effect:</p>\n<p><md-example src="doc-example/tutorial-loading"></md-example></p>\n<h2 id="dynamic-update" tabindex="-1">Dynamic Update</h2>\n<p>ECharts was driven by data, change in data will drive changes in the presentation of the chart. Therefore, It\'s surprisingly simple to implement a dynamic update.</p>\n<p>All data\'s updates were implemented by <a href="https://echarts.apache.org//api.html#echartsInstance.setOption">setOption</a>. You only need to fetch the data periodically. ECharts will find the difference between two groups of data to use the proper way to choose the animation.</p>\n<p>Check the following example.</p>\n<p><md-example src="doc-example/tutorial-dynamic-data"></md-example></p>\n',postPath:"en/how-to/data/dynamic-data",title:"Dynamic Data - Data - How To Guides"}],fetch:{},error:null,state:{filled:!1,docVersion:"",ghVersion:"",visibleAffix:!1,homepage:{},adBlocked:!1,focusMode:!1,posts:{zh:[{title:"快速上手",dir:a},{title:"入门篇",dir:d,children:[{title:"获取 ECharts",dir:r},{title:"在项目中引入 ECharts",dir:l},{title:"资源列表",dir:n,draft:t},{title:"寻求帮助",dir:o},{title:"版本特性",dir:h,children:[{title:"ECharts 5 特性介绍",dir:c},{title:"v4 升级 v5 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