javascript - Update component properties externally -

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i trying wrap head around react. requrment have 2 components, both displaying same json data in 2 different ways. want call web api 2 method, return json result , re-render components variable holding data changes. since these 2 components need reflect same data, didn't want make $.ajax call twice. did small test component simulate part of process , can't figure out.

i have following jsx code:

  var data = {text: "some text..."};    var testcomponent = react.createclass({   render: function() {     return (       <div classname="testcomponent">         hello, world! testcomponent. {this.props.data.text}       </div>     );   },   updatedata: function() {     this.setprops({data: data});   } }); react.rendercomponent(   <testcomponent data={data} />,   document.getelementbyid('content') );  setinterval(function() {                 data = {text: "some other text..."};              }, 1000);

in setinterval method have tried using both testcomponent.setprops({data: data}); directly , tried calling testcomponent.updatedata(); both undefined error. tried react.testcomponent. , undefined.

i think simple use case, can't find example of anywhere. see lot of talk doing this, no code samples. maybe i`m going wrong?

you're trying call methods on testcomponent class; instead should use instance returned react.rendercomponent. work:

var component = react.rendercomponent(   <testcomponent data={data} />,   document.getelementbyid('content') );  setinterval(function() {   data = {text: "some other text..."};   component.setprops({data: data}); }, 1000);

though preferred more declarative approach of calling rendercomponent again on same node, so:

function rendertest(data) {   react.rendercomponent(     <testcomponent data={data} />,     document.getelementbyid('content')   ); }  rendertest({text: "some text..."}); setinterval(function() {   rendertest({text: "some other text..."}); }, 1000);

hope helps.


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