ReactJS - access to props child in render for props transfer -


when try access {this.props} in render, crashes page. doing wrong here?

var react = require('react'); var defaultlayout = react.createfactory(require('../layouts/default')); var reactgridlayout = react.createfactory(require('react-grid-layout'));  var desktopstore = require("../stores/desktopstore"); var _ = require('lodash'); // var classnames = require('classnames');  var homepage = react.createclass({     displayname: 'index.jsx',      getinitialstate: function(){         return {             zoomed: desktopstore.get('zoom'),             layout: this.generatelayout()         };     },      getdefaultprops: function() {         return {             layout: defaultlayout,             grid: {                 items: 20,                 cols: 80,                 rowheight: 30,                 verticalcompact: false,                 autosize: false,                 isresizable: false,                 margin: [5,5]             }         };     },      generategriddom: function(){         return _.map(_.range(this.props.grid.items), function(i) {             return (<div key={i}><span classname="text">{i}</span></div>);         });     },      generatelayout: function(){         var p = this.props;         var layout = _.map(new array(p.grid.items), function(item, i) {             return {x: 0, y: 1, w: 1, h: 1, i: i};         });         return layout;     },      render: function() {         var parentclassstring = "desktop";          if(this.state.zoomed){           parentclassstring += " zoomed";         }          return (             var grid = this.props.grid; // crashes page              <div classname={parentclassstring}>                  <reactgridlayout classname="gridlayout"                     layout={this.state.layout} {...this.props.grid} > // crashes page                     {this.generategriddom()}                 </reactgridlayout>              </div>         );     } });  module.exports = homepage;

you can't define var grid = this.props.grid; within return, put before return. render method supposed return single root dom node or react component.

if in webpack build output should point out var unexpected token:

error in ./file.js  module build failed:  syntaxerror: unexpected token (56:12)    54 |    55 |         return ( 56 |             var grid = this.props.grid; // crashes page    |             ^

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