Want to render repeating React elements? You can put expressions inside braces. Notice in the compiled JavaScript why a for loop would never be possible inside JSX syntax; JSX amounts to function calls and sugared function arguments. Only expressions are allowed.
JSX + ES2015:
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render() { return ( <table className="MyClassName"> <thead> <tr> {this.props.titles.map(title => <th key={title}>{title}</th> )} </tr> </thead> <tbody> {this.props.rows.map((row, i) => <tr key={i}> {row.map((col, j) => <td key={j}>{col}</td> )} </tr> )} </tbody> </table> ); } |
JavaScript:
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render: function() { return ( React.DOM.table({className: "MyClassName"}, React.DOM.thead(null, React.DOM.tr(null, this.props.titles.map(function(title) { return React.DOM.th({key: title}, title); }) ) ), React.DOM.tbody(null, this.props.rows.map(function(row, i) { return ( React.DOM.tr({key: i}, row.map(function(col, j) { return React.DOM.td({key: j}, col); }) ) ); }) ) ) ); } |
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