Problems with array as state in React

Question

jsx transforming tool throws an error saying 'unexpected token: [' on the following line:

this.setState({array[index]: value});

Obviously I want simply to set new state but this error forced me to write some workarounds. Why isn't the transformer accepting the above line?

Anders Ekdahl · Accepted Answer · 2015-05-26 12:17:36Z

5

Simply because it's not valid Javascript (or JSX for that matter). You want something like this:

array[index] = value;
this.setState({array: array});

answered May 26, 2015 at 12:17

Anders Ekdahl

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