Javascript-react issues with ES6 binding events

Source: Internet
Author: User


Using react redux to do the project, encountered an event binding problem, loop is a traversal method, loop (Ajaxdata) This,

But I can't get the ID of this item, call for help.

Reply content:


Using react redux to do the project, encountered an event binding problem, loop is a traversal method, loop (Ajaxdata) This,

But I can't get the ID of this item, call for help.

onClick={() => {alert(item.id)}}

The item in the OnClick, because it is the argument in the function declaration, and not the actual parameter passed in, causes the item.id inside the function body to be the member value of the parameter, remove the item parameter or change to a variable other than item to try
It is recommended that you take a closer look at the arrow functions related content

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